Hello Guys, I am try to get the STM32F446RE to read analog signals from a potentiometer and I just cant seem to get it right please help me out, can I please get an example code that works cause even uploading the code I have written just isn't working right now.
I am using Kiel IDE
Here is my attempt to initialize it
//set clock to 14MHz prscaler ADC->CCR |= ADC_CCR_ADCPRE_0; ADC->CCR |= ADC_CCR_ADCPRE_1; ADC->CCR |= ADC_CCR_TSVREFE; //RCC clock for ADC and for alternate function RCC->APB2ENR |= RCC_APB2ENR_ADC1EN; //Enable GPIO port CLOCK_INIT_PORTA();
//configure input push pull //setting up the input //setting up the mode GPIOA->MODER |= (GPIO_MODER_MODE2_1); GPIOA->MODER |= (GPIO_MODER_MODE2_0);//11 input output //setting up the PUPDR //since we have pulled down push pull alternate function GPIOA->PUPDR &=~(GPIO_PUPDR_PUPD2_0); GPIOA->PUPDR &=~(GPIO_PUPDR_PUPD2_1);//analog value //Enable end of conversion interrupt ADC1->CR1 |= ADC_CR1_EOCIE; //ADC Resolution 8 bit ADC1->CR1 &=~ ADC_CR1_RES_0; ADC1->CR1 |= ADC_CR1_RES_1; //Set sampling rate choose maximum for the highst precision ADC1->SMPR2 |= ADC_SMPR2_SMP2_0; ADC1->SMPR2 |= ADC_SMPR2_SMP2_1; ADC1->SMPR2 |= ADC_SMPR2_SMP2_2; //set channels in sequence reg ADC1->SQR3 |= ADC_SQR3_SQ1_1; //Enable ADC that is ADON //Enable continuous mode ADC1->CR2 |= (ADC_CR2_ADON)|(ADC_CR2_CONT); //delai for 2ms wait_For_t(20); //turn on ADC adon for the second time //delay 2 ms ADC1->CR2 |= ADC_CR2_ADON; wait_For_t(20); //Run clibration //delay to allow the finish wait_For_t(2);
Hello, I have moved your question to the Keil forum, however you are more likely to get a response from a device specific query like this from the STM32 specific forum below (ST website):
Hello sing did you find the solution because i am also stuck at the same point. Tried so many methods but not found the right solution, i am using the ABOV Microcontroller where as you used stm one. So please let me know if you found the solution for this waiting
Waiting for your reply!!!
An idea is to compare your application with example projects offered by the Pack Installer of Keil MDK: