Regarding Delay

[saiteja]

Hi..... i am a masters student from india. I have developed a code for RGBW now i want to include strobe effect for that i have give a hal_delay it is working fine now i want to change the PWM of RGBW when it is in strobe effect both has to work simultaneously but it is getting hanged i think this is due to Hal_delay i think this problem will be reduced if i give timer delay or i want to do something if it will solved with timer how to give timer delay in STM Controller.. I am using STM32F407VG controller.. Can someone help me out in this....... Thanks in Advance

[T J]

that's for my OS,

I check if DMAs are done, reissue commands in there...

you don't need it when you use blocking code.

[saiteja]

Ok..... Thank You...... I'll check

[saiteja]

1. void wait_us(int uS) {
2. resetTimChanneluSCounter(&htim5, 1, uS);
3. waitTimChannelComplete(&htim5, 1);
4. }
5.  
6. void resetTimChanneluSCounter(TIM_HandleTypeDef *htim, uint32_t channel, int16_t uS) { // tuned to F767
8.  
9. htim->Instance->CCR1 = htim->Instance->CNT
10. htim->Instance->SR = !TIM_SR_CC1IF; // clear the flag
11.  
12. }
13.  
14. void waitTimChannelComplete(TIM_HandleTypeDef *htim, uint32_t channel) {
15.  
16. uint32_t tmp;
18. tmp = 0;
19. while( ! tmp ){
21.  
24. tmp = htim->Instance->SR & TIM_SR_CC1IF;
25.  
26. }
27. // used to have &=
28.  
29. htim->Instance->SR = ! TIM_SR_CC1IF; // clear the flag
30. break;
32.  
33. }
34. //******************
35.  
36.  
37. start_Timer5();
38. while(1){ ....... }
41. in your code:
42. SetPWM(x,dutycycle);
43. SetPWM(y,dutycycle);
44. SetPWM(z,dutycycle);
45. wait_us(1000); // blocking code
46. SetPWM(x,0);
47. SetPWM(y,0);
48. SetPWM(z,0);

wait_us(1000);

I have written the code like this blinking also not taken place. What is the mistake

[saiteja]

1. void wait_us(int uS) {
2. resetTimChanneluSCounter(&htim5, 1, uS);
3. waitTimChannelComplete(&htim5, 1);
4. }
5.  
6. void resetTimChanneluSCounter(TIM_HandleTypeDef *htim, uint32_t channel, int16_t uS)
7. {
8. htim->Instance->CCR1 = htim->Instance->CNT + uS_Counts;
9. htim->Instance->SR = !TIM_SR_CC1IF; // clear the flag
11. }
12.  
13. void waitTimChannelComplete(TIM_HandleTypeDef *htim, uint32_t channel) {
14.  
15. uint32_t tmp;
17. tmp = 0;
18. while( ! tmp ){

1. tmp = htim->Instance->SR & TIM_SR_CC1IF;
3. }
4.  
6. htim->Instance->SR = ! TIM_SR_CC1IF; // clear the flag
9. }
10. //******************
11.  
12.  
13. start_Timer5();
14. int main()
15. {
16. while(1){ SetPWM(x,dutycycle);
17. SetPWM(y,dutycycle);
18. SetPWM(z,dutycycle);
19. wait_us(10); // blocking code
20. SetPWM(x,dutycycle);
21. SetPWM(y,dutycycle);
22. SetPWM(z,dutycycle);
23. }
24. }
25.  

I have written the code like this but it is not working blinking also not happening any mistake