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IAP需要有两个工程,第一个是Bootloader,第二个是Application 同时将这两份程序放在mcu的flash里的不同位置,启动时自动进入bootloader(可选择)进行iap,成功后跳转至application。 * d1 |& p. N( t; L6 d; U
完整源码见最后内容,这里先瞎扯一点点:
1 l9 \# n0 g( V* z5 ?那么IAP问题简化成三个步骤, Step1:做Bootloader工程 Step2:做Application工程 Step3:烧进Flash的不同位置
& K: s4 [9 o4 ~- u+ a& M( cStep1:需要做这些事情: 1:初始化IAP相关外设 2:下载文件(ymodem协议) 3: 写入Application程序存储空间 鸡: IAP_Init(); SerialDownload(); 具体实现: - /**
5 x5 l1 ]+ P/ B( r" p* V" G% @! O - *@brief Initialize the Iap module(leddelay usart and unlock flash)
' O/ G; H% i: n" E8 W* _7 z9 R - *@param None % D/ O, {1 P! L, o7 Y* i
- *@retval None
2 F, i, x0 o3 B* G- ?1 D - */
* i" i! l- D% X. @5 e- ? - void IAP_Init(void)
1 v; X% ^# U9 g7 t5 q - { 6 _" F1 w$ C( V. J
- uint32_tt;
; {* n; O. M( w' j) C4 z* [0 b - LEDInit(); /*--Set up Led to Output signal --*/ % S& u2 N- `; y1 \$ \/ ^: g2 B
- SysTickInit(); /*-- Config System Tick for delay functions --*/
7 {% i9 q. C1 i: s - USART_Configuration(); /*-- Config usart to download .bin --*/
1 ?+ @# c: E; F* e. Q& S - FLASH_If_Init(); /*-- Unlock Flash --*/
p# H! N, P" r, I - for(t = 2000; t > 10; t >>= 1 ) /*-- LED1 blink 3 second indeicate IAPbegin--*/ ; u) v/ d) `& T7 z" e9 z5 `0 G4 h- O* X
- { 8 T% Y) k& R) Y2 s
- LEDTogle(1); delayms(t);
1 l: o% C" ^% G( x4 A+ e9 } - } 7 K/ T- N u( y" d" N
- }
+ i2 B. z9 K& j- @ -
4 w) x7 U9 Y6 _7 ?6 V - ) E5 [) A; P4 @. N8 B- P
- void SerialDownload(void)
# U& Z6 D8 u6 Y9 }8 ^ - { 2 O# _: U/ [; d9 ^' _- X
- uint8_t Number[10] = {0}; ' G8 ]" d$ O, g* }4 T# h
- int32_t Size = 0;
3 _, m( B3 Q# K% Y - 5 F& y0 G8 B; v$ Y ?* O1 t5 w
- SerialPutString("Waitingfor the file to be sent ... (press 'a' to abort)\n\r"); - _- j. K1 H. I6 `# s$ Y- K/ \
- Size = Ymodem_Receive(&tab_1024[0]); : K3 {+ c# B) U0 z3 z- C
- if(Size > 0)
. o2 k- H) S$ I7 F5 {6 O. U - {
; C$ f, f3 a. ]! E; \1 I& t* r - SerialPutString("\n\n\r Programming CompletedSuccessfully!\n\r--------------------------------\r\n Name: "); 5 x8 E5 X# h ~0 R6 u; D
- SerialPutString(FileName);
! t* V7 G. h8 r - Int2Str(Number, Size); - V: R, P. |# \. X8 C. d
- SerialPutString("\n\r Size: "); , ?% }/ |! W' p X" N
- SerialPutString(Number); . } z- y9 G6 o2 Z
- SerialPutString(" Bytes\r\n"); 5 E8 }. i- [* D( f7 K
- SerialPutString("-------------------\n"); 7 E0 L$ Q3 t) ^, ~: _! u
- }
' D9 X: \+ _6 q, J% L. a5 m - else if (Size == -1) . V! d9 K- V+ J
- { ) W; |1 Z; K) R
- SerialPutString("\n\n\rThe image size is higher than the allowedspace memory!\n\r");
: M h6 _, N0 L. I - }
2 L# \8 r! F( F; ? a! U - else if (Size == -2) 3 k0 I& E7 s/ G6 i. D6 [% W" L5 f
- { : \: M- G' N% M6 |
- SerialPutString("\n\n\rVerification failed!\n\r");
0 R; O+ l2 T% g+ v& J - } - D5 r/ h3 G7 q& |% G
- else if (Size == -3) 3 t) [6 M- T3 Q* I9 ^3 n7 i+ t- k
- {
# _6 I$ d# ]8 W( g. L0 V - SerialPutString("\r\n\nAborted by user.\n\r"); - P5 q5 `# a, H* U4 h3 |6 t
- }
6 @7 z5 S1 k, r/ H& j7 n7 @0 ?6 {) G4 [ - else 0 U4 e3 a6 Z6 _/ S9 o" j
- {
) o: {4 q n2 Z1 e3 c - SerialPutString("\n\rFailedto receive the file!\n\r"); 1 o+ ]9 q+ j, I9 B. @* q3 N
- } - v; f! p; i- o, o
- }
复制代码Step2:需要这样干: 在Application工程中程序运行的一开始加上如下中断拷贝即可 - void InterruptRemap(void) ! g0 d* b3 C* h3 I7 U7 q+ u* g
- {
' A S5 Z$ t3 X$ f - u8 i;
* d4 J/ s: R0 R% Q0 A9 q" R - u32 Data; 5 W6 t) o* l9 L& n0 r1 a
- u32 Address;
q9 K1 h1 S4 r" K4 s! q - for(i=1;i<48;i++)
. r8 N8 x4 [1 S2 h e' `, L - {
5 `* u) ?8 k4 x- }* ~# Z+ z - Data = *(__IOu32*)(0x08003000+i*4); , l' ~, ~! t9 T0 X
- Address = 0x20000000 + (i*4);
' r( A, N0 _$ h; ] - *(__IO u32*)Address= (u32)Data;
6 R4 T- y: R2 x' c: W, ` - }
! a1 \% L: j& x2 C2 f - SYSCFG_MemoryRemapConfig(SYSCFG_MemoryRemap_SRAM); 8 u# z% l3 x" n) ~4 O' a. f
- }
复制代码Step3:这就样 将两个工程分别烧在不同的flash地址段中 A:bootloader 8 @+ h# U# r, J" E9 R6 o# E: \' d
1:点Project选项卡,然后点Optionsfor Target选项如图:
2:Target选项卡下有on-chip地址设置,bootloader放在0x8000000开头的0x3000空间内 如图:
然后正常手段烧入flash即可。
- F, D: i$ d) ^* k- ]1 f2 }8 nB:application 和上述设置手段一样,只不过in-chip的IROM1设置起始地址为0x8003000,Size为mcu的Flash大小减去0x3000即可(注意是16进制哦) 然后就祝你幸福了 0.0 2 O% e' L7 d3 I( ?5 L6 [3 o
完整源码: Main.c - /* Includes------------------------------------------------------------------*/ " O- t5 q% l' i2 r+ H0 E% ^
- #include "stm32f0xx.h"
3 q1 I' P0 c% F6 b - #include "flash.h" , W& s) N2 G2 w. C) A
- #include "powerAPI.h"
" K' I4 A- T9 [3 T - #include "IAP_Bootloader.h" * T( E; z j7 O* z
-
: D- e6 H" M9 s6 N. v8 \7 w F - 1 A% Y1 I/ w$ x& Q
- /**
' g* p7 F# ], B! ^# h - *@brief Main program. $ K; D, y* O' |2 q% w5 L# _
- *@param None ! H" |2 S0 N6 W8 P* I1 S
- *@retval None 5 ~# s" x: `1 j3 j
- */ g6 S: ]3 r' P. C
- int main(void)
0 _; g. ^. r% ~ - { ) v6 q0 O h, i; e6 `4 B
- SystemPowerUp(); /*-- PowerUp && LoadSysMsg --*/
& u; Z9 s- d' b/ w' ?* c8 O - while (1) 2 k) `$ U; V( `" l9 B6 n' a( A$ D( R
- { ; P# I. @0 v' V
- if(FLASH_If_ReadWord((uint32_t)IAP_READY_FLAG_ADDRESS) == FLAG_READY)
4 r7 _6 f0 z4 p7 d$ X4 q5 K6 s6 q - {
' j( S8 O/ ~1 X& s& h6 t - IAP_Init(); 1 I+ u' R9 D6 I
- SerialDownload(); 3 J. k+ i+ i' ^4 C+ X1 q
- IAP_End_Clear_Flag(); . n; d* a# x' ~1 d
- } # d; m2 J3 B/ ]) `% d" O
- else ) z" _+ {$ b/ ~* R0 \* S- A
- {
# U8 t7 u. q# z - JumpToApp(); 3 p( F$ L% b" E4 \
- } . E# W2 ~( t) h5 ^9 _2 ~& G
- }
. m) I! Z' o- l/ n5 X; E! D9 t) y - return 0;
k, u. B' t8 W- K - }
复制代码- /**
+ t0 A; D/ m. }# q* b. ` - ****************************************************************************** ( K/ W/ i& [& @4 c/ ]
- *@file bootloader.c
- X7 c5 K5 N/ l3 p" ^' w4 z - *@brief IAP module function
' Q( A# @1 ~' B. P - *@CPU STM32F051
/ a6 R/ Z8 B0 z/ K: w! \3 x+ J* o - *@compiler Keil uVision V4.74
! T2 s Z, ]5 W+ y - *@author MetalSeed
' x- A+ r+ [3 m5 Q$ R - *@version V1.0.0
: l1 j/ t" P( _ - *@date 18-Sept-2014 2 }: c6 A3 g" Y; B9 _8 ~: d+ Z3 z
- *@modifydate20-Sept-2014 0 ]' G" a9 m/ e
- ******************************************************************************
& G1 ^2 R, \! e7 |6 C* x' j - *@attention 0 X( h# X: e' h, o2 `9 L
- */ 9 o, C2 Q# w+ g7 B9 i9 s
- #include "stm32f0xx.h"
: Y }; e! W c0 \6 N, B' F$ t8 l& |0 y - #include "IAP_Bootloader.h" , ~& F# l' g3 h% A0 T3 r
- #include "uart.h"
& s5 Z2 B; K1 p9 R6 D G" L" d - #include "led.h"
* e' I W, ]! `/ H - #include "delay.h"
' ]! [ U; H# h9 u! ~" R6 B: } - #include "flash.h"
' S1 J5 ~5 |+ c. V$ n8 z! L* N - #include "ymodem.h"
+ e3 V4 `; l1 I7 E - 1 w/ y6 V7 R' p) Y, b
- /*================================================================ + a# e% f) x+ \& n$ w
- APPLICATION_ADDRESS = (uint32_t)0x08003000
( F) L3 C0 t+ L& L" y& ` @ - defined in flash
+ |4 U" Q, K! s9 c' X - ================================================================*/
! w* F& [8 t8 A -
; n" t9 f9 F% `" v2 m- g, J - extern uint32_t IapReady; " g; Y9 d! @" _
- uint8_t tab_1024[1024] ={ 0 };
