一直以来都想搞个寄存器配置版本的ETH,最近时间充裕,花了近2周,昨天终于实现了以太网的连接,上图
5 x% f4 z) v4 z' |8 W& Y R! x. Y/ o5 G8 J% G' A- V. g
! h8 P6 v( m) E) J* d
7 s# y% P0 x& ~/ G# t
+ t# d7 }- E, ^% b* o 这是打印结果6 U/ f4 ?1 S7 U
下面详细说明一下7 u- h |0 {1 B- g& s) @3 B
首先实现lan8742的驱动
" K8 L) O& K: c) H: G+ u) N% s- /* Ethernet pins configuration ************************************************/8 H' c( O; a6 ~1 J. Y
- /*
k7 D/ N8 r9 A) e W - RMII_REF_CLK ----------------------> PA1 L. @2 m3 j. ]3 }4 q3 P6 A
- RMII_MDIO -------------------------> PA2
! w' P8 T) ?$ m8 q& ? - RMII_MDC --------------------------> PC1
" N( j8 l* w3 ]( J - RMII_MII_CRS_DV -------------------> PA7: u! t, x* Y& z. X: P+ P* V7 Z
- RMII_MII_RXD0 ---------------------> PC4
, h7 e. Q) M8 z2 a7 V0 h# @ - RMII_MII_RXD1 ---------------------> PC5
3 G3 u2 d! y6 \ - RMII_MII_RXER ---------------------> PG2/PD57 i0 ? P( r" ~ A( J
- RMII_MII_TX_EN --------------------> PG11
2 m, H7 R* J6 w# |6 M - RMII_MII_TXD0 ---------------------> PG13
8 _8 S. @& _5 D# j9 B - RMII_MII_TXD1 ---------------------> PG14. b9 ` }0 l, m0 N# M
- */
" R6 w w5 l/ }5 m - *(uint32_t *)0x40023830 |= 0x45; //使能PORTA\C\G时钟 0x4d,ACDG! U2 F5 ~, R* a; E+ I, a3 ^- T
- *(uint32_t *)0x40023830 |= 0xf000000; //使能ETH,TX,RX,MAC时钟 / P' N& z4 @# {! j, i, \+ _- J
- GPIO_Set(GPIOA,PIN1|PIN2|PIN7,GPIO_MODE_AF,GPIO_OTYPE_PP,GPIO_SPEED_100M,GPIO_PUPD_NONE); //PB3,PB4设置
* N3 W1 y' ~3 U- t - GPIO_AF_Set(GPIOA,1,11); //PA1,AF11
( d( \" S# _0 S7 G. ^- p! w - GPIO_AF_Set(GPIOA,2,11); //PA2,AF11! s! w5 X! M7 g7 K- s; Z
- GPIO_AF_Set(GPIOA,7,11); //PA7,AF11
* m+ h( u* p# {3 F* a! q9 `4 d9 U$ h - GPIO_Set(GPIOC,PIN1|PIN4|PIN5,GPIO_MODE_AF,GPIO_OTYPE_PP,GPIO_SPEED_100M,GPIO_PUPD_NONE); //PB3,PB4设置
0 k6 h) o8 K. W2 o" d - GPIO_AF_Set(GPIOC,1,11); //PC1,AF11, @9 m* G" v) C5 I; i |" h& R$ U
- GPIO_AF_Set(GPIOC,4,11); //PC4,AF11" b3 B! H( K" o1 d2 M
- GPIO_AF_Set(GPIOC,5,11); //PC5,AF11
$ Z4 ^: v+ r# O - GPIO_Set(GPIOD,PIN5,GPIO_MODE_AF,GPIO_OTYPE_PP,GPIO_SPEED_100M,GPIO_PUPD_NONE); //PB3,PB4设置
. T9 a1 Y% B; \ - GPIO_AF_Set(GPIOD,5,11); //PD5,AF116 `0 ? B7 C& e( i. B! Z
- GPIO_Set(GPIOG,PIN2|PIN11|PIN13|PIN14,GPIO_MODE_AF,GPIO_OTYPE_PP,GPIO_SPEED_100M,GPIO_PUPD_NONE); //PB3,PB4设置
+ P, n7 N0 q# d# n2 r# h - GPIO_AF_Set(GPIOG,2,11); //PG2,AF11
0 l- z0 d5 u U' R* h - GPIO_AF_Set(GPIOG,11,11); //PG11,AF11 Y* K# W* n) F \4 p7 c
- GPIO_AF_Set(GPIOG,13,11); //PG13,AF11
+ n f. M/ ^# H4 G0 d8 D4 o - GPIO_AF_Set(GPIOG,14,11); //PG14,AF11
2 Q3 q$ v5 A V' H" \
1 _/ y. t2 O ]/ t! b- MY_NVIC_Init(0,0,ETH_IRQn,2); //配置ETH中的分组
复制代码 然后实现LAN8742寄存器的配置
( l! k) F3 K5 |( V) F; {- *(uint32_t *)0x40023830 |= 0x400000;/ {( E* M2 R& @9 _
- RCC->AHB1RSTR |= 0x02000000;; K! U0 Q1 {: i# G1 Y% [) ~
- /* Enable SYSCFG Clock */
, F* t* Q' F6 A1 H* f - *(uint32_t *)0x40023844 |= 0x4000;
; F% s8 k9 K+ j6 O - SYSCFG->PMC &= ~(SYSCFG_PMC_MII_RMII_SEL);
8 U! n+ v" u, f; c' F: t" V - SYSCFG->PMC |= 0x800000;//RMII
$ |6 G+ T: ]% A) A: O; r - RCC->AHB1RSTR &= ~ 0x02000000;
' c1 R+ W1 S4 M+ i9 ~ - ETH->DMABMR |= 0x1; //software reset
. V/ B. D& k, x* R7 { - while (ETH->DMABMR & ETH_DMABMR_SR);
9 L* @' E8 \& P8 o8 S& x - / i* w) f' J3 A/ T% r
- /* Write to ETHERNET MAC MIIAR: Configure the ETHERNET CSR Clock Range */
' J& p X4 L. u% f F" Y3 Q - ETH->MACMIIAR = (uint32_t)(1<<4);% j8 I. G* ]$ T% {. U$ @1 n
- write_PHY(PHY_BCR, PHY_RESET);
+ x8 h5 f/ u6 G - /* 等待复位完成 */. M/ q0 W% a3 R3 s
- for (tout = 0; tout < 0x10000; tout++)0 Y0 @) i0 @' J: L7 s: _6 k
- {+ l& H( H- O' ]
- read_PHY (PHY_BSR,®v);+ g! t% j% b; k' B) Q9 g
- if (!(regv & PHY_LINKED_STATUS))
/ n- D H; ? e3 n: M' @ b( x - {, ~0 D% A9 g4 l) P
- /* 复位完成 */; g- F& ^7 Q# B& }2 j
