Forum Posts
Resolved! no write access to ADC12_CCR registers of STM32G473QE
Hello,my problem is that i can't get access to the ADC12_CCR register. I activated the corresponding Clock in the RCC_AHB2ENR register. In addition I compare the addresses of the register from the library with the data of the reference manual, they a...
Resolved! PWM + DMA + 100% PWM duty bug, duplicated cycle
MCU: STM32F411CEU6.IDE: STM32CUBE IDE 1.5.1Timer1 config:PWM generation mode, CH1+CH2No prescaler, Period=549, Repetition counter = 8DMA: Circular mode, memory->periph, halfword, mem increase CH1+CH2PWM start code:// Ensure 32-bit alignment just in c...
I am trying to program STM32H7 in boot mode. Does SPI speed and pulse voltage matters.
Hi .I am trying to program STM in boot mode. With controller operating on 3.3v with SPI speed less than 1.25MHz is working fine. While increase in SPI communication speed leads to get NAC not acknowledgment from STM controller in boot mode and i have...
How to protect my application code read from MCU?
I want to protect my code by writing OB using HALbool SetFlashReadProtection(bool state) { FLASH_OBProgramInitTypeDef OptionsBytesStruct = {0}; HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct); if(state == true) { if(OptionsBytesStruct.RDP...
I am working for stm32h753zi and i am trying to measure ADC reference voltage. But i got 5.74466228 instead of 3.3v.Please any one give me the guidance. I have attached steps i followed, Thank you.
I am using the code :int read_adc_data(ADC_HandleTypeDef *ptr_hadc, uint32_t channelx){ uint16_t vrefint_cal; float adc_read_value = 0.0, adc_reference_voltage = 0.0; ADC_ChannelConfTypeDef sConfig; sConfig.Channel = ADC_CHANNEL_VREFINT; ...
The internal temperature measured by the ADC is different in debug and not debug mode. When I am debugging, the temperature value measured is correct (about 23°C). Without the j-link debugger, the temperature measured is incorrect (about 18 °C)
I send the temperature value on a serial interface.In the live watch of the IAR tool, I can see the same correct value than the one sent on the serial interface.The problem occurs after a power-down/power-up of my board, like if something is not init...
Resolved! How to allocating dynamic memory in External SDRAM?
Hi all,I'm currently working on a project using the STM32H723 interface with SDRAM IS42S16400J. After booting up, I have to read a large JSON file [2MB] from flash into SDRAM then parse it to get the information. I wonder if I could allocating dynami...
Jumping to main program from ISR
Hi,I try to jump from Bootloader to my main program using this function:void jumpToMainProgram(){ uint32_t topOfStack = (*(uint32_t *)0x8008200ul); HAL_RCC_DeInit(); // deinit clocks // reset all periphals __HAL_RCC_AHB_FORCE_RESET(); __HA...
STM32F207+ADS127L01 SPI
Hi there i cant get a real data from ADS1227L01. In debug mode i see the value 0xFFFFFF.Q1: If anyone used ADS127L01 can they send me librarys for comparison ? Q2: Im using 3.75MBits/s Baund Rate is it enough for 24 bit data?
