2020-04-07 01:47 PM
I have two protoboards for 100pin F746/H750 CPU. Both have problems with reset voltage. I use an external pull up resistor for reset on both and they work, but the voltage on reset pin is still low.
The post "FAQ: Unable to connect to STM32H7 devices
" says incorrect power setting is a problem. But when tried it, Keil says "PWR_DIRECT_SMPS_SUPPLY" is undeclared. Besides, there are not SMPS pins, what the figure 22 shows on the post, on either 100pin CPUs
What should I do to get reset pull up working.
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
/** Supply configuration update enable
*/
// HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);//PWR_DIRECT_SMPS_SUPPLY
HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY);
/** Configure the main internal regulator output voltage