1.创建好带有printf-stdarg.c的FreeRTOS的工程7 u" N; l7 x( M7 \* T9 I0 f& G1 ^
$ e/ _4 F$ C+ t' E
2.修改main.c文件
7 Y' i o h/ v5 \2 r
' h/ q6 \3 ^" S- X* i; P- /* USER CODE BEGIN Includes */) E% h; T5 n% Q1 V9 E2 c4 j
$ O8 S. T: o$ m" g/ c! n$ q7 ~7 v) e- #include "FreeRTOS.h". m( k) w8 O8 x5 ~& S/ ?
- #include "task.h"
$ b7 S, R2 R5 f e) s - #include "timers.h"- K6 N. T2 r+ G/ X+ j
- #include <stdio.h>
1 x, h" K6 Q X3 K% W - #include <string.h>
3 c# b; q \$ J - 3 g) u0 E. `6 [4 [* `$ f2 r
- /* USER CODE END Includes */5 w% {5 u7 E0 x' e( |
- /* USER CODE BEGIN PV */5 L" ^2 P/ E- M+ A E4 R" D( a
- static TaskHandle_t AppTask_Handle = NULL;
+ L- X: C4 g& z* ] - static TimerHandle_t Timer1_Handle = NULL;4 S! Z' M+ `- J+ P- l8 j
1 A1 l! J* ^5 R# f- extern int f_printf(const char *format, ...);
% ]( H3 {. i7 g9 G$ j+ [( h - + E6 B$ n8 J- M7 E- j% s: a0 }" [
- /* USER CODE END PV */' y z" L2 |5 [& ^! w0 C
4 C2 f$ j" @' C* F# r( _/ O9 X- /* Private function prototypes -----------------------------------------------*/2 a! a* ]. V O, `) e9 \
- void SystemClock_Config(void);
5 E* V$ x0 s: }' d' D - /* USER CODE BEGIN PFP */
1 d) r/ V- g% W& T1 z - v \; x5 G$ b# r @' D
- static void AppTaskCreate(void);, h. B0 e- R' Z1 D3 E4 ?
- static void TimerCallback(void);
4 ]( i) ~/ m; w; X, y - 2 W' i; s5 }! [$ i
- /* USER CODE END PFP */ d% h% Y& q& [( w5 \6 H! U
8 v/ U6 @* R8 b, O, V2 R0 i. P- int main(void)
9 k i/ o9 s( c2 w$ {8 g( \ - {+ c4 l: G. R! Q* C# N
- /*
! z1 w/ V9 A0 i - *7 _2 { _+ K, w) @: ?
- */
( k6 l" Y* N$ { - $ r; A+ U0 t Q& g7 z$ |$ N
- /* USER CODE BEGIN WHILE */
$ d4 [- P( J% g6 b4 K - UBaseType_t xReturn = pdFALSE;
" f! }' W7 C& ?, e4 w; U# c
+ O" W$ `+ L$ t4 ?- xReturn = xTaskCreate((TaskFunction_t)AppTaskCreate,
V5 b; v2 N% N, r/ n4 ^+ ?5 p9 J - (const char *) "APPTASKCREATE",
5 C, l/ h3 V# C* g - (uint16_t) 128," Y& \+ b2 d9 J5 j2 o' y
- (void *) NULL,, [6 e6 P, i( N% Q' X( O
- (UBaseType_t) 1,. z. @, G4 T+ ?& S
- (TaskHandle_t *)&AppTask_Handle);- F; T7 y" G. y5 w2 j
- / Q4 {* t3 D" J) y: P
- if(xReturn != NULL)
2 Q( S9 J2 u7 i) O. ^ - {1 z" G1 D0 y1 d1 ~
- f_printf("Task Create PASS.\r\n");) u3 D5 R! n% r& {) G( o. Q3 K
- vTaskStartScheduler();; t4 ?0 X! Q z/ E
- }
0 r, ~: T* ^7 H, X -
, `' ^$ [' \6 Q" i* C# u3 R! V% F - / @: W3 h2 R9 }; w# r: ?
- while (1)! X7 Y. r# t* G9 {
- {
) l$ {3 ?3 R P/ G& W" h! M - /* USER CODE END WHILE */- d+ O6 z9 I+ q( c" p0 f
- Z: O0 A2 s6 ]1 q6 F. N. H% M( F- /* USER CODE BEGIN 3 */
$ e5 J4 W1 X4 f; G - }5 @7 }! O$ `2 }3 _5 A' a
- /* USER CODE END 3 */% O V$ P! L, z- ]9 C4 Z( G
- }- f6 f! p) s) T
- 8 }* N+ w& H( g% d3 s* e
- 1 G7 A3 g3 }3 |, G- l: L1 g
- /* USER CODE BEGIN 4 */& i6 b/ ?' N. |
- static void AppTaskCreate(void)* r. [! D1 b; R: B6 W5 H
- {+ G, S, M, z0 F% e; G
- BaseType_t xReturn = pdFALSE;
3 D1 ]% [9 x9 `0 ]8 i -
) o; y* J! [! j: u7 {$ x6 Z - Timer1_Handle = xTimerCreate( (const char *) "TIMER1",(TickType_t)1000,. {, X. N5 q0 |( t* Y
- pdTRUE, (void*) 1,(TimerCallbackFunction_t)TimerCallback);
. ~- O7 F& Y3 H% F- M& R -
) m' f9 J |$ X% T8 } - if( Timer1_Handle !=NULL)# r* x) g( F+ H U" J) ?* V
- f_printf("Timer1 Create PASS.\r\n");
p* F" b* X. T: r/ i4 g -
" d8 F8 y a. U/ H4 F - xReturn = xTimerStart(Timer1_Handle,0);0 Z# U- i! {) m% |
-
5 h! r' \5 {3 o8 Z l A - if(xReturn != pdFALSE)7 U. }2 ?1 y: ]8 |) i% E
- {
* H6 g# x: n4 G" `8 D1 f; T - f_printf("Timer1 START.\r\n");
% s/ g$ s5 `4 f/ \3 M - vTaskDelete(AppTask_Handle);
; @6 P9 _, R. {: k, S - }
1 I5 @5 w/ G' Y$ t @ - 5 n& o: k+ L: `$ n( S. p
- }3 i/ ]$ B2 o7 Q
- static void TimerCallback(void) O- h. t; h/ F. A4 q* \& S
- {
* _+ ^+ w& D1 I) |- K - HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_1);7 L3 Y$ t/ _' P) g( h6 z
- ; e. m( a* U/ s1 E
- }7 w$ _0 r3 r- C: H3 z
- /* USER CODE END 4 */
复制代码 4 p) Q- X/ d' r& \$ d1 G1 ~
. m( H! } p: X9 [% q
: ?3 G! m7 _$ `' b9 D
|