jazz/Polling-CPP
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not sure why im so bad at math

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jazz
2025-11-20 03:51:01 -06:00
parent 6a7df62ed3
commit c9f5b3cbb6
1 changed files with 14 additions and 10 deletions
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24
Core/Src/main.cpp
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@@ -36,9 +36,14 @@ extern "C" {
/* Private define ------------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */ /* USER CODE BEGIN PD */
#define Print2UART1 int __io_putchar(int data) // prints to serial monitor #define Print2UART1 int __io_putchar(int data) // prints to serial monitor
//float duty = 58.52 // (((2396*4096)*65534)/65534)*100
//int duty = 59; int duty;
float duty = 58.52; /*
* We are going to set this value repeatedly as such:
* CCR
* DC(%) = ----------- * 100
* ARR + 1
*/
/* USER CODE END PD */ /* USER CODE END PD */
@@ -121,20 +126,19 @@ main(void)
HAL_ADC_PollForConversion(&hadc1, 100); //poll ADC1 periph, timeout 100ms HAL_ADC_PollForConversion(&hadc1, 100); //poll ADC1 periph, timeout 100ms
rawValue = HAL_ADC_GetValue(&hadc1); rawValue = HAL_ADC_GetValue(&hadc1);
printf("The value is %hu volts.\r\n", rawValue);
HAL_Delay(500); HAL_Delay(500);
//volts = rawValue; // TODO change this to an actual conversion volts = ((float)rawValue / 4096) * 3; // convert to voltage from 0 to 3.0
volts = (float)rawValue / duty;
//printf("The value is %hu volts.\r\n", volts);
printf("The value is %f volts.\r\n", volts); printf("The value is %f volts.\r\n", volts);
HAL_Delay(500); HAL_Delay(500);
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, duty); // TODO dude what is going on duty = ((float)rawValue / 4096) * 65534;
// rawValue/4096*65545
// i think it works now? __HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, duty);
HAL_Delay(100); HAL_Delay(100);
/* USER CODE END WHILE */ /* USER CODE END WHILE */