- printf("2. Reset Complete\r\n");
0 R/ T" @+ E3 O' c A- Q - break;
5 ?& P3 p0 e) z* C - } 5 ?" W1 ^ D' i. O
- }
8 d+ N: t- V7 X4 H- c& J - write_PHY(PHY_BCR, PHY_AUTONEGOTIATION);
( f% i H9 n; U3 B4 N2 J - for (tout = 0; tout < 0x10000; tout++)
9 u) h4 X, o( U - {
/ @! ?- s T! j; [( b; V - read_PHY (PHY_BSR,®v);8 W- d% q1 R9 t3 p* x
- if (!(regv & PHY_AUTONEGO_COMPLETE))
2 m4 E8 u7 W5 v" [ - {7 i& l" ]9 W$ k6 Y
- /* 复位完成 */
8 S3 x4 X! J( _1 d! W7 G - printf("3. Auto-Negotiation Complete\r\n");
o+ h1 d; s7 t9 D; P - break;) P6 D9 J+ U* s. m* [3 W; F
- } / @' }( e! h/ z( U6 M: N
- }! X" _) {3 H0 k2 _6 a
- for (tout = 0; tout < 0x1000; tout++);
. O( J9 ], w' n3 d! Z, t - read_PHY (PHY_SR,®v);
: _2 o% `' Q; |4 p; ^% w4 L. J1 w - printf("%x\r\n",regv);4 s& ?, N6 S2 [: f- o) Y; {6 o
- /* Configure the MAC with the Duplex Mode fixed by the auto-negotiation process */% k) y9 s' ~$ Q5 T" Y" i8 i* {
- if((regv & PHY_DUPLEX_STATUS) != (uint32_t)RESET)
- Q7 p5 N. K1 f - {
9 x* S% a1 ]# a( [9 ^2 f - /* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
' h+ u* V, W6 a$ M5 M- S& x - printf("4. Full-duplex connection\r\n"); 4 J4 u0 ]1 |% w+ J9 k1 I- b
- phyreg |= ETH_MODE_FULLDUPLEX;/ u* S! c* v" }; t! i
- }9 x2 S- `# v. g
- else4 a1 _0 [7 G4 Y# @+ \/ S
- {
% g1 t! ~ [' `! m3 `0 s" e( h/ C+ d - /* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */. f2 y% E# h" [* G0 B# j
- printf("4. half-duplex connection\r\n");
) s' `: v& U0 K( c5 i9 e - phyreg |= ETH_MODE_HALFDUPLEX;
2 P# v4 \" e" e# {3 ?1 G$ f3 a$ ?0 X - }
5 c9 j1 N& a0 u: o# K! _7 C$ y - if((regv & PHY_SPEED_STATUS) != (uint32_t)RESET)
! w, Q, ]# }7 N) m - {7 t" B0 U- l3 R1 @+ z) ~
- /* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
" F$ N6 A! K9 {4 r' a P - printf("5. 10Mbps Mode\r\n");
8 }4 l! d) W8 S s - phyreg |= ETH_SPEED_10M;
3 f# P r( A4 M( f+ c. A - }
0 q( p! f) s$ p - else+ K0 c3 g( Q3 g7 _9 N4 u
- {
" V* ? `; f4 u: v) d - /* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */
1 @) F+ Q3 M5 ~. ?. _ - printf("5. 100Mbps Mode\r\n"); : H" }2 n: e5 i8 v6 {3 a
- phyreg |= ETH_SPEED_100M; ! Z/ n! }# D. F) j+ q
- }
# a# G$ s3 C2 a4 C - 4 X! _. N( b5 A" b
- /* Config MAC and DMA */
- e8 b" j. J. Q" y3 q" F6 K" [* f - ETH_MACDMAConfig(heth, phyreg);
复制代码 下面是实现读写的函数
w4 E2 R7 ?$ i% s3 U- void write_PHY (uint32_t PhyReg, uint16_t RegValue)1 P8 l* C( n7 m3 v# [
- {
. J% U3 ~! P. l! h- j8 s5 ~7 ~7 ` - uint32_t tout;: K0 c3 K' v, D" O2 P* z* Y/ g
- uint32_t tmpreg = 0;7 U) p$ V7 X8 p! i% S0 G/ G& b( V, G
& D* m5 t4 T' V0 r" X- ETH->MACMIIDR = (uint16_t)RegValue;
( l" L& x/ f) k2 h8 o9 W
1 h8 u9 J! }8 j6 [
1 J F( \ v% D, O- `- /* Get the ETHERNET MACMIIAR value */# M1 i% x2 g- X* V9 D* y: z5 c) L
- tmpreg = ETH->MACMIIAR;3 K' V, _4 i, Y d
- 4 g4 |- V* d% R$ ^
- /* Keep only the CSR Clock Range CR[2:0] bits value */
0 Y. f8 n% ~- z - tmpreg &= ~ETH_MACMIIAR_CR_MASK;
$ H( N0 o5 B$ x# u) j -
. @: L5 s* a4 {( E! J - /* Prepare the MII register address value */
3 f& t6 u/ X5 B, P9 {* a Y - tmpreg |=(((uint32_t)(LAN8742A_PHY_ADDRESS << 11)) & ETH_MACMIIAR_PA); /* Set the PHY device address */
, ]8 v: g i, y( J1 y: R% J - tmpreg |=(((uint32_t)PhyReg<<6) & ETH_MACMIIAR_MR); /* Set the PHY register address */4 [/ A1 F; o. J2 g, m# w
- tmpreg |= ETH_MACMIIAR_MW; /* Set the write mode */
: K# V6 s) s/ ?3 A" o4 d0 i4 L - tmpreg |= ETH_MACMIIAR_MB; /* Set the MII Busy bit */
1 E& @) t' L. g1 G0 q3 w6 H& o - - z: m2 s6 I8 L7 L
- /* Write the result value into the MII Address register */2 g' m$ U; c0 n# D8 {2 W" x6 D
- ETH->MACMIIAR = tmpreg;# ^- T6 s+ ?" q+ l: A/ \ f1 L
- /* 等待操作完成,即等待MMAR_MB位被清零 */
6 M4 f. K% l9 A% S" M% L - tout = 0;
