Ask questions, find answers, and share insights on STM32 products and their technical features.
I need to measure a signal that arrives on the board through a 100K resistor. I am trying to avoid having to add an operational amplifier to buffer it before the ADC input. I could use a bit of help understanding what the data sheet says about the ...
int USART2_Write(int ch){ //wait for TX buffer empty while (!(USART2->SR & USART_SR_TXE)) {} USART2->DR = ch; return 0; } int USART2_Read(void) { while (!(USART2->SR & USART_SR_RXNE)) {} return USART2->DR; } #ifdef __GNUC__ #define PUTCHAR...
Hello Everyone, im am building a custom PCB using the NUCLEO-H755ZI-Q as a reference but i am not sure what the difference between the STM32H755ZIT6 and the STM32H755ZIT6U is. The scematic uses the STM32H755ZIT6U but that one isnt in stock, so i woul...
Dear Readers,I got a lot of problems getting a PDM microphone (IM69D130) via SAI running on an STM32L431. I connected it as specified in app Note AN5027 (Select --> HIGH; Clock --> SCK_A; DATA --> SAI_SD_A);SAI_1 has 32 MHZ.Sai_init:hsai_BlockA1.Inst...
Hi I'm usiing STM32F746 controller, I am erasing sector 7 using HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *SectorError).Erase operation is successfull but the Controller functionality is not working i.e it is not taking any input...
I'm trying to use the watchdog on a STM32F401.The watchdog initialization is as follows: hwwdg.Instance = WWDG; hwwdg.Init.Prescaler = WWDG_PRESCALER_8; hwwdg.Init.Window = 127; hwwdg.Init.Counter = 127; hwwdg.Init.EWIMode = WWDG_EWI_DISABLE;In norma...
I suppose FMAC uses AHB clock. I would like to know, if possible, how many clock cycles are required to perform a multiply-and-accumulate step in a FIR or IIR filter.Thank you for your help
Hi,my dear STM32L4 (BL475E-IOT01A) was working until yesterday, but for an unknown reason today it does not work anymore.When i connect the micro usb to the ST-LINK the LD7 is turned on and remains red. the datasheet says it is a Fault Power. The con...
I am trying to generate a small program to toggle the onboard LED (PA5) using the onboard switch (PC13) using an interrupt. I set a breakpoint in my ISR and I never go there. I have gone over all the register settings and they look correct: (i.e. ...
Hello, I am using Keil and generating a *.bin file of my program from the *.axf file.I would like to know if there is a way to check before loading the binary file if it is corrupted.Is there some checksum to read or something.