& O9 ^ a+ r1 _; N4 j - uint8_t FileName[FILE_NAME_LENGTH]; 6 p" b% w" x# M/ H
- , o4 y* u" P" V M+ d0 i
-
! b; Y: Z5 m. P5 r% ^/ C - + R" A( \! P4 g2 R; h, l% w8 a
-
! c# k, m9 U5 w: p - /*================================================================ 4 ]& p+ u3 k6 L8 Z
- About Jump & G/ I T; b9 l, c9 V" e; Y
- ================================================================*/
6 ?! A2 P# i6 W) |/ d' `9 P - typedef void (*pFunction)(void); /*-- define a function type --*/
/ [- k( j2 C7 j7 W# ^5 w - / @7 g* c) t' O0 q
- uint32_t JumpAddress; /*-- define the usrapp's address --*/
6 A, W N: F1 a+ D9 Y -
& e9 B- {" d6 E( [2 A" v# I% E9 c - pFunction JumpToApplication; /*-- definethe function pointer which direct to usr app --*/
X0 o0 [! l; q; S% ]1 l2 E - 1 B3 E5 d2 Y& h
- & h: b2 V- O( |) H
- /**
* `! h& n, `* R% d' z3 M - *@brief Jump to application 0 Q: ~# Y3 Q( ?6 V! ^' @- A' z
- *@retval None
4 k4 p( u' ?" \/ `2 P+ p - */
, F# `9 \$ d! p( y - void JumpToApp(void)
V; I- @; e. f" y6 N- G0 U" u - {
/ q- H5 W& O1 N- C+ A3 S - if (((*(__IO uint32_t*)APPLICATION_ADDRESS) & 0x2FFE0000 ) ==0x20000000)/*-- check whether stack pointer legal --*/ # C+ ~) p* t6 ?: s. W) t( b+ O0 U
- {
$ Z- E+ d/ S5 } N( b - ( J: B: O( S n* Y$ W, \0 G5 g
- JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS + 4); 4 j9 e6 q, R$ B) v3 h: X
- JumpToApplication = (pFunction) JumpAddress;
4 r3 e* j# z% M J7 L -
4 y" n3 Q4 B; M) G* G - __set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS); /*-- initialize theheap & stack pointer --*/ 3 O$ g) H( c# ]* e
-
, @- M9 d; t M- N- q - JumpToApplication();
, z& N. F ?7 H" {3 g: n. @ - }
8 |* G) v( K$ ^6 f3 n1 }, [ - } 9 _% R/ E. H3 c7 x; @
- % g) A% V* W7 R
-
! ~1 q4 T0 S3 T$ ? - & q Q; @% @, R2 X U
- 2 l* }( p0 h6 H
- /*================================================================ 2 ^3 Q, s& u/ G W2 E4 H7 a
- About IAP Download
# R j: `8 b9 d* K# N: M - ================================================================*/
7 p2 }% b- ^% x - /** : j* @- e% k% K7 G
- *@brief Initialize the Iap module(leddelay usart and unlock flash) . _" v. x8 T, ~. e# c
- *@param None
( g* d0 a( y1 B - *@retval None 4 R0 m- K3 k3 @8 G H: c1 e- e- H
- */ , ~. a z! c* v+ W
- void IAP_Init(void) 3 J4 l) H3 x; ~
- {
- X/ z9 F4 z7 L0 B, W - uint32_t t;
2 l# H( |6 o4 @( d - LEDInit(); /*--Set up Led to Output signal --*/ ' {! `+ z3 @# g! X3 b6 X9 e9 c$ J
- SysTickInit(); /*-- Config System Tick for delay functions --*/ ' s6 F9 j' g- e- Y! X
- USART_Configuration(); /*-- Config usart to download .bin --*/ 9 g5 C; Z2 P5 O+ {
- FLASH_If_Init(); /*-- Unlock Flash --*/
% t) m. D9 P9 A* k1 C2 p: D% [+ | - for(t = 2000; t > 10; t >>= 1 ) /*-- LED1 blink 3 second indeicate IAPbegin--*/ . G4 X5 C! r- D& z8 s) V+ M! |
- {
- K3 I- E l2 u( q% \8 E - LEDTogle(1); delayms(t);
$ t7 Q( x/ u4 U' ]/ d* J+ d8 b - } : S0 L' I2 S2 b8 z$ k* E; q
- } 7 G" W; z' ~( r' D
- : P! ]9 x4 p3 e+ `+ k
-
5 e& |+ |& l" ]8 v" u: l5 @ - /** 7 w. S, h+ U& H( u- ~
- *@brief IAP end, Clear Iap ready flag andoutput success signal 7 S6 j, Z5 ]5 U
- *@retval None 8 `6 K9 ^! \2 s
- */
! u. [9 R$ R8 x, E' z - void IAP_End_Clear_Flag()
% q, s [! v6 w! |% J4 Z - { - V& s$ B2 U$ ]6 |/ o& x
- uint32_t i;
& b4 n$ h8 D/ k - if(FLASH_If_WriteWord(IAP_READY_FLAG_ADDRESS, FLAG_UNREADY) == 0)/*-- clear iap ready flag --*/ * h. u p) s$ O% P' i* t
- {
5 m; V7 i. k/ V- G5 Y: P - for(i = 0; i < 50; ++i) /*-- IAP end, Led1 and Led2 blink in turnlast 2.5 second --*/
, j7 Q& P& Y' K* N: g; O% p - { 1 L! a) X2 {2 E" a: f& H
- LEDTogle(1); delayms(50); LEDTogle(2); ) m* [4 u. d) e% G( s/ K% S
- }
; ^) A3 ~6 ^/ M! J! M. E$ e* p' K - } % s5 o6 f, Z+ @& \1 @3 Y* A
- LED1ON; /*-- IAPend, Led1 and Led2 turn ON last 3 second --*/ 5 }: @4 R+ @7 y7 _
- LED2ON;
) u& L6 D5 a+ @" J9 S% I - delayms(3000); ) v1 o- J. \2 ^$ L
- } : \ C9 A- ]% S9 i: A7 C5 |
-
% |0 a! M2 |& f2 A) s4 \. H -
+ k' m2 `8 T2 B) F- Q. K - /** % d# Z% K: u) N5 {& a
- *@brief In App Program by Serial `( _+ t6 D+ M( X/ q
- *@retval None
1 ]' \" l/ G" R3 L3 u! W" h0 r - */ 9 K! }( D" _& L( {6 W# Q6 T
- void SerialDownload(void)
6 d: g* H( l1 u4 g6 b, ~. p# Q - { 6 }" \. y& e" Y/ C4 X! Z/ @, w" L
- uint8_t Number[10] = {0}; , ] {3 |, W4 W( p- }- u
- int32_t Size = 0;
3 z9 O6 r! |7 _* c* \ - 0 B: P+ A0 M% c/ g% V
- SerialPutString("Waiting for the file to be sent ... (press 'a' toabort)\n\r");
: Y- G: y: n' V& B- X$ F: `" H - Size = Ymodem_Receive(&tab_1024[0]);
# _# g# c2 a- s: G- n. T! ]7 O/ ] - if(Size > 0)
- U. ]0 m4 F4 W0 y5 O2 U! w - {
! }( L1 O4 n, p! U1 r! }* A# B - SerialPutString("\n\n\r Programming CompletedSuccessfully!\n\r--------------------------------\r\n Name: "); 6 D8 k& `: a7 M$ B% _% j
- SerialPutString(FileName); $ D- L/ u3 u: M
- Int2Str(Number, Size); + y, L% m" d4 x; T* b9 F9 v. l# E
- SerialPutString("\n\r Size: "); 8 S" R! y4 f9 T2 w. D3 U
- SerialPutString(Number); ( D: ^$ t# v K
- SerialPutString(" Bytes\r\n");
8 A* w/ Q! O: ~* s+ { - SerialPutString("-------------------\n"); ; i7 E. W; t9 B4 w+ q$ \/ |$ T
- }
3 f- c: o' C* p9 ~4 N1 N* o - else if (Size == -1)
( [ c- Z2 c+ H ^( S - { 0 `# z6 X. q9 T# d$ D
- SerialPutString("\n\n\rThe image size is higher than the allowedspace memory!\n\r");
- |/ x+ p$ I) ? a$ o/ A) x - }
( a; i! W2 D" X# @ - else if (Size == -2)
, n; u" | K& }3 K" ^; a - {
8 r L) X) l2 b - SerialPutString("\n\n\rVerification failed!\n\r"); , X( B; N% A8 I! w
- }
* C5 L4 i9 H% K& h - else if (Size == -3) * T i8 F! s' `3 e" X) p* n
- {
$ F& H- p5 y; T1 Z - SerialPutString("\r\n\nAborted by user.\n\r");
' [4 t) ]. c- W' W: R; S - }
3 Y) b! v u* V2 C - else
2 S; R) e+ }! b* L - { + i; l( f4 A3 ~- ?, K. Y
- SerialPutString("\n\rFailed to receive the file!\n\r");
4 t8 T% n2 G: f% ]) @ - } $ h& A' l# ~1 n: \
- }
6 S3 G+ v6 e5 G - 7 ~& _, K! [. T5 D' W2 N
-
8 q9 ~2 ]! ^, y* A0 W/ c- a - /** " i p- w" a; z% u
- *@brief Upload a file via serial port.
! e9 I$ l4 r/ k3 [ - *@param None + U# a" k( i$ y$ p) X1 J# W: S
- *@retval None
: j1 v- o0 `8 S3 I2 ] F) s - */ 7 y9 m2 d! V0 L4 d# N9 v
- void SerialUpload(void) ; ~4 L' Z( A# O( E/ U @" _
- { " c0 Z2 `- n; a$ O* @6 B( e1 f
- uint8_t status = 0 ;
' y( K7 s1 z, {. t- f9 W* F' e -
' P6 M5 i1 T$ N+ t4 h' K1 U - SerialPutString("\n\n\rSelect Receive File\n\r"); ! s/ h9 D% v$ ^% e
- : ?5 L. C7 N7 k! M' J5 X) k/ z @
- if(GetKey() == CRC16) d6 V3 k" ^) n) c, C' u6 z
- { ! R9 ^' f1 U8 v: I4 B7 t
- /* Transmit the flash image through ymodem protocol */ % Z# w& [6 L- Z' I
- status = Ymodem_Transmit((uint8_t*)APPLICATION_ADDRESS, (constuint8_t*)"UploadedFlashImage.bin", USER_FLASH_SIZE); : o2 M- ]+ e" s5 V' ?
- + F7 z) O! @# b. I
- if (status != 0)
5 k! ^: U, m" {8 h - {
! D! k3 R/ s% p k% b$ r6 { - SerialPutString("\n\rError Occurred while TransmittingFile\n\r"); * r) E0 u" G- n; ?