, i8 T" w6 d, [, P. u3 T - for (tout = 0; tout < MII_WR_TOUT; tout++) 3 T8 d6 F0 E, Y4 p J+ {4 n* K( n0 j
- {- K2 @" W, ?" u; Y7 `4 C
- if ((ETH->MACMIIAR & ETH_MACMIIAR_MB) == 0)
) f0 W3 `& w- [6 [" C - {7 B9 f- H: S6 z+ ?' d6 ^
- break;
% c* q/ o2 `. L* X! e0 h - }9 U2 s* \9 ~, c$ e
- }
# @: y; p l% r5 J- P! Y - }
& O L S& ? |; a
4 i: e. S# Y2 J1 ` R- void read_PHY (uint32_t PhyReg,uint32_t *RegValue) H/ O/ r1 j$ o$ U" V
- {6 }5 ?( p0 N, ]1 x
- uint32_t tout;+ k" J2 S0 G5 U8 G4 h. F: P
- uint32_t tmpreg = 0; ! F/ ?0 \; \+ y4 s7 A
- ; `) c8 o5 E+ F3 i
- tmpreg = ETH->MACMIIAR;: P& k- {% f# m0 {; u2 @
-
5 d2 D" C m$ y5 P8 y6 U - /* Keep only the CSR Clock Range CR[2:0] bits value */: @9 g8 r) p2 i6 x4 l9 H7 ]) I0 t
- tmpreg &= ~ETH_MACMIIAR_CR_MASK;( p) R: b } R2 |( \
- 0 f6 T9 s7 x$ j; B
- /* Prepare the MII address register value */3 _5 ?+ h2 O3 g$ W
- tmpreg |=(((uint32_t)(LAN8742A_PHY_ADDRESS << 11)) & ETH_MACMIIAR_PA); /* Set the PHY device address */, E# N$ b2 v& N7 [( |
- tmpreg |=(((uint32_t)PhyReg<<6) & ETH_MACMIIAR_MR); /* Set the PHY register address */
2 Y0 Z4 [4 ~0 e# w - tmpreg &= ~ETH_MACMIIAR_MW; /* Set the read mode *// ?/ Z( @1 s9 m$ ~% ^# [8 F. \) L
- tmpreg |= ETH_MACMIIAR_MB; /* Set the MII Busy bit */
, E3 \9 }( y3 J$ y: J9 Q, x) I - , ^6 I" Z( S+ o& a1 G1 I. p
- /* Write the result value into the MII Address register */% [2 q! e; ~. g% z* \ O
- ETH->MACMIIAR = tmpreg;8 c0 R3 X: Y# C4 S+ v
5 O; X- }# w9 N7 | g3 x- /* 等待操作完成,即等待MMAR_MB位被清零 */
! n3 x0 d( m. @6 {' M - tout = 0;. Z& C2 _. Q& h; p( ?
- for (tout = 0; tout < MII_RD_TOUT; tout++)
+ X. [" v$ w0 g! a4 s - {$ U) w8 [3 J7 U3 Q/ S- F0 x
- if ((ETH->MACMIIAR & ETH_MACMIIAR_MB) == 0) + E* g/ M1 V1 _- a/ w* \
- {9 p( v' M6 g/ D% F
- break;
% J4 v3 {+ i; l9 j2 A1 N2 J - } G6 u6 X: J+ N# d" c
- }! P0 w8 s0 U% R( e. |
- /* Get MACMIIDR value */0 N1 d2 G! V+ z9 e8 E9 K0 Q( ]. }
- *RegValue = (uint16_t)(ETH->MACMIIDR);. f7 u- x/ Z% S: c$ ^- G4 R0 s; p
- /* 从 PHY 中读取16bit的数据值 */
' ~& A, p' `6 w, U% ] - }
复制代码 保存可以正常运行,并且连上lan8742芯片
3 u0 ?' S9 D, K
% {% Y' e. V! I% G' s
5 ?4 m( b( l4 v- S6 I. A
下面开始移植lwp141,步骤就不说了,网上有 ' _; |/ } F# b6 T
" V% E" U( ] N9 g, G* P! Y9 @. J) d4 Q
' R! l& p# ^6 V2 D. i
# V0 v3 H. E+ N0 z; H9 I 直接给出代码' s) W! T k2 {! x. T' P. D* D
- static void low_level_init(struct netif *netif). V! M( ]( i2 n
- {
4 J9 G8 z( }& B) e+ \ - uint8_t macaddress[6]= { MAC_ADDR0, MAC_ADDR1, MAC_ADDR2, MAC_ADDR3, MAC_ADDR4, MAC_ADDR5 };, M$ j7 ^* m. L8 _/ f. L+ ?4 |
-
& Q/ A1 U) f' m" k - EthHandle.Instance = ETH;
2 z% G; Y2 }. p2 j - EthHandle.Init.MACAddr = macaddress;) r I: D. W R) U. P% f
- EthHandle.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE;
, L7 t' `) K' F8 X/ U - EthHandle.Init.Speed = ETH_SPEED_100M;
$ {' O: z( t( n$ |) K" ^1 Z - EthHandle.Init.DuplexMode = ETH_MODE_FULLDUPLEX;) I# c# d4 M7 O. @
- EthHandle.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII;9 w8 n y; R0 i
- EthHandle.Init.RxMode = ETH_RXINTERRUPT_MODE;
/ B3 I& N0 Q2 T+ P/ Z - EthHandle.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE;
9 z' ~' [# p( K: ?6 Q4 V - EthHandle.Init.PhyAddress = LAN8742A_PHY_ADDRESS;
( e: M u. w; I3 w - /* configure ethernet peripheral (GPIOs, clocks, MAC, DMA) */
* x, ?6 U6 ^. F: r# A - lan8742_init(&EthHandle);) }, d* i; h0 _4 D0 m
- /* Initialize Tx Descriptors list: Chain Mode */8 h2 _. u( ~0 t. v( V9 e& N% J
- HAL_ETH_DMATxDescListInit(&EthHandle, DMATxDscrTab, &Tx_Buff[0][0], ETH_TXBUFNB);# D$ |* u/ l4 G# Z8 w8 O* I
-
1 T. r. f. E+ U- j4 o$ ~' _ - /* Initialize Rx Descriptors list: Chain Mode */" O& a6 _3 W( I$ _$ ~: I- }; N
- HAL_ETH_DMARxDescListInit(&EthHandle, DMARxDscrTab, &Rx_Buff[0][0], ETH_RXBUFNB);- T- ^: Y$ g n$ J
