Forum Posts
When will Reference manuals really be usable?
I write code and manuals for 36 years and I've learned that those are too often written by a person who fails to put himself in the readers position. A reader who's not familiar with the topic otherwise the material was not required in the first plac...
Resolved! STM32G474 FDCAN3 bit timing
Hello All,I am trying to send some classic CAN messages via the FDCAN3 module on STM32G474CE device. I have only pins for FDCAN3 free. My FDCAN clock is PCLK1 with a frequency of 64MHz.When I try to transmit a CAN message, firstly there is no transmi...
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...