- }
5 j3 D8 k; |' R1 V% i - else 4 A8 @0 r4 t" u, q- j6 e3 w0 {/ [
- { 1 K$ {/ f" d3 d) x
- SerialPutString("\n\rFile uploaded successfully \n\r");
" Q2 u5 S! `3 U' J* b7 D - } " k4 n$ F! N- d$ C2 T/ E G9 e
- }
: i- U5 \3 m. R7 x - }
复制代码- FLASH.c
, C M- b( Z3 S# {; R' U9 D - /**
& K" g2 j2 z( _ K3 s& Q - ******************************************************************************
# c( f% y# C* ` j2 u - *@file flash.c 3 V" h1 h/ H/ |2 w/ {' I: ^% S
- *@brief XXX function ! @7 i6 G7 i( z9 p' Y7 W
- *@CPU STM32F051 : m3 C; k. x* k5 g8 U( q; j
- *@compiler Keil uVision V4.74
2 E, U+ H5 H3 R - *@author MetalSeed 8 J! y: ~/ o5 X' P$ x+ L! J
- *@version V1.0.0
& V7 V- {7 z5 f. A - *@date 18-Sept-2014 1 `0 \9 k3 P/ Z6 ^# `7 ]" z
- *@modifydate20-Sept-2014
# E6 R8 {. m% V- i - ******************************************************************************
3 J' Q: z' l2 ?/ f( H1 ^" t - *@attention + m2 t# J( x3 z
- */
2 i# {" J; V A3 @; j -
& [6 Y+ X9 l3 e - /* Includes ------------------------------------------------------------------*/ 0 _0 ]2 H8 I7 X9 ]5 n' L
- 9 S5 O q$ K9 j# W) y
- #include "stm32f0xx.h"
+ ~+ @6 v* I0 f - #include "flash.h" , s1 M$ }" y% }- Q# m
- #include "uart.h"
' [% q4 y& _; F -
3 P# `; c- w" E3 Y( b; y/ F3 W% l - /** @addtogroup STM32F0xx_IAP
2 H, w# D/ D2 I1 n t - *@{ 2 p) I$ p0 o' c: {' P
- */
v2 K' O' Z/ b% a. T9 O6 w0 H -
5 }0 w9 q8 F1 P7 p B - /**
- o) _4 A M! H$ u+ v - *@brief Unlocks Flash for write access 6 g' g# L" y0 w- E% {/ c
- *@param None
0 x$ S2 \7 h# `( g$ ^6 E" I/ Y - *@retval None - `) Y+ j. z. `8 G! f
- */
2 z* j; k/ U3 A! w j' W3 f8 q - void FLASH_If_Init(void) 7 X2 x) e2 X, \5 |% v$ j8 B
- {
0 Z/ b% X! ~/ G; W1 @ - /*Unlock the Program memory */ & o/ S3 x; N4 k2 K# x
- FLASH_Unlock();
* w% N( }$ Q) U) E - 0 @- t6 T/ _" B+ M8 F8 K
- /*Clear all FLASH flags */ 2 B; T# k' k7 X5 l3 y
- FLASH_ClearFlag(FLASH_FLAG_EOP|FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR |FLASH_FLAG_BSY); * o5 v; N- q, l% u. |; v
- }
, U* D+ Y. q6 A9 W: V6 \' w9 K -
& _$ R) y+ p6 r& G - /** 6 J8 Z1 a4 F& G* \6 }0 s4 [
- *@brief This function does an erase of alluser flash area 1 |6 Q3 V, S' e- ^ v; q' U P- B
- *@param StartSector: start of user flasharea & G0 ^" h0 d7 X7 D3 G; ]
- *@retval 0: user flash area successfully erased
5 `; p! b( c& [ M' [6 y - * 1: error occurred
0 c7 m5 A' D2 q - */ $ \ h$ A: J& H/ f O& b1 a: j
- uint32_t FLASH_If_Erase(uint32_tStartSector) 6 v' K) [6 v6 F' \0 Q+ P
- {
8 X9 e* I2 \4 y, ~5 q* u - uint32_t flashaddress; 6 E/ B2 {4 \2 A- n' i: v8 K
-
- Y& p+ ?" u8 h6 y- [! j: Q- ` - flashaddress = StartSector; ) k4 l6 [! D9 ?3 h) _6 ^" D% {
-
4 Y5 F3 S" ~% ?3 }* U - while (flashaddress <= (uint32_t) USER_FLASH_LAST_PAGE_ADDRESS) 0 T8 L, N6 r3 E* _
- { % ~& ^; |* F& x2 A; U, _0 B2 Y
- if (FLASH_ErasePage(flashaddress) == FLASH_COMPLETE) # `/ B6 Y k2 m% M6 B% W, S
- { ; E& I1 w0 q8 x# q9 y
- flashaddress += FLASH_PAGE_SIZE;
3 b; R2 ~ E8 S2 K# G - } / b# ~( E# ^1 F$ N6 Q0 |+ U, G
- else , B4 Z7 ^: w6 z3 y, M3 X! {
- {
( ^. e! J z2 b$ s* a9 ] - /* Error occurred while page erase */ A' l8 u8 ?$ O
- return (1);
& x* i; T" N) ?( i. [+ |6 R - }
; o b8 h( |: S) c - }
- M* ~9 y9 j2 ^: B# P Y3 ?4 C: g - return (0);
4 O8 n2 j/ T* {$ |! |" s# a; V; a - } ; U) _- C/ a* V, I, v0 w- c- \' l5 f
-
1 m- B0 g1 w ~* \5 k- ~ - /**
+ P* s9 _5 m' H7 w3 | R7 C! V - *@brief Read uint32_t int
. z- I- J' t$ j; o- o1 b# ?' J - *@param FlashAddress: address to be read # t8 R! r, H i' \
- *@retval Read value
5 M F3 ?% Z5 j# g( O/ T, f - */ ) ~( d$ V7 s; h3 D' O
- uint32_t FLASH_If_ReadWord(__IO uint32_tFlashAddress) 2 B+ S8 W) ?( Q
- { 2 z8 g3 z' n' ]/ w0 Y5 `
- return *(uint32_t*)FlashAddress;
" U. E8 s- @, y1 s% m6 h - }
1 A. n% I7 F1 N- ~& [( e -
1 {4 r5 `! Z0 H5 {2 V" j - /**
+ C9 F9 u5 T6 f* p! @- q0 | S* s- S- X - *@brief Erase flash by one page ' J: w" u3 V0 q
- *@param SectorNum: page number / K" K6 z& H- m& m! }
- *@retval None " @$ t" i! F: w0 ^5 }1 O1 Z; X
- */
0 f; E* p; A7 M" C% O6 p - uint32_t FLASH_If_ErasePage(uint32_tSectorNum)
$ d1 I( m9 h: f4 [8 S: r - { - X) {& a- K: a2 K
- uint32_t flashaddress; $ P, S; ~! _1 V
-
( k* \2 @( Q5 O4 z - flashaddress = SectorNum;
- U: X) N$ D6 f7 }$ S4 h1 | - if(FLASH_ErasePage(flashaddress) == FLASH_COMPLETE)
+ _9 {; y9 \- k4 ?* E - {
% z) F1 M$ A% N7 D5 q. i - return 0; . q* y( i1 B7 z- W5 }; }
- } $ b( T8 s: V, u6 W
- else
# q1 [7 y+ Z! H4 h& t - { `/ C& U2 T# r' i1 F0 Q
- /* Error occurred while page erase */ * A1 u& _, F3 x( d; ^6 j- p9 a
- return (1); 1 ?* K7 k/ S8 r- R+ _
- } 4 V( y! f) x* i' \! Y9 s& N7 o, N
- } / ]! f$ P- s# D, R/ M P
-
' }1 y' _; L, D5 I" o1 I; v7 c - /**
+ V$ Q$ c7 K7 ^) G: n! M- F3 [( Y- ] - *@brief Write uint32_t int
* o, M, G8 V% R7 P - *@param FlashAddress: address to write
$ s4 h0 |* ~" `! K - *@param Data: data to be write 3 c7 Z& W) \) B4 r7 _' S
- *@retval 0: Write success 9 g& L% W+ Q2 T' @
- *@retval 1: Write error ' B- s$ Z$ Z" T/ [9 y7 U8 h; a
- *@retval 2: read error
u1 A. c \ Q( i9 O - */ 5 e; _, p& K$ ?) E7 t
- uint32_t FLASH_If_WriteWord(uint32_tFlashAddress, uint32_t Data) / b: p9 X& A& S0 w/ |; G3 \, E
- { 7 k& ]. A# b% j. W
- if(FLASH_ProgramWord(FlashAddress, Data) == FLASH_COMPLETE)
8 }( F) G+ k) H, w# o3 w: F - { 1 k2 d" E a! A7 U y3 j( @( s
- /*Check the written value */ / `/ Y @" p5 H9 q( B# f
- if (*(uint32_t*)FlashAddress != Data)
# p& q5 K2 O, Z. T - { 3 D# c7 T1 @: P6 [: J
- /* Flash content doesn't match SRAM content */
7 V) K' D6 f# m4 @' W2 ~% @ - return(2); 1 r3 H) D: {4 Q
- } 3 U; U6 K: [6 _
- return 0; 9 X& p! \( L, B v, c6 O
- }
7 d4 ?5 G( ]1 ~: g$ c h - else
0 L% h" w; `( d- P( F5 P( i) l - { 0 |4 }0 C; g1 X- V2 M" y4 B4 H) g8 e
- /* Error occurred while writing data in Flash memory */ / c3 l2 F6 p. ~! G" R; L; ]" @6 Y
- return (1); 8 {( v9 o8 Q) B5 C9 E
- } # }* u) Y- g9 P
- }
: ]5 r# A4 M! a- t/ ]6 O, S -
! i6 s9 S# F$ `9 @& }1 H* H% e+ z -
1 G8 Z5 O4 Z% b! b6 @ - /** ' F5 l2 ]2 W9 z+ ]: l" p( j
- *@brief This function writes a databuffer in flash (data are 32-bit aligned). 2 f& d& a+ z5 ~
- *@note After writing data buffer, theflash content is checked. - B- F5 w" o i( k
- *@param FlashAddress: start address forwriting data buffer
8 y5 D8 Z2 U3 A W9 P3 z$ Q- Y - *@param Data: pointer on data buffer
4 | q# O6 W4 L- G. n3 r6 ]. J - *@param DataLength: length of data buffer(unit is 32-bit word)
A. \4 d" y9 g8 g: X - *@retval 0: Data successfully written to Flash memory % |) s; c. g. J; L/ ^
- * 1: Error occurred whilewriting data in Flash memory , c5 y, ^ A) L2 W
- * 2: Written Data in flashmemory is different from expected one
- G; f' l- G% Q6 [( i: K - */ 1 z) I: i4 G& ]: ~6 J9 ]
- 9 f( h ]! v' Z/ Z( k3 b4 K9 Q1 s
- uint32_t FLASH_If_Write(__IO uint32_t*FlashAddress, uint32_t* Data ,uint16_t DataLength) //ÐèÒª½«Á½¸öµØÖ·¸³Öµ¹ýÀ´¡£°´Êý¾Ý³¤¶È½«Êý¾ÝдÈëflash , w/ \( R$ s' E+ K- b
- { $ ~& K8 \4 W& h$ T
- uint32_t i = 0; / M! k- k& j' B% N" a, D
- for(i = 0; (i < DataLength) && (*FlashAddress <=(USER_FLASH_END_ADDRESS-4)); i++) ( |: W6 z$ e/ \: A
- {
8 {8 O5 r( z# i; k4 i$ L9 q - /* the operation will be done by word */
/ L! I9 k7 B `) Q0 \2 e' c) Z3 F - if (FLASH_ProgramWord(*FlashAddress, *(uint32_t*)(Data+i)) ==FLASH_COMPLETE) 7 e# @& }8 ~* Y* B3 m
- { , f+ ?0 ?6 k3 ~. }
- /* Check the written value */