-
, G# w. `' I0 i: |5 { - /* Set netif link flag */2 m% u% I8 r; K, E/ C c
- netif->flags |= NETIF_FLAG_LINK_UP;
% \2 n! D& }4 I# j$ c - /* set netif MAC hardware address length */
& B: y# b) [7 b7 i - netif->hwaddr_len = ETHARP_HWADDR_LEN;3 Q7 h1 h: @; F- c; V- y
- 5 z7 @0 Z8 C" w& u
- /* set netif MAC hardware address */. Y7 A0 k7 r0 ]
- netif->hwaddr[0] = MAC_ADDR0;
# ~* y9 _- Y6 }7 C: x l! K - netif->hwaddr[1] = MAC_ADDR1;
8 i9 [: J3 A4 c, X - netif->hwaddr[2] = MAC_ADDR2;
/ Z+ H% A" o& J6 \6 V - netif->hwaddr[3] = MAC_ADDR3;
( e4 m% m5 c) g6 q4 N5 ]8 j - netif->hwaddr[4] = MAC_ADDR4;, | d+ p: q& z! N# x
- netif->hwaddr[5] = MAC_ADDR5;
, p: f6 }. A. n+ C9 J - 0 }0 k4 y2 O8 d
- /* set netif maximum transfer unit */
4 U$ L M. p- g$ r - netif->mtu = 1500;
5 [5 E7 n# R0 U$ p% e/ l - 3 A5 k/ p6 d* V: ^& i v- N- A
- /* Accept broadcast address and ARP traffic */# E3 W/ ^( K, d( R) R6 p
- netif->flags |= NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;: \4 s. O: g- j! V4 O8 {' l
-
) }, P) w4 p7 P, v* W. u7 w - }
. g5 Y: m* m& d: i" |4 h* q7 ^ - err_t low_level_output(struct netif *netif, struct pbuf *p)
# ^( }) `* g4 M" n/ i - {9 s: F7 v/ \9 b0 `0 ?" [
- err_t errval;
* e6 E1 Y' J4 h# X" x - struct pbuf *q;
- `, s- W# }- c5 _9 o) F# ?- v - uint8_t *buffer = (uint8_t *)(EthHandle.TxDesc->Buffer1Addr);" H, p* u9 _: f
- __IO ETH_DMADescTypeDef *DmaTxDesc;
) U# H0 p+ v \ [2 ] - uint32_t framelength = 0;
, h# A8 L, }8 P5 { - uint32_t bufferoffset = 0;2 n% n6 A f) H" T+ [7 D2 g! \) S. w
- uint32_t byteslefttocopy = 0;: \' v7 u5 O7 U# W& {4 Y
- uint32_t payloadoffset = 0;
9 p/ s" T/ B5 n/ t \ K: n - ) d' c" D. F8 k! F
- DmaTxDesc = EthHandle.TxDesc;
; v3 m1 E8 g4 f+ ~" }! B6 u - bufferoffset = 0;+ w* h3 D" p7 J9 t
-
- B, l3 h) E; s! j8 g0 G1 H4 K9 g - /* copy frame from pbufs to driver buffers */
) g$ Y+ k8 S; A7 z+ K - for(q = p; q != NULL; q = q->next)
" {1 \! Z# n4 @6 V" z - {
8 p% t, {9 u& l* q! h - /* Is this buffer available? If not, goto error */- b& h# O) O8 ~8 q3 K- H
- if((DmaTxDesc->Status & ETH_DMATXDESC_OWN) != (uint32_t)RESET)
: [" v% Z: e$ j% C \ - {
4 c. O0 R5 B2 u) m - errval = ERR_USE;% W( V, W* V5 ]; N
- goto error;
( G a, o* E! B8 u& Z; Y/ p6 P - }; J$ ?6 R1 ~# G! D, `+ Q7 W; M
-
7 @" S# G1 X2 K% z( R1 I - /* Get bytes in current lwIP buffer */
2 j* h S, ]. r" Q - byteslefttocopy = q->len;
2 P* S9 [, T* \% s - payloadoffset = 0;$ h8 x% f& p$ ]3 F
-
$ c0 m$ `$ m; W - /* Check if the length of data to copy is bigger than Tx buffer size*/5 d( E5 b% O: r1 a$ X
- while( (byteslefttocopy + bufferoffset) > ETH_TX_BUF_SIZE )
+ z$ E( z! Y& Q6 x; r U0 h) K$ p - {
+ Z, K; Y3 w' ~ - /* Copy data to Tx buffer*/
& M5 q" s0 y9 w8 I5 \ - memcpy( (uint8_t*)((uint8_t*)buffer + bufferoffset), (uint8_t*)((uint8_t*)q->payload + payloadoffset), (ETH_TX_BUF_SIZE - bufferoffset) );( w7 g3 \ y3 w# ?8 W" C7 [, g2 d
-
) |' z1 D: A+ l+ m! c, x9 P - /* Point to next descriptor */
7 c; a$ H9 z ]7 {0 q( X0 D/ b- a - DmaTxDesc = (ETH_DMADescTypeDef *)(DmaTxDesc->Buffer2NextDescAddr);! J7 B. n/ T! Y, w) G& J7 @4 X# `
-
# p4 k/ b" `; i0 I9 ? - /* Check if the buffer is available */& T7 b* |4 O0 e" n% k! Y: @
- if((DmaTxDesc->Status & ETH_DMATXDESC_OWN) != (uint32_t)RESET)
/ P }7 j o. K( F& O1 p& C - {* g3 K. Y' S/ T! w2 i8 Y8 i M' u
- errval = ERR_USE;0 X, Q: M( U ~/ z9 {
- goto error;7 W- j( q! F7 l; H3 d1 W w
- }, i X, x% y. O* ~
-
; Y" y% U$ I/ k- E1 I, c: h - buffer = (uint8_t *)(DmaTxDesc->Buffer1Addr); C: ]! L( M `8 a. M
- 1 v6 G* S7 V9 p
- byteslefttocopy = byteslefttocopy - (ETH_TX_BUF_SIZE - bufferoffset);
