u_power.c 1.6 KB

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  1. //#include "driver_adc.h"
  2. #include "user_driver.h"
  3. #include "u_power.h"
  4. #include "u_main.h"
  5. #include "u_light_ctrl.h"
  6. #include "Drv_adc.h"
  7. #define POWER_DET_CHN (0x02)
  8. #define POWER_DET_PORT (0x32)
  9. #define POWER_ADC_ERR_PVT (10500) // 短路时的电压对应值 低于10.5V 这里单位为mV
  10. #define ADC_CHECK (1)
  11. extern void light_state_upload(void);
  12. static void power_check_cb(void)
  13. {
  14. static int det_cnt = 0, adc_temp_mean = 0, undervoltage_cnt = 0;
  15. uint32_t adc_val=0;
  16. adc_temp_mean += ADC_GetVoltage(ADC_CHANNEL_5); //读取adc数据
  17. //U_UART_PRINTF("ad=%d\n", adc_temp_mean);
  18. ++det_cnt;
  19. if (det_cnt >= 3)
  20. {
  21. det_cnt = 0;
  22. adc_temp_mean /= 3;
  23. if(adc_temp_mean<0)adc_temp_mean=0;//负数是错误值
  24. adc_temp_mean = (adc_temp_mean*123);//硬件衰减倍数12.3 还原硬件衰减倍数、
  25. adc_temp_mean/=10;
  26. if (adc_temp_mean < POWER_ADC_ERR_PVT && g_light_para.power_st)
  27. {
  28. if (++undervoltage_cnt >= 2)
  29. {
  30. light_power_set(GLO_DIS);
  31. light_state_upload();
  32. }
  33. }
  34. else
  35. {
  36. undervoltage_cnt = 0;
  37. }
  38. //U_UART_PRINTF("m_ad=%d mV\n", adc_temp_mean);
  39. adc_temp_mean = 0;
  40. u_ag_timer_start(AG_TIMER_ID_POWER_CHECK, TIMER_TIME_POWER_CHECK, power_check_cb);
  41. }
  42. else if (det_cnt == 1)
  43. {
  44. u_ag_timer_start(AG_TIMER_ID_POWER_CHECK, TIMER_TIME_POWER_CHECK / 100, power_check_cb);
  45. }
  46. }
  47. void power_check_init(void)
  48. {
  49. #if 0
  50. //bk3431
  51. GPIO_config(POWER_DET_PORT >> 4, POWER_DET_PORT & 0x0F, 2);
  52. ADC_Init(POWER_DET_CHN);
  53. #endif
  54. #if(ADC_CHECK==1)
  55. ADC_Configuration();
  56. u_ag_timer_start(AG_TIMER_ID_POWER_CHECK, TIMER_TIME_POWER_CHECK, power_check_cb);
  57. #endif
  58. }