( U0 P. p% \, X) L- n8 E' }( D5 r - if (*(uint32_t*)*FlashAddress != *(uint32_t*)(Data+i))
7 r' F- M$ {; E+ [ - { + [: q" q3 g# R* c. ^
- /* Flash content doesn't match SRAM content */ ; N/ ~% g, s( Q3 x* ]. C' A" ]& s
- return(2); $ ^1 g. A8 G. T% M; L1 J8 d
- }
6 U9 z" N+ L7 T1 f - /* Increment FLASH destination address */
: [" m9 {, u5 ?( a - *FlashAddress += 4; - J- m* c) ~' S( E7 o
- } " l! C, a5 H4 y. X b2 D
- else
; Y+ ], H- t: i; x$ D( O8 W+ d - { ' R2 ` e7 o: K& u& f( c, Z8 \
- /* Error occurred while writing data in Flash memory */ 2 v6 q8 i. z( B6 ?# l
- return (1);
& n* {% n6 p7 z - }
( _- d. {3 d t - } & H D7 f* g t% H/ B0 C
-
- u4 D& o7 Q! M( Z G - return (0); ) h6 ~8 d) r6 w J5 M4 s
- }
$ a9 F6 J3 F- c h( i5 U8 \! H! H - /**
% h) i8 u$ ?5 [& I2 {% J - *@brief Disables the write protection ofuser desired pages ( L" ~+ K; l# S9 b
- *@param None
. {( Z0 N. Q5 z& y: }2 k' u2 I2 G! `6 H - *@retval 0: Write Protection successfully disabled 9 d; N# w0 H* Y, m/ S; o1 A
- * 1: Error: Flash writeunprotection failed 3 }. f5 B+ |; h; J6 G c/ }
- * 2: Flash memory is not writeprotected 6 Y+ N& I) s. L9 `4 G
- */
6 d6 H. T& E; _, N- A4 y; u - uint32_tFLASH_If_DisableWriteProtection(void) 3 D" A9 u; ^! ~1 ~9 g; X z2 P y
- { ! r" s$ j6 M* [1 K) Z
- uint32_t UserMemoryMask = 0, WRPR = 0;
7 `& H* J5 W( v - FLASH_Status status = FLASH_BUSY; 1 w+ u; M" Q8 V3 j
-
! B7 L; U2 l7 v1 a$ i - /*Clear all FLASH flags */ 7 E F& P% e* f6 O- V* [8 }
- FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR |FLASH_FLAG_BSY); ) @( M5 I* y+ `0 i6 R
-
' h, D! ~/ `# U4 D, ?1 S - /*Get Write protection */
) G8 z5 j5 G2 y! n# d- ? - WRPR = FLASH_OB_GetWRP(); 6 W8 \6 `( Y/ |& n v& v
- + @" Q3 [! N4 I0 H1 [
- /*Test if user memory is write protected */ & w8 _ o k1 T- c# J: x
- if(FLASH_If_GetWriteProtectionStatus() != 0x00) . }9 O& H, O/ ?9 F& g" n
- {
$ M1 T) h+ {' ?9 L8 j+ t - /* Enable the FLASH option byte access */
7 }3 @4 T' u3 Q9 q. r3 W5 n - FLASH_OB_Unlock(); $ H2 p/ d ?8 f$ D. D8 r" f/ }
-
1 J# v/ a; `5 t* l% ] - /* Erase option bytes */ # p2 p1 M; U: r, y
- status = FLASH_OB_Erase(); 6 E& i6 e% V/ X K5 g. b! K
-
- o1 } n: P, G7 F - /* Compute the User_Mask */
2 g" ~& Q* n* F) K/ ? - UserMemoryMask = FLASH_PROTECTED_PAGES | WRPR; ) W& I6 E2 c4 V
-
, ]- g, Q% p* A8 ?& | - if (UserMemoryMask != 0xFFFFFFFF)
- @9 [. e: `" Z% B$ h$ |0 Z - {
( y5 T% B7 Z& w* j8 w6 q7 C' `& e - /* Disable Write protection */
4 [4 f- b. G! L' ]0 ]7 c0 p) o - status = FLASH_OB_EnableWRP((uint32_t)~UserMemoryMask); ( O7 f1 G9 j, T+ K' ^7 E
- }
( E, \' [# ~& g1 m - 1 |) U3 s6 q9 g7 }
- if (status == FLASH_COMPLETE) 5 k8 k" [: p' m; F
- {
$ g1 I* A9 _( K) e9 \4 J: d& R- H - /* Write Protection successfully disabled */
( I& ~ \8 ~& X9 p: t: f7 x9 k - return (0);
a$ {, I0 X. V( D2 j - } * Y8 E8 Q C' b% [! Z$ r2 _
- else
1 A4 i, N$ P4 g) \$ V; g, H) K - { % o0 y! [0 H" ^' Y; D! b- y
- /* Error: Flash write unprotection failed */ 0 k+ l& m2 G& a w5 G
- return (1); 3 V# U: ]7 b* p) h* r2 U
- }
. [- K* {$ r1 {) E" c5 v - }
9 A5 \( G- a! D8 ^. ]7 k( t" |1 f - else
3 b6 E" j2 }, c9 y+ |( U - {
p0 R3 b3 [4 W0 w# m - /* Flash memory is not write protected */ ) t# l* X! T- `
- return(2);
( l! s/ u! k$ y6 s% M+ b. y5 v3 D* h3 d - }
5 y3 j- |7 y C - } # M- C+ q9 S+ a. v( d1 ]
-
( Y4 H M" _5 X# s5 K& l - /**
+ q- \3 n/ ?* T* L - *@brief Returns the write protectionstatus of user flash area.
. X' ^5 \* f& O4 d - *@param None & K' O$ ]. F( f9 C
- *@retval If the sector is write-protected, the corresponding bit in returned q: n+ v% O8 W
- * value is set.
! k' G% |- ^" N! X" q3 q+ W8 P - * If the sector isn'twrite-protected, the corresponding bit in returned
( z2 Q6 i8 w) `# P- ? - * value is reset.
3 k: C3 o/ Y6 B7 s! L4 \ - */ : o, ?) X' c. `) p* t% U C
- uint32_t FLASH_If_GetWriteProtectionStatus(void) ( D5 I& e# B: ?- E+ g
- {
. d) C' ]$ C1 y. O& x# N - return(~FLASH_OB_GetWRP() & FLASH_PROTECTED_PAGES);
# N- C4 o9 f+ K - }
' k# W* J3 Q! y) F$ L4 {% e -
- X5 s) ~1 d" L1 U0 k: \ -
6 u. F( A* x- t2 T O4 H - /**
5 r% V. ]! d _1 ^ - *@}
$ O* N0 g7 R* h3 H! K& J - */
S( t) L# z+ b% v1 y7 ~% Z: H. @ -
3 {! M; S: k6 \, N F8 q$ l5 }) c% j: o - 1 [; u, a" P/ s$ V3 }
- /************************ (C) COPYRIGHTSTMicroelectronics *****END OF FILE****/
复制代码
& ?+ h. N4 Z$ E. ?3 CYmodem.c - /**
' o. Q$ W: ~5 e% \$ q9 i - ******************************************************************************
D, F9 i6 [& f# d - *@file STM32F0xx_IAP/src/ymodem.c
) g n) h, v# E" P0 ]2 | - *@author MCD Application Team
* m; E |. X; L - *@version V1.0.0
1 Q- I8 K( T, n# R- i# V9 J - *@date 29-May-2012 : }' B% t* S$ z8 p8 ~. [, @& @
- *@brief Main program body & W O" i( l% J3 z
- ****************************************************************************** ' H2 J" p+ f+ F( o& C( x9 ?
- *@attention
2 s; @: J3 _5 U% S/ B( P - *
/ P/ e* u5 y3 A& T7 u0 [1 E - *<h2><center>© COPYRIGHT 2012STMicroelectronics</center></h2>
^) X- W8 |) K1 ?/ E2 {: N: \8 ? - * - c9 ]1 s0 t; c- n: ~/ k
- *Licensed under MCD-ST Liberty SW License Agreement V2, (the"License");
9 X$ o. E! |3 j8 u6 G. B; n! l - *You may not use this file except in compliance with the License.
Q9 z- E# v0 A( U2 Z0 P. E - *You may obtain a copy of the License at: 4 ~! I: k/ A& p8 C
- * * Q3 m3 K( j0 x) S, ]3 c% o! T
- * http://www.st.com/software_license_agreement_liberty_v2
% F" h/ t/ _# \9 Z0 R/ T - * / A# y; F% E2 |" A6 g1 _: J
- *Unless required by applicable law or agreed to in writing, software
0 u) N" {! X2 z8 h' T2 G# {9 U - *distributed under the License is distributed on an "AS IS" BASIS,
* E e. o2 A3 G e: i' w7 V0 H" q - *WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ( t6 V. q- v! ~
- *See the License for the specific language governing permissions and
( e4 c+ y9 H& w% V6 X - *limitations under the License. : a; g# }& D% Q( q& |/ P G
- * + u) M4 u$ F: y* U* [; o6 f* H% W
- ****************************************************************************** $ f. W, {* x- n# {4 J; ~ c! V1 F5 C2 d
- */
/ o* T7 r- k: [; s1 { - /* Includes------------------------------------------------------------------*/
+ j4 W. k% w9 Y7 U, P9 w - - D" ]3 A$ q/ } X
- #include "ymodem.h" 5 Y% O# [- a. W% B1 T+ F" R
- #include "uart.h" 7 v' W1 P o) D+ z) J2 L
- #include "string.h" ( u- y( k+ V) ^! ]; }, W& a$ @
- #include "flash.h" 0 o9 G5 C. j& C h8 a$ Q
- + L- S0 T. y3 I
-
2 Z) q+ l7 l, x, t, V) z( R2 i& i - /** @addtogroup STM32F0xx_IAP
. f$ W5 j$ ~9 G! z - *@{ 7 K" b. f d8 x) F$ C/ Q/ v; k
- */
0 ?9 Z8 g; `7 X( Q4 h1 p -
1 ]& C4 K5 C4 r! o - /* Private typedef-----------------------------------------------------------*/ ) Y/ v' @& R( X, b( N
- /* Private define------------------------------------------------------------*/ ! U3 V- `, n* p& s8 K
- /* Private macro-------------------------------------------------------------*/ ' O5 b/ d7 ~1 k2 S1 }% ~; y
- /* Private variables---------------------------------------------------------*/
. Q+ _, \1 X- `. a( w - extern uint8_t FileName[];
! R8 l* j0 F$ ~$ z: P -
, f* f! K5 q: E. C$ K* x; j4 M# F - /* Private function prototypes-----------------------------------------------*/ " T! B/ Y" Z8 x8 k' h
- /* Private functions---------------------------------------------------------*/ 5 S# p) e( w2 Q. O g: \; U