" J! Y S8 d# r/ h5 P3 ^ - payloadoffset = payloadoffset + (ETH_TX_BUF_SIZE - bufferoffset);3 g! g/ c6 u- H5 I
- framelength = framelength + (ETH_TX_BUF_SIZE - bufferoffset);
) B- J2 s! h# S% o8 i - bufferoffset = 0;. c0 g; N% k- m5 k1 n
- }4 K3 t" a5 t/ W1 U' ^
-
" r4 ]" I7 {. z& q" ~ - /* Copy the remaining bytes */7 e8 Q8 O4 X) f' n
- memcpy( (uint8_t*)((uint8_t*)buffer + bufferoffset), (uint8_t*)((uint8_t*)q->payload + payloadoffset), byteslefttocopy );/ K' _! D. D& P- p7 M& A
- bufferoffset = bufferoffset + byteslefttocopy;. h6 }$ X! ?0 o+ G g
- framelength = framelength + byteslefttocopy;9 J. v1 S& Y+ z7 O
- }3 c y+ W2 ?" _; V% H7 R1 I
- , [; _. T/ C7 f2 I
- /* Clean and Invalidate data cache */
; y6 R' f' _/ t& [ i3 ~ - SCB_CleanInvalidateDCache ();
5 |. O2 H2 @" l# ~8 a6 w - /* Prepare transmit descriptors to give to DMA */ + X+ H* y" g, e9 o2 @/ Z$ p: t
- HAL_ETH_TransmitFrame(&EthHandle, framelength);7 z i) j4 ]5 Q& f
-
' D+ M' U5 f* T( g# ^/ G - errval = ERR_OK;
* ~: K! ^. B& y. b5 [/ t K - ; Y, P! M: I8 |5 v0 l& s
- error:) v, F j B# v1 V, ` W- d
-
$ ~% k( m/ h7 i - /* When Transmit Underflow flag is set, clear it and issue a Transmit Poll Demand to resume transmission */0 F- e3 C2 S* n3 Q l( A
- if ((EthHandle.Instance->DMASR & ETH_DMASR_TUS) != (uint32_t)RESET)1 e$ D4 t9 X, J% U5 c- F7 a4 J
- {
' [' `( `7 |) q) s E4 ~ - /* Clear TUS ETHERNET DMA flag */ v9 L0 r- {* x6 u) f) R0 K
- EthHandle.Instance->DMASR = ETH_DMASR_TUS;1 \' l' Q8 \. {" f9 A' F
- $ t& W6 N: q' ~/ S: Y6 D. S1 g6 ?
- /* Resume DMA transmission*/
+ ]! C( O! Z$ @& K - EthHandle.Instance->DMATPDR = 0;
, y" u' H$ _. G$ R9 W1 }4 C - }
) t& `/ w3 O. Q, T3 j0 U* ]: P - return errval;$ U- c, _% c4 E6 u, I
- }( G- q: E1 Y2 `2 b& f- _- ]$ R
7 _* _: [# Q# _: q: g- /**
5 q6 X0 {( z$ W& Z5 n& x - * [url=home.php?mod=space&uid=159083]@brief[/url] Should allocate a pbuf and transfer the bytes of the incoming
7 Z0 g/ V. n6 q5 ?; i% F - * packet from the interface into the pbuf.
9 P. @3 \! l& h& g0 Y* N - *
! Y; s( D% }3 `0 y - * @param netif the lwip network interface structure for this ethernetif ]& C, `& ^/ G
- * [url=home.php?mod=space&uid=784970]@return[/url] a pbuf filled with the received packet (including MAC header)
" E$ r; f! Y6 H0 d6 T, q+ S7 r, a - * NULL on memory error
6 R) h$ _' n. B# k - */
7 a( }& o& m) U% X. m6 n - struct pbuf * low_level_input(struct netif *netif)/ H+ I5 E$ G1 b; q) }* x! z
- {
/ }; E% F6 N* O+ J0 |( w - struct pbuf *p = NULL, *q = NULL;
% S: K* ~! q. _5 s. o$ c" W - uint16_t len = 0;% c4 v" ~0 _0 X" X6 o. N/ w
- uint8_t *buffer;
) L E& B2 }. s - __IO ETH_DMADescTypeDef *dmarxdesc;7 s6 J e9 h% r; t. j L8 z2 `5 y
- uint32_t bufferoffset = 0;
! u a- X: m( g" f3 {- j1 @ - uint32_t payloadoffset = 0;
( {7 A( k6 _) }! j# { - uint32_t byteslefttocopy = 0;% h) A# `* A( i& C g3 }, _3 e3 W: k
- uint32_t i=0;
9 x; f9 q' f) a \* f - & F8 l9 r- ?- g3 g S
- /* get received frame */4 u) c0 O8 ?8 I0 p& Q$ _
- if(ETH_GetReceivedFrame(&EthHandle) != 0)
( ^4 _. [9 y2 F, g; Y5 q6 }3 ? - return NULL;3 L, |2 I5 u: w8 g; e! l
-
5 l) l2 |- }' D [1 t1 C - /* Obtain the size of the packet and put it into the "len" variable. */
! X0 ^3 q* N; P! f/ ] - len = EthHandle.RxFrameInfos.length;: ~" n! v4 {& \
- buffer = (uint8_t *)EthHandle.RxFrameInfos.buffer;3 g5 T+ a2 `8 X$ V8 k1 U4 P( E
-
$ l: h. w! Z' X% D( L9 y - if (len > 0)0 s/ |+ P/ {8 p9 F2 J, e: l
- {- p* _6 [- F# J
- /* We allocate a pbuf chain of pbufs from the Lwip buffer pool */
- Q, Y' [5 U; {* I. F* I - p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
/ m/ P$ o: L" K6 r - printf("recv is ok\r\n");
/ c) q# @4 s5 u2 h; `; s0 z& H - }; C5 i0 _: N2 P4 m A* q
- ) z2 z: ~6 j7 B- I& u