- - I# {% g# R- K8 s1 v/ X" i
- /** % ?# `# d9 N! s: v& a# w# @
- *@brief Receive byte from sender : O; ~2 C0 D+ q
- *@param c: Character # h' F& p7 M6 i3 x6 @ q3 j% W
- *@param timeout: Timeout ' C, }" p* g9 c( U8 M9 M+ E# ]" Y
- *@retval 0: Byte received
+ \$ H3 H' d( ]2 O - * -1: Timeout
9 X/ v6 N% u1 ^$ T - */
" Z# |0 ?: V0 F - static int32_t Receive_Byte (uint8_t *c, uint32_t timeout) 9 ] ` ]/ N8 X* f
- { , E% ~6 S8 X; U w2 Q- J: T
- while (timeout-- > 0) 0 {! M" \6 N$ d |( C# O8 U8 { z& w" i
- {
" g z" W1 w8 W- n7 P: o - if (SerialKeyPressed(c) == 1) . Y4 k) N5 p" M; H/ [2 Y% M2 Q, [
- { : e6 g* ^. ?- P- U( G
- return 0;
; p- ?% ^* h: t! y - } ) C7 _: C Y) r0 N* @
- }
. X$ |) Q! e7 A; ?! n1 K - return -1;
* y- ]* i0 O7 F7 k% Q - }
" k# ]- l7 Y+ Q' I+ P - * {0 e" n$ z1 |2 m
- /** * u/ x5 I7 |+ S3 T2 {$ O
- *@brief Send a byte
7 W. m, E8 I6 O/ z/ z - *@param c: Character
- g! p8 O/ r& Y) ] - *@retval 0: Byte sent ( v' x& X% n6 o1 k- ~$ }$ s o
- */
* {' p' n' i T3 B, U0 G9 @ - static uint32_t Send_Byte (uint8_t c) + `1 f* B) i% A0 c* U/ F8 h
- {
+ E! k8 d# E- c& K - SerialPutChar(c); 9 @. F# j7 {) ^/ |' v$ Y
- return 0; 5 {+ y8 R w8 j/ b4 @+ B' @
- }
/ ^* l6 I, C, `% p2 w -
& t) R0 B4 h V - /**
3 O2 L5 Q3 E1 _: Y7 a6 W - *@brief Update CRC16 for input byte
( y7 O5 A: y. ? - *@param CRC input value
$ j! X5 w7 ^/ B - *@param input byte ! ~- n2 t7 Z* ?0 _! N2 V
- *@retval Updated CRC value 7 X/ J E7 Z$ Y8 ?) D
- */ ; b3 Y1 C5 I) M; _0 `3 }
- uint16_t UpdateCRC16(uint16_t crcIn,uint8_t byte) ) g+ @- B& g$ a1 U' T' `) [
- { 1 D- q: h3 V: v
- uint32_t crc = crcIn; {. J/ B7 r, d& l0 c4 i) `5 Y. F
- uint32_t in = byte|0x100; ! q7 U1 A F5 J2 J9 r+ `+ f
- $ V l; W5 t! e! R
- do
' ]* I" O, U) ~$ e5 A - {
: h# J3 L" A1 j" a2 |" s4 V - crc <<= 1;
- `! E# ?$ O$ j( w' E: D; F - in <<= 1; 8 u' V7 H) {, M. |4 ]
- ; b" r( B! J a! F: u+ P, e3 I
- if(in&0x100) " ^5 |4 P7 g& O( [
- { & P. l- s$ _7 u5 P# E
- ++crc; / o$ u2 v) y% e) i' u$ B
- }
* c6 f) _( l! ?8 q+ y# @1 V, x - b" p8 A' _+ T0 u: h
- if(crc&0x10000)
, y7 F+ a. @% t# Q - {
* O# t/ d% H1 X6 t4 a - crc ^= 0x1021;
B8 d d4 `4 m - }
6 i0 t, _8 U: [/ L8 E8 ? - }while(!(in&0x10000));
3 @0 d" F3 P8 H* k9 c - - U' E5 x8 y7 W o$ T+ c
- return (crc&0xffffu);
6 u. v& ]: k" a- H - }
9 H0 ?/ A# }/ b2 l \5 D6 A2 q7 \* V' C - % N5 u) O- X7 u# o- p/ }
- /**
- g" g) l5 V U( P' O% C - *@brief Cal CRC16 for YModem Packet 8 Q& E' o" ~6 `1 `
- *@param data
: `, s6 B9 [4 ]2 h6 m) S - *@param length
3 x5 L* R5 G) N4 X3 e) P - *@retval CRC value
4 E- }, L+ [; y8 h, T; g% t - */
* z0 q6 A: e, r& d, k3 u5 R - uint16_t Cal_CRC16(const uint8_t* data,uint32_t size)
2 y) H3 Y" O. |$ u& |; A" q4 x - { / M7 z: Y" J/ I6 c! n% r/ |
- uint32_t crc = 0;
( C* ^# M# `. C4 q% f8 B - const uint8_t* dataEnd = data+size; ( v& F2 q, S; @9 @3 Z% P+ Z+ `
-
8 F# w( s5 J+ h; p0 Z4 r7 L6 O1 m - while(data<dataEnd) $ c+ c0 C: S/ ^# V: V# p. [( y/ p
- { 3 x/ D* Y& | a/ e/ J3 e
- crc = UpdateCRC16(crc,*data++); 0 q; b9 u) X! o
- }
7 d2 A* {- E9 n6 w$ Q3 ]1 e - crc= UpdateCRC16(crc,0); 7 \. X/ u( ] t
- crc= UpdateCRC16(crc,0); ; @# | Q2 V- @6 L% E- F
-
7 ?! c5 D! V1 O - return (crc&0xffffu);
6 p& V( J( |4 @4 q) r; E1 v5 c0 G/ k - }
% [4 v# N7 |( d2 P! P2 U4 V, ` - 8 M: r4 W0 |& i( n5 {1 `$ r
- /**
, B' H6 [+ q2 v! | K7 v! a7 z; i- I - *@brief Cal Check sum for YModem Packet
) a& A8 a# v4 B, o' P+ ~5 s" ^ - *@param data 5 M( y; _: x$ e8 e1 N
- *@param length 8 u( w' w% A) K4 L: s' E
- *@retval None
; ?/ Z n" s2 W# ?! Z - */ ( }/ h4 _' ?! W* r& K) g' M! C
- uint8_t CalChecksum(const uint8_t* data,uint32_t size) " J' D& S0 h; k6 R
- {
5 m% d8 g" N* D$ V5 m3 i7 ?) D - uint32_t sum = 0;
. z2 v+ J. L3 s4 u+ R5 b# V - const uint8_t* dataEnd = data+size; + m& B4 o4 P9 G5 N
- 6 G2 J" r* S+ a$ w6 \+ N
- while(data < dataEnd)
J- S" H& a* c# | - {
1 O) a' ]3 ?7 w ?8 B - sum += *data++;
6 |% }" G% ~. b5 j. K - } 1 B: `1 [+ C* I: L' e8 S: b
- 4 z8 T# U# O$ @$ P# G
- return (sum&0xffu); : s1 r8 k9 q# h3 Q4 ?& y
- }
$ ?8 M0 X ?+ k, r& a. {9 F -
2 u2 `2 }) `- t( C - /** 2 c6 I% i5 r. @1 P. C
- *@brief Receive a packet from sender ' L% a' @6 Z2 R3 W/ j
- *@param data ) }& n1 X2 K/ p& y+ Q
- *@param length 6 }5 f2 y/ x# o; V% U
- *@param timeout & @ b' u3 O* b: w
- * 0: end of transmission
0 I3 H( l$ b: }- ] - * -1: abort by sender
( O, p( r1 I# P) K$ I - * >0: packet length 8 v' _$ a3 X; t3 H/ p6 k
- *@retval 0: normally return
* g6 q4 A3 M# {4 K7 [ - * -1: timeout or packeterror . r) l1 @5 q. @! z' R
- * 1: abort by user
/ G2 C3 p; A7 I* L: f- k - */ 5 q+ \+ a! F# e3 n5 K+ m
- static int32_t Receive_Packet (uint8_t*data, int32_t *length, uint32_t timeout)
3 }0 X* _: n% X, x - { s5 B) p+ I* D) S0 C, w' {/ N
- uint16_t i, packet_size, computedcrc;
/ |) F8 T' ^" q, K. C7 ] - uint8_t c;
! H. D1 J% O j - *length = 0;
* W/ ]* x; \+ L& q3 }4 I - if(Receive_Byte(&c, timeout) != 0) G! M" ]5 a/ z" J0 S' M* _
- { " L# H* g7 b/ A% U- G" \
- return -1;
9 U2 e8 @8 w1 k - } - `5 ^) ^1 i" r# C& I) O4 e
- switch (c)
3 O2 a; |& q. d - { n. i' W1 x) I
- case SOH: ' C/ I9 k6 _1 K' U6 w8 J
- packet_size = PACKET_SIZE;
9 g% S5 T: \, b0 X) X& f) k3 M - break; z. l0 B2 D% z2 D0 G+ M0 p
- case STX:
+ x0 Z6 g. J, f4 o2 g7 f+ U - packet_size = PACKET_1K_SIZE;
* M' {; p( M S - break;
- x2 I. j0 k% n" y, J - case EOT: , I) r- S4 v, l; A. V# H
- return 0;
& H" F" I( y/ e- u% X0 H: t - case CA: ! w: S' A) v( r' X$ E% |) f
- if ((Receive_Byte(&c, timeout) == 0) && (c == CA)) t2 ?4 q# I) }
- { 3 ~/ c/ h" l5 \0 }
- *length = -1; p- ? n6 g; X9 z t
- return 0;
+ |! q! P9 y' G5 C8 {. N - }
# ~) C+ ~3 L* ~9 v j% ]; G8 U$ e- M - else 3 [! _+ {/ P$ R9 D. C
- { + y3 P9 \! N; _% y8 o: @+ Z8 l
- return -1; , n/ s* m+ { [4 ~! }9 O
- }
* W8 v. C( s- {: `2 \) n" j - case ABORT1: 3 W+ @; J" N- A7 T9 J/ M
- case ABORT2:
$ @) W0 m- {2 Q5 n" L4 B/ C - return 1; . u1 t4 ^9 |4 W! b
- default: , H" R# [; r& q8 F4 l
- return -1; # q- m5 \2 H0 q% j% _( d- ^9 U& J
- }
. }& P; p0 L; O7 f& Z - *data = c;
+ z) `' j2 l3 Y7 v: b - for(i = 1; i < (packet_size + PACKET_OVERHEAD); i ++) & d8 ^' Q, {- X& y! t, b) t7 ^7 G
- {
( {/ e! V" n# z1 y - if (Receive_Byte(data + i, timeout) != 0)
. K0 N! s: G- w7 o/ x# T- W - { / q' O. |+ |* P8 ?! P
- return -1; % z- Y: P; X; M; C* a' b" ~
- } A! S. a0 L& Y+ e' [
- }
3 q% e& I ]% o% n/ X# H& _, g - if(data[PACKET_SEQNO_INDEX] != ((data[PACKET_SEQNO_COMP_INDEX] ^ 0xff) &0xff))
1 D* [1 G# ]% k O8 B0 m - {
* U1 H$ ]# ^( J- L& l4 z) z - return -1; ' z \8 Y1 i' R5 C
- }
+ N! O% o- T4 o1 g - . T! z' ~ h6 @. c# O4 `* E, e
- /*Compute the CRC */
: z0 D" |# R7 A" X' Q& P2 T - computedcrc = Cal_CRC16(&data[PACKET_HEADER],(uint32_t)packet_size);
8 k8 ?9 q$ i; S; e - /*Check that received CRC match the already computed CRC value
3 _0 k) ~8 c1 T9 n. Z. c - data[packet_size+3]<<8) | data[packet_size+4] contains thereceived CRC
# j. f- R# ~ E% m5 r+ C - computedcrc contains the computed CRC value */ \8 Q( A; S0 y& I* q5 T8 A) g
- if(computedcrc != (uint16_t)((data[packet_size+3]<<8) |data[packet_size+4])) 7 e2 B. K4 J: Z Y
- {
! U: i4 H5 ]+ N2 |8 ? - /* CRC error */ 3 s3 Y! o8 T m0 j0 f% c8 R/ Q
- return -1; 0 {+ {/ }: m! t% w
- } + I0 l" V/ p; _. m
-
+ h# i( g' l* s# @. J) F- N - *length = packet_size; : \& y. ^( }+ f2 Q/ L
- return 0;
& w9 R. F5 M% H2 U6 U! w0 j - } / y3 r; ?+ A9 }
-