- /* Clean and Invalidate data cache */
+ i: Z2 ^) A+ r - SCB_CleanInvalidateDCache ();
+ j2 }% g2 T% t0 J -
8 D/ d, j% ]6 B' `3 c \ - if (p != NULL)
3 A, @" f* G( C! k - {
2 _8 m d. v5 z4 g6 t% {! i - dmarxdesc = EthHandle.RxFrameInfos.FSRxDesc;1 y7 b* p5 E+ a
- bufferoffset = 0;
$ t8 U9 |& {4 M. Y3 F$ s. M! R -
e% L/ t9 z% N - for(q = p; q != NULL; q = q->next)# P. R( P% e& ~- z+ y, o
- {% D7 Y4 a8 L3 T0 O3 \ T) Q
- byteslefttocopy = q->len;
; l" g! n1 H- H1 G6 J; r3 w' l - payloadoffset = 0;
' v$ p+ R- n2 b' O3 |; b+ V' i* e - 2 y) D; w, H2 x% E9 I+ x6 c* N( \
- /* Check if the length of bytes to copy in current pbuf is bigger than Rx buffer size */+ A x& k+ M9 U; K
- while( (byteslefttocopy + bufferoffset) > ETH_RX_BUF_SIZE )4 y3 i& a! f. k8 S) x- N( R q
- {
" l/ o Q' ~/ ?& i% \ - /* Copy data to pbuf */
! G9 `3 v* y( Y( w1 V - memcpy( (uint8_t*)((uint8_t*)q->payload + payloadoffset), (uint8_t*)((uint8_t*)buffer + bufferoffset), (ETH_RX_BUF_SIZE - bufferoffset));
6 P2 e* R" G2 o' }0 E0 m, j -
- Q- \, o, E$ X, c - /* Point to next descriptor */
9 P1 i4 C% H$ i, ]2 K* h - dmarxdesc = (ETH_DMADescTypeDef *)(dmarxdesc->Buffer2NextDescAddr);
4 p& f0 G* }2 I - buffer = (uint8_t *)(dmarxdesc->Buffer1Addr);) _; h U3 x: B. \) c
-
6 |1 v, r* r* T n - byteslefttocopy = byteslefttocopy - (ETH_RX_BUF_SIZE - bufferoffset);
& J8 p5 |2 c/ Y# k( p6 R+ |9 \8 } - payloadoffset = payloadoffset + (ETH_RX_BUF_SIZE - bufferoffset);& l( V& G8 n& H5 I
- bufferoffset = 0;; E7 V' L2 a2 i6 c' o8 q# J
- }; z1 T5 N @% H8 q9 M
- ) r1 o1 [+ t5 o t. g
- /* Copy remaining data in pbuf */
/ z% O, R0 L3 F. z2 ] - memcpy( (uint8_t*)((uint8_t*)q->payload + payloadoffset), (uint8_t*)((uint8_t*)buffer + bufferoffset), byteslefttocopy);
9 O6 H" h! ~" M - bufferoffset = bufferoffset + byteslefttocopy;0 X: P* S/ U$ g2 O# E% B
- } G. g. I/ O+ V2 l9 O3 h9 O/ h
- }
5 @! z2 ?% k1 T5 L" M6 \4 Z - ) L- V3 _/ U- n0 y2 a$ d& G: w
- /* Release descriptors to DMA */
8 S9 g$ u1 V, {: A - /* Point to first descriptor */( T" E6 ?- y/ z: T$ j9 {7 r
- dmarxdesc = EthHandle.RxFrameInfos.FSRxDesc;
) O7 ~4 c5 L1 J# x! ^ { - /* Set Own bit in Rx descriptors: gives the buffers back to DMA */
i, z; n8 h7 T - for (i=0; i< EthHandle.RxFrameInfos.SegCount; i++), F/ k u6 o* I# H* B( N) d
- { 6 l; z* x1 j9 k$ ~6 e
- dmarxdesc->Status |= ETH_DMARXDESC_OWN;
) S% \. K7 D% u0 n) X+ x: } - dmarxdesc = (ETH_DMADescTypeDef *)(dmarxdesc->Buffer2NextDescAddr);
0 F b, Y1 d8 ?. K2 F% ^9 A, A - }
* y2 W$ ?9 O; I -
9 S% O6 z8 Z' ? - /* Clear Segment_Count */6 g6 G, Y; T* {
- EthHandle.RxFrameInfos.SegCount =0;' x! t* Q, A- S. @) J4 p# t$ a F( U
-
1 Z/ `# x: o, ? - /* When Rx Buffer unavailable flag is set: clear it and resume reception */1 U* p( i7 @6 ]. d+ W3 l" v+ q' C
- if ((EthHandle.Instance->DMASR & ETH_DMASR_RBUS) != (uint32_t)RESET)
' N6 u+ A. q2 B4 f, M* K3 M0 i - {
7 Y% C& h4 ]9 a+ |- u - /* Clear RBUS ETHERNET DMA flag */
; U W: V) f, y* X - EthHandle.Instance->DMASR = ETH_DMASR_RBUS;: o$ d( v: R" a, h+ K$ U
- /* Resume DMA reception */
, `: \1 r- v+ [ - EthHandle.Instance->DMARPDR = 0;
. S& v1 l. n) O# A! r5 Q8 b - }
% o: l7 N8 h; q# R5 R6 H - return p;
% A: n% b# _3 G1 G - }
1 J1 M% c) _& L: O. \4 j - void ethernetif_input( void const * argument ): ]1 ?" B# S7 A; K) G% m( }; Y
- {
$ Q0 T# y/ P7 \. m - struct pbuf *p;" _4 O% A& s7 n, ?5 K' l$ m; E
- struct netif *netif = (struct netif *) argument;- ]0 i6 U. ], `) P" |
-
1 D* ~' C2 C! `9 h! \. ^ -
( K* u+ D& `4 K1 {( R0 T. q/ D - ) v- C% f2 ]* C. F' s0 F; y% T
- 2 P3 w. f: L) f
- p = low_level_input( netif );
. w# l- N4 ?; {# e! @! e( e - if (p != NULL)! q4 u# @% ] J9 H! w, ?