& T0 y1 D# H+ N+ t& {/ Q" _ - /**
# ?' U8 X4 y& ^ - *@brief Receive a file using the ymodemprotocol
5 [) R9 K" H. T5 K7 g/ b# H5 Y: L, | - *@param buf: Address of the first byte
: y( P0 W7 L: D1 D0 c$ Z- h - *@retval The size of the file
" [$ ]/ L( Q9 @6 z L6 a& [: w - */ 6 H! Z' P* f8 Q2 w# _
- int32_t Ymodem_Receive (uint8_t *buf)
3 A# U+ y5 H+ y8 Z2 q# v$ ^$ `% u! |, p - {
+ C3 X, f5 w( p, |0 j - uint8_t packet_data[PACKET_1K_SIZE + PACKET_OVERHEAD],file_size[FILE_SIZE_LENGTH], *file_ptr, *buf_ptr; ! T0 _' s4 L) \' q2 N
- int32_t i, packet_length, session_done, file_done, packets_received,errors, session_begin, size = 0; # H. Y+ N( P; m
- uint32_t flashdestination, ramsource; 3 ^2 |3 q% e0 \6 U+ b+ j0 @ X
- ! j+ m; E0 K C$ o
- /*Initialize flashdestination variable */
1 V( o* x! B; b( j J - flashdestination = APPLICATION_ADDRESS; * e/ A7 D- k h4 Y/ d. S
- / o7 Y8 _3 \% N, K. W
- for(session_done = 0, errors = 0, session_begin = 0; ;)
4 f/ j0 u: ^# I - { 2 `8 S9 e% ~; q5 ^: r
- for (packets_received = 0, file_done = 0, buf_ptr = buf; ;)
. P9 j' p6 O: t1 D5 l C; g5 f h - {
! N* P1 ]' B/ j) t) p - switch (Receive_Packet(packet_data, &packet_length, NAK_TIMEOUT))
% X0 l% m2 M) V7 o. [) f - {
+ C! s. b0 b, t0 D/ I - case 0: . m' T& W1 \8 q: U" y0 f. D- I+ B% i- d
- errors = 0;
6 g+ u! w6 k' O' j7 N. J4 c - switch (packet_length)
: d4 K- V( c! v8 D4 A, O# N* U - { 2 ]5 h8 H8 F+ y3 z# {- \# \. M. R
- /* Abort by sender */
# G. p# I2 R" m) ~ - case - 1:
( n6 e0 H5 ?: s# p - Send_Byte(ACK);
$ @2 u5 ^/ K" Z4 b/ S - return 0; : s$ @) R7 G- O* t" Z9 o
- /* End of transmission */ 8 t" _! W' X, ~
- case 0: 3 S, o2 W$ |' H2 _9 p9 \
- Send_Byte(ACK);
. v+ D1 n3 y$ Y; d0 i - file_done = 1; 1 R% U" z8 L& c( K$ G( C t
- break; # X7 c I+ C2 m; m+ [$ m2 U1 F: X2 G
- /* Normal packet Õý³£Çé¿öϵİü*/
0 V' v4 u% y% N - default: 9 h0 [. b4 z) b/ g
- if((packet_data[PACKET_SEQNO_INDEX] & 0xff) != (packets_received & 0xff)) # L! O8 m {, n2 i* `0 l# g
- { / ~7 A0 n3 J0 J1 _! K- R
- Send_Byte(NAK);
9 r4 k! {6 h( c4 ?/ L - } * ]7 A- q, {( y, O9 D4 |
- else % m& [0 g7 E* i7 N! z( i
- { - q$ H7 D5 W, p: ?$ Y g+ H
- if (packets_received == 0) % N' d9 ]2 W8 r; `
- {
8 V) \) u% E) ^/ G/ U - /* Filename packet */
) A6 ?2 s: w# J1 K - if(packet_data[PACKET_HEADER] != 0) 6 @. O! h4 M% S" H
- { $ A0 _; H. } {0 j P ?0 v$ i3 M
- /* Filename packet hasvalid data */ * Z: t: B1 u0 w# s6 D) ]" S- [
- for (i = 0, file_ptr =packet_data + PACKET_HEADER; (*file_ptr != 0) && (i <FILE_NAME_LENGTH);) , J8 ]" K7 a9 v2 T9 K- l1 K* H
- { % {$ a! P* x1 s) ~
- FileName[i++] =*file_ptr++;
$ x4 Y+ h* l" q% r; [% I - } 5 S/ Y! j0 c& X9 l4 F$ @
- FileName[i++] = '\0'; - e, P& L% S: m `0 {) p4 a
- for (i = 0, file_ptr ++;(*file_ptr != ' ') && (i < (FILE_SIZE_LENGTH - 1));)
/ X, B+ i, @: l2 f! `- y - {
~% _& ?. f0 m! a \' M- {" F - file_size[i++] =*file_ptr++; 4 _& ]$ `, D# D# D4 U5 w5 }# s
- }
a7 Y8 r) @7 a! ?6 Q: \( \ - file_size[i++] = '\0';
7 V' g: ~% t0 F: @) A9 [ - Str2Int(file_size,&size);
3 b& s. S- v [/ I. @, o3 b -
7 T. L1 Q" ]( |# m( Q - /* Test the size of theimage to be sent */
; ?" P$ `- }/ j! v- t( a - /* Image size is greaterthan Flash size */ . r2 m4 r+ C+ W" m% n2 b, M
- if (size >(USER_FLASH_SIZE + 1)) 9 L$ u( e/ A/ O6 r
- {
3 i5 w1 t: o- F& ~9 }. x - /* End session */ 1 O" Q- \+ F! I. c0 @
- Send_Byte(CA); + K& a# J9 b4 n- y; _6 ]5 X
- Send_Byte(CA); 7 t+ J' _1 C& J' ?, G* ~/ l( }/ {
- return -1;
: n3 d# T1 y8 U7 @ - }
8 j0 E8 C. L, c% s- s( k - /* erase user applicationarea */ . ?: M3 o" O. y
- FLASH_If_Erase(APPLICATION_ADDRESS);
/ |. ? t% J' b u0 y, w - Send_Byte(ACK); // ACK and 'C' ?
" Y' {* _+ x4 c - Send_Byte(CRC16); $ \/ i% }2 @9 E4 _0 F. D- |! A
- } ( S( r& F5 v$ q) g
- /* Filename packet is empty,end session */ $ r2 o. r4 D7 R; y) C
- else 8 _; M) q% H. _ |1 b. h4 h, k- N( F
- {
) N7 _" ^- I ^6 C Z, L# x - Send_Byte(ACK); 5 d- a" F2 S6 y7 }2 R
- file_done = 1; ' n5 d- ]$ K0 l. H* K( a0 ]
- session_done = 1;
2 D1 }5 ]* b, L - break;
- g% q9 h# M# `1 C - } 9 Q" ~& @( I2 M; \
- } 0 K0 M6 P( o3 U" h. v
- /* Data packet */
+ s8 S* s& F8 k% Q4 n3 l! X5 c - else //Õý³£Çé¿öϽøÈë ' `; w- e" i5 l% r5 \; x, m% I7 A% W
- {
7 P! B" H6 |8 Z% i" ]7 S - memcpy(buf_ptr, packet_data +PACKET_HEADER, packet_length); \; x2 j3 J& ]9 w! m7 {
- ramsource =(uint32_t)buf; //bufÊÇÒ»¸öÖ¸Õë ) e( W$ {) i) J$ T* m7 }; J4 l
-
( v6 m J* d; B2 b- Q! a b3 s0 M E& f - /* Write received data inFlash */ ) }4 O9 Y: p) J
- if(FLASH_If_Write(&flashdestination, (uint32_t*) ramsource, (uint16_t)packet_length/4) == 0) //½«Êý¾ÝдÈëflash
5 B4 s t1 e7 l# [! _ - {
+ K& ?, v- g @0 n0 x6 s) x - Send_Byte(ACK); //дÍêÒ»Ö¡Êý¾ÝÖ®ºó·¢ËÍÏìÓ¦
, y4 e) |" A3 `$ ?* Y: I! w* o - }
& K! L) U" N4 I" g$ Q - else /* An error occurredwhile writing to Flash memory */
0 p. G! a/ H! |' M - {
! Q0 H+ }6 O3 U1 d: r' y" D! w - /* End session */
" L* {, {# U5 i - Send_Byte(CA); 0 x% D, E# L/ Q. j- \
- Send_Byte(CA);
, W. [% \/ C2 ]7 Z+ W( E5 c. s' ^ - return -2; }, m( l: c8 {/ a
- }
( M* L0 o: g# q( p u' G - } 2 t% ?% Q* [- g: w0 i6 c
- packets_received ++; //°üÊý+1
( y4 s. Q! A& ^ - session_begin = 1;
. w, t3 Z3 s* ^& i - }
. p- Y& X& n2 E) U" f0 H! J" H - } 4 g. |* ]- o% ^* m6 b6 I1 `5 F0 n
- break;
, O/ r; O9 F# x: {* r - case 1: . [ D4 v J: N& X3 K4 r6 W+ e
- Send_Byte(CA);
% N, m, C6 m- b - Send_Byte(CA);
$ P; B q- u& V2 K) ` - return -3; 5 P1 e! b: A" Y$ H$ n) h
- default:
: B9 f" c c' c6 J" T3 Q* ?& c - if (session_begin > 0) //½ÓÊÕÒѾ¿ªÊ¼£¬µ«ÊÇReceive_Packet(packet_data, &packet_length,NAK_TIMEOUT)¸Ãº¯Êý·µ»Ø´íÎó¡£
) X" w' L$ d& s# k* c) q - { ' f: x0 H* p1 e& r
- errors ++; " N* v& ]0 ^* Y u: J5 m6 l
- }
2 e( H" e/ s. D; s% {% k - if (errors > MAX_ERRORS) . J9 ~6 E. b& t7 i: c
- { 2 n$ v/ d: A \% w0 O
- Send_Byte(CA);
+ `9 F2 P- m( [8 V3 y% @2 K1 { - Send_Byte(CA);
8 D& E% l' n" c3 C - return 0; 8 v. Y0 U' K# f- g2 W& H
- } - @( b+ L% M2 h x
- Send_Byte(CRC16); // the start C!!
. w& g( ~1 P6 N( d+ E) f$ T - break; ' d4 c+ R C9 I- Y
- } ( R9 {; b A) W$ ^: ^9 \; m! n
- if (file_done != 0) ' q; G$ C7 S4 G% m, @& }) |, n8 a
- {
/ p |* _, }' Y' N ]0 k M - break; ! p8 z- p! o! N. K1 I
- }
0 |* b# U: K) _2 `# {& H5 a - }
! F) _! _! ]. T) H9 I. L g2 o - if (session_done != 0)
( h1 h R" R8 p7 f. B: g - {
. i/ ]& O1 T5 G- f - break; + H! M; \; Y) x# G
- }
! E9 u) [) e8 l( U0 x( Z6 N - } 4 `. B/ A+ T( n2 V& o$ `
- return (int32_t)size;
" t# n" E% I- n( i - }
. J J0 H/ K+ ]5 p. ~5 Q' T# b# G# H -
" p" d: t i" M* X - /** 1 c8 x* `' v/ I7 K; n* V
- *@brief check response using the ymodemprotocol # T3 l0 ]4 H' @3 H6 b
- *@param buf: Address of the first byte # n" [, X4 [; g3 [5 u, e
- *@retval The size of the file 2 j5 i7 \8 ]6 t6 L
- */
0 M% G4 U' Q0 t3 W: W. r: k - int32_t Ymodem_CheckResponse(uint8_t c) 6 X5 v+ a6 K1 i2 _! m
- {
/ k: @3 m* \# \2 J - return 0;
# T, h+ ]2 K) r% D - }
( x2 f- d/ K8 k L0 E! o - 1 x9 G7 B0 U3 b+ E5 M2 j, Q$ F4 L
- /**
% L- |6 B: f7 Z: _3 [" L0 R) F - *@brief Prepare the first block / X) x: ^& F& b4 g
- *@param timeout * v2 z/ Q# a( V7 b! `) Q3 b: X9 i
- *@retval None
8 U8 b' I8 M6 c - */
( Z9 k. E: S" z4 S' y+ g$ _ - void Ymodem_PrepareIntialPacket(uint8_t*data, const uint8_t* fileName, uint32_t *length) 3 y% j( ?$ T& X1 X0 j
- { * d" K9 s% V- \! x( E1 d
- uint16_t i, j; 1 F! Q3 Q( M- F% d" C
- uint8_t file_ptr[10];
E0 R% i4 _0 k, \% _. \ -
* H5 d7 ^/ ^, t# o, J( r - /*Make first three packet */
4 | z' _* y N" ~ - data[0] = SOH;
T; ?5 Z- F; c3 r! ]9 y - data[1] = 0x00;
7 o2 O& V4 U$ y8 S/ O - data[2] = 0xff;
) G4 F2 j! v. K4 E) t8 K - , P# G8 [* c$ ?5 B9 _, J$ h. j
- /*Filename packet has valid data */
& M% T4 N( M4 C; x4 i* x+ {) Q - for(i = 0; (fileName[i] != '\0') && (i < FILE_NAME_LENGTH);i++) " @5 Y1 _) Y. Y7 z9 B" @8 Z
- {
4 P) I# N7 W& U' M - data[i + PACKET_HEADER] = fileName[i]; . }5 y9 _# P. \
- } 8 m0 ]+ m7 L, u
- 0 t1 h. }+ ^: v7 c3 I& o
- data[i + PACKET_HEADER] = 0x00; 6 r" m; Y C6 d- Q! V4 u3 T
- & M6 s1 H. c9 C! g
- Int2Str (file_ptr, *length); ( R- O4 G8 A( m: }7 a
- for(j =0, i = i + PACKET_HEADER + 1; file_ptr[j] != '\0' ; ) . X7 i% O4 j6 k" \2 p) z$ y
- { 5 n; j) K# x: q6 N3 i
- data[i++] = file_ptr[j++]; ! z" V" \, _; F" N
- }
9 A, s# \0 p- R# d, J - 0 ~- Z% H3 L, ~9 K' y
- for(j = i; j < PACKET_SIZE + PACKET_HEADER; j++)
' p$ k8 L# z' W: b - {
/ E) ^1 b8 f3 H! _) o - data[j] = 0; " n6 ]- [# w# J4 w
- }
3 h0 H9 Q0 @! n6 `4 b9 I - }
4 R' Y' G z+ g' t. } - 7 ?2 O0 h/ k' S% y+ e0 T8 L
- /** - a7 {9 U" ^4 Y' w) [- R
- *@brief Prepare the data packet
2 J6 T% Q) g/ l, c3 i8 G% x6 M - *@param timeout
5 o, H: k1 W* z5 Z9 v' h1 y: |. W* @/ c - *@retval None 3 U5 L5 n% j3 `7 i$ \
- */
3 H }6 F2 b' M4 {0 ^9 W - void Ymodem_PreparePacket(uint8_t*SourceBuf, uint8_t *data, uint8_t pktNo, uint32_t sizeBlk)
# b2 Z E2 q1 A2 U - { % f8 y8 I+ V+ @6 z9 H
- uint16_t i, size, packetSize;
: L0 Y* H; I" ~, i, b6 i - uint8_t* file_ptr;
4 _% K- P u; q6 d! @' c -
9 n3 m% y: O5 U0 s. ^9 F - /*Make first three packet */ 0 G j0 L6 Z- y& t
- packetSize = sizeBlk >= PACKET_1K_SIZE ? PACKET_1K_SIZE :PACKET_SIZE; " z" A0 r' V5 A' c, Z3 e7 u) a
- size = sizeBlk < packetSize ? sizeBlk :packetSize;
- B6 b" N4 q( ~- c& d - if(packetSize == PACKET_1K_SIZE)
8 @' d( d4 x7 ~, Z - {
/ ~) Y6 A: k% C2 V4 L - data[0] = STX; , Z2 u# ^6 x4 L
- }
- V8 @; x0 B5 P* ~% j; ~0 K: _4 | - else
, _ ^* f! e' ^( w$ B8 b: ` - { $ C$ \5 G' s2 \4 ~# {
- data[0] = SOH;
* }6 w2 ^, c; M R - } ; G- f! C5 `5 t: _7 L0 F, y) g
- data[1] = pktNo;
% ]$ ?9 p! _6 K - data[2] = (~pktNo);
" A! _( x0 `9 U6 Z' d% d' i: ~ - file_ptr = SourceBuf;
7 o! W/ a7 j' u5 f3 [% L -
5 ~6 U# [. o+ q* V - /*Filename packet has valid data */ , }8 g9 {' U* {' g( z/ Q4 A, h. o
- for(i = PACKET_HEADER; i < size + PACKET_HEADER;i++)
0 H( t' u L1 l* Q' A% K2 L - {
6 Y1 J) s' C/ G: W/ O - data[i] = *file_ptr++; * ]1 b% p& r6 w# b
- }
- G$ g3 U# Q' X: I - if( size <= packetSize)
: [$ m; N* f7 J3 K: k - {
9 u/ Y: r( K j4 [ - for (i = size + PACKET_HEADER; i < packetSize + PACKET_HEADER; i++) # N! H! s2 j. C& {0 t% [+ f/ A
- {
+ Q# f+ `8 |0 Q5 U. D/ C - data[i] = 0x1A; /* EOF (0x1A) or 0x00 */
) x& m; K6 S, q$ Y) \( H- D - }
' @1 t6 [3 |! G+ o! l: q9 Z - } , E) T6 \8 S; w6 M
- } & u; M- m6 r+ X: B0 F/ r
-
8 t; Q; v! _' F4 ^6 B - /**
$ B# o ] v9 P% L/ h4 i8 a - *@brief Transmit a data packet using theymodem protocol 5 C) Z6 c' U N3 D: i7 v1 e# y
- *@param data
& @7 f1 B9 s8 g. q$ c8 F - *@param length
' ~ l F3 r- H1 i - *@retval None 8 `8 F. O9 I5 B+ C5 `# N* F
- */
* ~' A+ G5 F# `+ F# V4 { - void Ymodem_SendPacket(uint8_t *data,uint16_t length)
% m2 ~" Y% v: t$ j- q! J' @# C# v - {
0 q9 W; L" G6 g+ E0 N+ i& l# q* x - uint16_t i; 6 @' @5 K+ G8 v0 Q
- i =0; , r3 @: R# P6 `5 u* P1 L
- while (i < length) 6 s) V" D% K$ I0 f, b% | y5 P2 D/ ~. E# f
- { - E0 }" t7 M, O9 m
- Send_Byte(data[i]); 7 [: R% W% S5 K% r0 E% {' n$ h' K! O
- i++;
; {+ e6 X+ w( j - }
, ]3 c7 y$ F& D7 B2 ^ - } ( B" y) T* a, ^0 @2 u) ^0 n. D
-
$ o. L% r$ o7 C% e" @7 h% W& u2 f - /**
( Y6 m1 W4 ]7 B - *@brief Transmit a file using the ymodemprotocol
$ K9 }! J9 a3 H' ` O9 n6 F6 [2 L - *@param buf: Address of the first byte & R2 K! W# W7 I0 f& g9 I: O
- *@retval The size of the file
]9 v& x0 g& r - */
) z* Y* u3 n( G( P5 B# r - uint8_t Ymodem_Transmit (uint8_t *buf,const uint8_t* sendFileName, uint32_t sizeFile) i( I- U B: O( h" n7 D; |
- {
. d1 y4 X3 x/ F- Y - uint8_t packet_data[PACKET_1K_SIZE + PACKET_OVERHEAD]; ; Q: s: A: e1 a; |/ Q( H! y. F
- uint8_t FileName[FILE_NAME_LENGTH]; 6 A+ |# g9 Z1 F/ y
- uint8_t *buf_ptr, tempCheckSum ;
$ S! o5 h* E4 D - uint16_t tempCRC, blkNumber;
" ~% i+ W1 H3 G* h - uint8_t receivedC[2], CRC16_F = 0, i; 4 Y8 p5 u* E9 C6 E G- J7 o
- uint32_t errors = 0, ackReceived = 0, size = 0, pktSize; - a1 o3 R. n) w! U3 x: |
- ; O$ N' s3 W# l4 z) W1 s% V
- for(i = 0; i < (FILE_NAME_LENGTH - 1); i++)
! N* W6 W+ `; A+ O) } - {
0 o- `. r2 y! b6 X2 Q) v/ Z, n - FileName[i] = sendFileName[i];
y/ v" ~/ l8 `. | - }
- Y3 K, r! R9 U2 r; V, o1 t% \ - CRC16_F = 1;
" Z. `) _* ~" d3 z4 @/ W( Q+ ] - 0 y6 ^( [$ l+ O( E0 M0 {9 f
- /*Prepare first block */ 4 u. L6 G0 z% t0 @/ H
- Ymodem_PrepareIntialPacket(&packet_data[0], FileName,&sizeFile);
& E" H+ y$ n' u) I/ h! a - 8 f. M0 m( e, H8 {7 D3 y! j
- do ' J6 e ]/ X2 ~: b" [# l
- {
- J$ a- ~6 H' n( j* ?; p5 L - /* Send Packet */
$ Z; s$ d& F! F1 D7 p - Ymodem_SendPacket(packet_data, PACKET_SIZE + PACKET_HEADER); & F8 ]1 E8 X) q( h6 {4 ~% K
- : m& i( K1 l# {: V! m
- /* Send CRC or Check Sum based on CRC16_F */
# P, ^8 V N1 y1 o" O! b) Z* t - if (CRC16_F)
x1 E: ^3 G6 d5 Q" A0 w* E - { " M6 [) ^; `! }" S: v8 ~* H
- tempCRC = Cal_CRC16(&packet_data[3], PACKET_SIZE);
8 H' A5 [- P+ D, V K& [, [ - Send_Byte(tempCRC >> 8);
4 x/ L' w) g. ` - Send_Byte(tempCRC & 0xFF);
8 Z N: ~. [% ?$ p! h; E - } }5 P6 o! M ^4 E& H- r) V8 ~
- else
8 ~0 d# @) ^" }) T. \' P. p+ ] - { / v8 _% s3 f; L6 T
- tempCheckSum = CalChecksum (&packet_data[3], PACKET_SIZE); 1 G( ~; v3 H1 C5 p
- Send_Byte(tempCheckSum);
, T- R' b' J6 N- a - }
, W; n" `0 N# b2 t# J/ _/ [ -
( ]2 M- u0 P! D( f% v - /*Wait for Ack and 'C' */ + b; `% z3 N" b: \* P
- if (Receive_Byte(&receivedC[0], 1000000) == 0) ' b2 s6 T$ y* Z4 O0 X. l4 e
- { 7 s/ o% g$ m% e4 ?% w9 G9 G% s2 d
- if (receivedC[0] == ACK)
7 P4 m8 X- C6 P. p1 ?, K6 D - { / z' l9 z% }9 m
- /* Packet transfered correctly */
' n* ~% E* O3 v* [( S6 d# | - ackReceived = 1; : S9 {4 P% N4 {3 Z1 a- j4 U
- } 3 Q1 L2 x* N- g0 L4 M: N
- } : P0 f& }2 w! G! M2 z7 [
- else
+ F4 u; ^( z" q, T - { # J, B0 t: l0 S2 k4 |
- errors++; # C, F, ]( v# i: g
- }
- V7 a2 A+ t% H1 |' x - }while (!ackReceived && (errors < 0x0A));
3 G8 i! A+ p# s. M+ O& y - ( T6 y7 S- p. G+ }/ S; ~7 v, E2 E( t
- if(errors >= 0x0A) ) o) ]/ @% \( c# I, P8 N
- { " L6 w/ }0 f! U" H0 G6 ~
- return errors;
4 C7 l* T( o+ g2 ~4 ^8 F+ ~ - } : G) }0 v: F/ `# P, ]: H; h" \+ E
- buf_ptr = buf; ) M8 s: h2 C# b. B
- size = sizeFile; 0 O( s6 C) R! Q1 L3 M7 T' j; Z
- blkNumber = 0x01; * F7 O! L; _" f, q _! b
-
4 }6 b# U f8 x" V2 o* @ - /*Here 1024 bytes package is used to send the packets */ : R2 h9 T- r: v0 p; M% q, z! H1 z
- while (size) 1 |' ]) z; u1 `* p* W( Z! q) e
- { * a6 I8 }8 x( q5 D+ l1 z6 i* @' Q6 \+ o
- /* Prepare next packet */
( r: O& W$ o0 j; H0 H4 ~" }# P+ U - Ymodem_PreparePacket(buf_ptr, &packet_data[0], blkNumber, size); % c8 K* `/ R T- I, q
- ackReceived = 0; # S6 k1 Y' G+ i% n- j/ v1 n1 M
- receivedC[0]= 0; 1 {3 h( C: |6 v% v6 t0 M4 d
- errors = 0;
- T6 B4 S& |, @6 G e - do Z* P, |! q, E: n# t
- {
, E* k1 I/ V0 C F8 l6 U- B. J - /* Send next packet */ + Q/ d4 M P6 ]( f7 D+ G
- if (size >= PACKET_1K_SIZE) ; f! L& |! {! h1 F, R( ?