- {
( i1 @2 Q2 [- O - if (netif->input( p, netif) != ERR_OK )' I) y/ b. E5 v6 E, G0 x
- {
) t6 v' n% s6 E( P6 ^ - LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
" |% S g3 N# B# x - pbuf_free(p);1 j! @0 K( _6 m( w; O
- }' ?0 {1 Z9 X8 Q& M$ q! R. K
- }; H0 c5 E4 p# O! i1 H" E/ |. d
- + @, o1 o) {' I! a4 w$ D; J! \
- 2 z8 r1 A/ M) M3 m5 T9 l( h: p
- }
8 Z. i: g6 z5 X# k7 ?5 H - err_t ethernetif_init(struct netif *netif)
2 F3 { d6 j, U* R* `0 I - {# s2 E n1 [' K( ~/ ~( Y) ` a# g
- LWIP_ASSERT("netif != NULL", (netif != NULL));. h! E% j6 p- r2 A/ F ~
, |, X7 L3 S( v' @# H7 n+ \/ D- #if LWIP_NETIF_HOSTNAME
4 m) r# }( }* Y$ X7 P. Y - /* Initialize interface hostname */! s9 O8 p+ d0 Q9 I- a V1 I
- netif->hostname = "lwip";/ T; Q: ^, |. s+ x2 ? @5 q
- #endif /* LWIP_NETIF_HOSTNAME */
a8 t3 R8 g/ k" M# f) k, Z5 v, y - " F" r8 P. }7 e
- netif->name[0] = IFNAME0;: ~" o' J4 o j P& T5 o! S$ [
- netif->name[1] = IFNAME1;* i( [0 K8 K c M7 }1 J
- d8 U( r5 r- R* A0 k
- /* We directly use etharp_output() here to save a function call.
6 J+ i8 J; X/ E" m& t2 H" S - * You can instead declare your own function an call etharp_output()
: y5 Z7 X5 ]: R* m7 B2 P - * from it if you have to do some checks before sending (e.g. if link
6 _# \2 [6 c9 E( s2 [" c" p - * is available...) */, r) k# H' C3 {: g
- netif->output = etharp_output;) }- h5 c4 y0 w& l
- netif->linkoutput = low_level_output;
; x4 R1 V4 I @6 Y& w9 X
" w: h( ?" A) I6 d- /* initialize the hardware */
; s$ H# A0 q. u6 s - low_level_init(netif);
1 O) B. ?& M c1 P - 2 n2 m2 r" F1 X7 k3 ]+ b
- return ERR_OK;0 E; q" _" ]' g' s
- }
$ C. l- M; K, z6 F, a- p# @
复制代码 编译正常,然后开始网络的配置0 q1 O4 P6 |2 r
- static void Netif_Config(void)* c- S {/ P/ \
- {
`7 x( _6 g% g; J& j4 a# K5 M - ip_addr_t ipaddr;
l7 \) L8 B1 f) F+ r - ip_addr_t netmask;: y5 M6 j P4 j1 E- G; H0 F! X9 e: C" J2 y
- ip_addr_t gw;
! b! i. Z5 O3 G* g7 K - uint8_t iptab[4] = {0};3 z. r5 O4 B. \. t! p, W0 v: ^
- uint8_t iptxt[20];5 o9 |7 d p- ]
- uint8_t netmasktab[4]={0};
4 p+ |/ W U: }0 p2 ]/ E5 G0 t - uint8_t netmasktxt[30];
8 _$ f: ?& x3 y2 g# O h9 B2 d* K! V - 4 w! y: }- _- Z5 [' A2 d) a
- uint8_t gwtab[4]={0};+ G- r% B2 K) _! H$ _9 Q
- uint8_t gwtxt[30];6 Q3 N3 W6 q; H
- % e0 b: L4 p5 `4 g+ m
-
. x$ M5 k. L& W# b) H4 \# t - mem_init(); //3?ê??ˉ?ˉì??ú′???% H( j9 o, e$ V
- ' Z! Q5 L/ l" w7 H" I
- memp_init(); //3?ê??ˉ?ú′?3?; a+ X; ~2 i! q; [' q
-
+ c* b& y& z6 k - #ifdef USE_DHCP
6 n& V) P7 n% e# r0 @ `4 Q - ipaddr.addr = 0;
6 m- D9 M% o- Z. d# B$ `& v - netmask.addr = 0;
6 s, n7 U$ K2 \: q- F1 g - gw.addr = 0;
- o+ k* u* s6 o5 g' I7 P - #else
1 t) I$ |- T2 m2 [9 o$ X - IP4_ADDR(&ipaddr,IP_ADDR0,IP_ADDR1,IP_ADDR2,IP_ADDR3);' y. c" W2 q& W7 W2 l
- IP4_ADDR(&netmask,NETMASK_ADDR0,NETMASK_ADDR1,NETMASK_ADDR2,NETMASK_ADDR3);
# ]( J3 H. x4 a$ C( \ - IP4_ADDR(&gw,GW_ADDR0,GW_ADDR1,GW_ADDR2,GW_ADDR3);
. Y8 L. [) r' V5 |* h1 O - #endif /* USE_DHCP */: v$ E( t4 g& w3 o
-
# v5 g+ |2 R7 m" ~ \6 t - netif_add(&gnetif, &ipaddr, &netmask, &gw, NULL, eernetif_init, eernet_input);0 U) V+ k* m! g1 o$ P2 {
-
( }3 p+ f" D; i+ o( ~4 k2 k" b - /* Registers the default network interface. */& \3 h( r" q0 k+ w! }2 C( W
- netif_set_default(&gnetif);
( j" h, v# X" b8 x: b2 k" y -
& D M! w* _% f# Q* s* Q2 \ - if (netif_is_link_up(&gnetif))
" b* i2 ]: |6 P5 Y0 n - {
. e; ]1 ^6 g# N, r/ I0 ]5 D, h T - /* When the netif is fully configured this function must be called.*/
; q& ^3 I: ~# G+ b9 P - netif_set_up(&gnetif);$ ~$ k% o! V5 T0 l$ [/ k; R
- iptab[0] = IP_ADDR3;
& C: y- `( ^4 K5 ]8 h* x9 A/ C. A - iptab[1] = IP_ADDR2;) l, E o, `9 c; ]7 J( b' x
- iptab[2] = IP_ADDR1;. W0 g) ?% `8 e3 e7 |. S) E