- {
0 \( m2 \0 ?& ?% E! N6 R+ b - pktSize = PACKET_1K_SIZE; 8 W2 g! b2 g6 d
-
i. W5 H' ^& K1 E, E - }
7 R0 L$ }8 R7 @" i - else
; z9 J$ b" @; k" e* @: {$ K - {
* J2 m/ k( T# d1 a! {/ x - pktSize = PACKET_SIZE;
# e8 T; Y- _0 K1 E; U+ Z - }
) U! V# S. J7 z0 O - Ymodem_SendPacket(packet_data, pktSize + PACKET_HEADER);
" {$ |0 O1 @( M; x- } - /* Send CRC or Check Sum based on CRC16_F */
9 V$ i, f) v$ Z% o1 v" m - if (CRC16_F)
: N+ b$ c1 `! h& a9 d% u - { ! D) `. v2 p' z) ^
- tempCRC = Cal_CRC16(&packet_data[3], pktSize); 3 y( z* c% ~; k- J2 w- ^% e
- Send_Byte(tempCRC >> 8); . z) _1 k$ P+ A$ R+ S- S
- Send_Byte(tempCRC & 0xFF);
7 c, \ y& g% n* [- \1 v6 u7 E - } 3 V% p1 l9 ]* _
- else
F+ S0 `0 D2 M. ^) O% Q( ] - { , L: ^, T) ?6 v2 B1 Z4 z
- tempCheckSum = CalChecksum (&packet_data[3], pktSize); 4 s" p7 h) F' Z1 D: X C
- Send_Byte(tempCheckSum); $ x" W/ B& M7 e2 P8 c" N
- }
6 I% h$ P; E& e) a, O; E4 {# v - ) e! N5 l' Y3 ~' ~
- /* Wait for Ack */
1 u; ]' y5 n' p) M1 b& f8 B - if (Receive_Byte(&receivedC[0], 1000000) == 0) ; v% Q6 i9 p/ Y/ V: Z- R3 U5 E
- { if (receivedC[0] == ACK) 3 T1 j" g6 _. o$ K* q+ e6 ~
- { $ [+ D, m1 N# l+ Q# O- O" [
- ackReceived = 1; 2 u" M B7 k1 D' C* r; W
- if (size > pktSize)
4 {' W+ n$ ?8 q - {
. k" s) J/ b, |3 X - buf_ptr += pktSize; & ?9 Z& W! B6 |5 O2 n/ ]# W
- size -= pktSize;
" |$ K s, r9 T0 y - if (blkNumber == (USER_FLASH_SIZE/1024)) s( p( i9 S2 m
- { " A' g) o* K; O4 }7 G
- return 0xFF; /* error */ - O/ R' U" U5 X+ b9 ]
- } L& U8 r7 h2 {6 Q- f9 M6 N
- else
4 d u4 D$ B3 Q+ b: y - { ! {. H: d/ y7 a$ s
- blkNumber++;
. p M/ ^9 ]4 Y) c% h - }
; P# c8 c) |8 u' z - }
% X. R7 @$ r" ~+ M - else 6 v F \- O) X" ~4 e- K
- {
: u5 [& K* u m3 R! O& a4 {8 U" v - buf_ptr += pktSize;
+ h7 ]1 a) |7 X% i: _ - size = 0;
5 |) j; s+ k9 A! v - } & j9 Y, P' V5 b6 ?! F+ `: f
- } ; V$ ~9 b! Y' S7 C- S
- } * Z& R4 |: z: X$ q: S4 u2 j9 V' i
- else 8 q: ~8 a8 C9 u8 K
- { F u9 A8 t5 N
- errors++;
; L" c9 Z6 s0 E! E2 n8 E2 Y - }
7 C! y8 n) q5 p, F( Y! { - }while(!ackReceived && (errors < 0x0A)); ! w; ?7 F4 e5 T5 N# G
-
3 b. j( ^3 `& b/ B$ y - /* Resend packet if NAK for acount of 10 else end of commuincation */ 0 }$ n/ O+ G U, ^6 l4 R
- if (errors >= 0x0A)
) _7 n2 P# s' E+ O! V8 ^ - {
* [8 l0 H2 x* g1 U& A - return errors; . g" \% `4 z0 Z1 b! Z
- }
$ ?' w- f3 M7 I$ F8 `+ c1 \$ R6 E' d$ q& x - Z5 Z- e$ t# Y5 p0 E$ W2 z! o+ v3 i; w
- } 8 v$ ~) k9 o* L& y* L
- ackReceived = 0; - |# f, ]+ b! j6 r% U8 X
- receivedC[0] = 0x00;
; L. R7 L# I. @$ G - receivedC[1] = 0x00;
5 |/ S/ Q+ h& h1 k4 J+ b0 B! ` - errors = 0; ( M9 Y" w+ W# t6 K v; g% {% z3 ^7 i1 s7 h
- do : m1 L; N$ B0 H0 u( x* }+ h, g
- {
9 s) L8 v. S& P& [. w2 V - Send_Byte(EOT); 6 N8 U& M7 B( J
- /* Send (EOT); */
% L+ ^* M6 J' L( a1 l& t# U: P - /* Wait for Ack */ ! U+ h2 [ T% l0 S! w6 a
- receivedC[0] = USART_ReceiveData(USART1); # [: ^- `3 J% A6 ~! t. m1 `
- if (receivedC[0] == ACK) - ^% W, a0 U( X1 _9 {' n) y5 g
- {
. p: h' p1 Z( \* b7 d; M* N - ackReceived = 1;
4 C M+ u2 o7 S% q3 t8 q# l9 r - }
7 Z, y' l ?1 X, C$ w -
$ p" Y2 I3 X* |) q( a; a* p$ P - else & f) U$ f, P# F& l5 N) J5 ~
- {
% `+ j* E9 {! j - errors++; : M- _) H6 r1 {8 `1 S
- }
1 A/ w7 @. [0 u0 s1 [9 P - /* Clear Overrun flag of the USART2 */ 8 x g! @4 V. `& w* K
- USART_ClearFlag(USART1, USART_FLAG_ORE); 3 `& {" J: b$ [* Q7 C9 _* V
- }while (!ackReceived && (errors < 0x0A)); 6 R* c( k% `$ z4 n9 ^1 T9 \7 X' _
- % j% X n7 c( X; h
- if(errors >= 0x0A)
' j* V" W4 s& i9 d+ a. A - {
! H# [9 S2 l! v7 |3 U - return errors;
' s1 v4 \5 Q" ^ - } ' v0 J8 s- g6 r
-
7 X- H# z' w& @: ~ - /*Last packet preparation */ * }1 }0 l7 E9 T4 h: O2 \
- ackReceived = 0;
5 V& V; X5 v7 T7 j. V7 p/ `( @ - receivedC[0] = 0x00; 1 v) w) [' B5 W. U( ]% k
- receivedC[1] = 0x00; ; @/ s7 W* V3 L
- errors = 0;
4 F' N8 N0 `$ w$ N" m - % Y+ p% s! L2 `2 `, `& B
- packet_data[0] = SOH;
8 L T- N6 K7 u2 E$ g - packet_data[1] = 0;
- I! P z3 z) i3 d: y) w4 A - packet_data [2] = 0xFF;
4 `, c" N. V6 G$ s3 I -
( Z1 _* b8 B" n, }* q. C - for(i = PACKET_HEADER; i < (PACKET_SIZE + PACKET_HEADER); i++) . `* g. J5 ~' w Y# ^ f
- { 0 z4 D& t }, ]! U \8 h7 q2 b
- packet_data [i] = 0x00;
7 y' x) F2 `! B. b - } ) h! R. N8 d# ?- y
- " V0 \1 ?; m0 H, z$ p: ]
- do
Q% n( O& _4 T - {
% `6 h0 F4 R3 e& f, ? - /* Send Packet */
0 K( }3 T% J6 x: \. ~7 ? \ - Ymodem_SendPacket(packet_data, PACKET_SIZE + PACKET_HEADER);
: o+ u+ q- x' |: J' _; R' c/ z9 P -
+ ^3 ^" S2 ^( H# m+ X% z0 o - /* Send CRC or Check Sum based on CRC16_F */ # l8 J9 S5 K5 p q1 t
- tempCRC = Cal_CRC16(&packet_data[3],PACKET_SIZE); 8 d' P: \. r& `8 V2 U
- Send_Byte(tempCRC >> 8);
' ]! y3 c5 p+ b9 D - Send_Byte(tempCRC & 0xFF);
) i) y/ u& c+ n& Q3 \1 S# n* h+ m -
1 @% |" l# l1 b" B - /* Wait for Ack and 'C' */ 1 W% c, A% l* T6 J6 X
- if (Receive_Byte(&receivedC[1], 1000000) == 0)
/ `& \- O* K z: S+ j - { 1 U1 u! @5 d) S, v$ A
- if (receivedC[1] == ACK)
% j/ e6 }3 ]9 x& z, q0 u. M0 ^) d. I0 ] - { . {0 Y# _7 l8 @: G
- /* Packet transfered correctly */
/ B+ d7 Y7 u: I+ k! { - ackReceived = 1;
! S% Q/ I! c$ B7 x6 S- i u! f - } 1 L! n8 f4 o6 g d8 N
- }
8 \, w# U9 V7 p' c - else
+ m- S( ?, y4 P1 G* Z+ a - { + j# Y5 w; N, y5 f4 Z
- errors++;
/ d& k9 l5 {; D: | - }
7 o; d, B; P; f. P6 n9 N: o - }while (!ackReceived && (errors < 0x0A)); 5 Y. ~) }, s# Z' `
- " J% p: |/ g' t& P
- /*Resend packet if NAK for a count of10 else end of commuincation */
8 ~% V2 }& P0 C- b; ]2 B# W) {) L - if(errors >= 0x0A) 1 [' J3 P+ g$ B, t5 S% K& U% N
- { $ s+ E* v. c5 d) @: x
- return errors;
+ |3 ~- i- H+ G& b% m, ^2 s - }
" d. i( k! t5 ]: M - receivedC[0] = 0x00;
0 h* ^1 \" a5 r6 K+ ?9 a. o3 [ - do
5 `0 |, T5 q* U& A* ~. U - {
5 U- {# O2 K5 e1 a, ~ - Send_Byte(EOT); * {0 b5 x/ C9 r( a0 \
- /* Send (EOT); */ 5 n, ?2 s9 h2 {- {4 c* Y
- /* Wait for Ack */
8 s' R X+ W+ s/ i0 d" y - if ((Receive_Byte(&receivedC[0], 1000000) == 0) && receivedC[0] == ACK) 3 s5 N% ?) N/ {, m! k% o# g! U
- {
, ~% M# m: i+ P( E" a1 h# l" O - ackReceived = 1; - {# e4 E0 r. t2 c
- }
8 m V0 I$ g' [1 `. } - ( v- a- Z8 n+ O* {$ Q- A
- else " U: M( K& \0 o; M3 K
- {
: ^+ b+ F; I. X" e - errors++;
+ z U7 B9 f8 p7 R - }
6 Q3 m# {# K P0 h! J - /* Clear Overrun flag of the USART2 */ ) T' @4 o& k' A0 d) p9 A" V5 _, I. Q
- USART_ClearFlag(USART1, USART_FLAG_ORE); ! u* k, n; D7 j- A
- }while (!ackReceived && (errors < 0x0A));
4 _5 \: n9 H3 o! S: k; C5 e- }* g - - A5 B+ m2 H8 a0 b) H
- if(errors >= 0x0A) 2 `( n! o* g) U" O a8 w
- {
" {, u9 ?$ g, P3 H, q0 M ~ - return errors; 9 f, |! s' w' u9 t
- }
! w! w6 T' R; g - return 0; /* file trasmitted successfully */ / s" H! J, D! C* G: C3 M1 K6 _, O% u
- }
+ d' S2 x$ K' @8 E - ( Q, k; |) j3 Y, b
- /**
* R4 r0 }9 P- t - *@} * u- q0 o$ Q7 ]$ z* w7 L
- */ : O- A" G3 c9 |- T7 y3 N' T7 n
- ' o) e& _7 o8 `5 B7 t0 T( [
- /************************ (C) COPYRIGHTSTMicroelectronics *****END OF FILE****/
复制代码然后就没有然后了,如果你还要然后可以博客下载完整工程看看。。(BY MetalSeed)
) q6 _, x# r- D( w- d |
谢谢版主提供教程资料!