- iptab[3] = IP_ADDR0;
8 k3 d! e& U* }2 B) X) j3 [ - $ u; z. ~ a; W- I c, o) B( P( q
- netmasktab[0]=NETMASK_ADDR3;
4 m4 R, B: L' l+ J( j" s - netmasktab[1]=NETMASK_ADDR2;
& W$ {: t2 ?( [ - netmasktab[2]=NETMASK_ADDR1;
/ z9 D% n! d! \ - netmasktab[3]=NETMASK_ADDR0;
: s2 M; a( i& u" O' c$ Z -
9 K! a5 U9 _* p \" W: K+ ^5 ? - gwtab[0]=GW_ADDR3;
) x8 i" a7 D' D6 w3 N - gwtab[1]=GW_ADDR2;* O, V! e! l) G% X) k% R9 `
- gwtab[2]=GW_ADDR1;; r3 F, I! h3 [/ C& t7 y7 E
- gwtab[3]=GW_ADDR0;
) f) x5 b3 e8 W% A$ K+ s/ k) I
( ?) b& H( U& N' W$ r( n- //
1 Y8 ~) |$ ^3 @ R% t6 N( I - sprintf((char*)iptxt, " %d.%d.%d.%d", iptab[3], iptab[2], iptab[1], iptab[0]);2 F I1 Y# j% _0 Q2 M$ i4 F' _
-
& O3 B# O, |5 A( m" d5 ]5 [ - sprintf((char*)netmasktxt, "%d.%d.%d.%d",netmasktab[3],netmasktab[2],netmasktab[1],netmasktab[0]);
: @* o! L! O7 \- \! f2 k, z3 i; ? - ! A# `( c; n9 @+ ]8 B
- sprintf((char*)gwtxt,"%d.%d.%d.%d",gwtab[3],gwtab[2],gwtab[1],gwtab[0]);
6 w2 t, A; ?) f& z -
, ~6 q a. C$ I - //" b- ?! q$ Z- ^4 R- B
- printf("\r\n");2 l9 T1 p* S B# m$ S8 n
- printf("\r\n");
5 N& ]$ T/ j6 ?1 S% h2 A. L/ W+ @ - printf(" Network Cable is connected \r\n");: q7 q+ _- C$ W% p" b
- printf(" This is lwip1.4.1-ping demo test \r\n");
^" v/ S5 C! ?' c+ `/ j+ t - printf(" The stm32f769 ip address is: %s\r\n",iptxt);% ^! D/ i/ q6 x% H+ H% p! T( P
- printf("The stm32f769 netmask address is: %s\r\n",netmasktxt);
8 A. X4 @5 b' B! b - printf(" The stm32f769 gw address is: %s\r\n",gwtxt);
5 @" {# R1 D, X- P1 c( j - printf("\r\n");
8 i8 M, e" g2 `- o$ O6 t; A. y' y+ L% e - printf("\r\n");3 O( C2 V9 S' Z
- printf("\r\n");& e1 T5 M! u7 F+ }
- }3 c7 _. c$ k3 ]6 b
- else z1 O6 Q# R" [ j
- {; Q; i7 u, H, y( _$ ^) h _
- /* When the netif link is down this function must be called */
. G; c& @& c* Y# Q( q! w3 R& K - netif_set_down(&gnetif);
3 z8 N% c$ [& \3 W6 M - printf(" Network Cable is not connected \r\n");
* e9 N; Y: k; h$ f% p4 w2 z) S: } A - }
+ K* g' ^3 `4 N' a1 { - }
复制代码 完成后,实现网络数据的处理0 v7 |8 |; M1 `* h% f2 P! e' {6 m, i8 P
- void LwIP_Pkt_Handle(void)3 q( @4 w( |8 \3 W- k
- {% b; l' j4 {$ }5 x: p$ V3 S
- /* Read a received packet from the Ethernet buffers and send it to the lwIP for handling */- t7 H% j/ y3 Z! H
- ethernetif_input(&gnetif);. Z: i* j- b, p6 g5 x! i, |
- }
& r) B9 u: w; l3 H - void LwIP_Periodic_Handle(__IO uint32_t localtime)
9 ]- y- Y7 C4 [; C7 T9 U' x - {+ {' d8 |! q5 u0 g- F6 ^. ^
- #if LWIP_TCP' |2 o, h% f8 |. a4 r
- /* TCP periodic process every 250 ms */ V; X1 a5 u' K& M) O
- if (localtime - TCPTimer >= TCP_TMR_INTERVAL)7 Q( m- A, C" ~+ G0 q: B
- {
2 k4 u7 w0 B# D, R$ W - TCPTimer = localtime;
; t6 o7 ]! {/ X - tcp_tmr();
% {1 X5 @3 Q8 c2 ~, m - }0 f+ b" @7 J: U% c* @4 L# l4 m
- #endif, t- i9 N$ f6 j
- ( p2 A; M9 w* d( n1 `
- 3 a$ j' l. t1 J6 w* D% Q
- etharp_tmr();3 F7 z5 ~% ^. X- b
- . X: V* ?9 x" c( u1 h9 B$ d: `
- }
复制代码 在main函数添加网路初始化,及数据处理/ I# q( \, u7 t y0 W
- Netif_Config();5 Y: `" y2 y" [0 \* f
- 0 x8 W+ U5 K6 ]0 I# r. o
- while(1)
. A/ I1 h& u. `) W - {
8 s: J8 }+ V, F/ N7 x2 E' ~ h - if (ETH_GetReceivedFrame(&EthHandle)) //?ì2éê?·??óê?μ?êy?Y°ü
% F `/ ?- X7 e/ _ - {
" F' N* C" w; n/ n: n/ y - LwIP_Pkt_Handle(); //. B- H6 D3 p, I6 w4 P3 S, T
- }
: d: l2 p; w$ S6 Y; ~ - /* handle periodic timers for LwIP */' o4 f' _$ Q; a) J! u
- LwIP_Periodic_Handle(LocalTime);7 V7 i, E; N# a5 V6 h! _
- led_toggle();/ r0 q ]8 R4 `( I
- delay_ms(5000); Q# r( Y; ^/ k8 `! M
- }
复制代码 9 k9 s$ u0 A" g& A$ }2 |8 u/ k
: m8 k: ^; m9 g- ?) K8 g. Y+ _
其他功能目前还在研究
; w9 s4 u) F0 d: O7 S
# Q3 ]4 J1 O8 C. D9 z; T9 }$ D! a |
https://www.stmcu.org.cn/module/forum/thread-615497-1-1.html