STM32 MCUs Products

Good afternoon everyone. Does anyone knows if the SD Card works on STM32F103ZET6 in 4-bit mode.

Auto-Reload Register = 0

Good day, I'm using the stm32f103c8 on the bluepill board and I intend on running timer 2 (clocked at 72MHz) every cycle. Now with this clock, a cycle is 13.9ns. To make this happen, should the Auto-Reload (ARR) register of timer 2 be loaded with 0 s...

Changed from STM32L476xx to STM32L4A6xG and the Serial communication clock has 7% of difference at 115.2kbaud rate.

I have firmware file for the STM32L476xx and in the application they decided to use the STM32L4A6xG instead for future upgrades.I tried to load the original firmware and it seems that the application is not running properly anymore. All initializatio...

STM32L4S9 SDMMC timeout handling

Hello,I am working with the SDMMC peripheral on a STM32L4S9 chip to interface with an SD card on a custom board using the HAL SD card driver. I am performing reads and writes using `HAL_SD_WriteBlocks` and `HAL_SD_ReadBlocks`. Everything is working w...

Typo IUFREMAP in RM0440 and other

Instead of IUFREMAP there should be UIFREMAP.Seen multiple times in multiple RM with the given bit.JW

Setting SPI1 to the highest clock frequency

Hello, I just wanted to ask what's the best way to set the SPI and system clock in STM32L496 to have at least 40MHz frequency for the SPI1. Thank you in advance

How can you know that an update event on TIM5 (for example) is actually an overflow?

I set up tim5 in compare mode to get an interrupt at a specific tick, but I am also interested in the overflows. I get an update interrupt very early after starting the timer, so it is definitely not an overflow. Is there some register I should read ...

SPI_Transmit get stuck at HardFault_Handler @ stm32f4xx_it.c

I'm trying to create my own library,When I use HAL_SPI_Transmit(), it gets stuck atvoid HardFault_Handler(void) @stm32f4xx_it.cI use SPI at my own library/function, not in the main function.I also check SPI_Transmit before calling my own function, it...

STM32F469I-DISCO standby mode RTC wake up immediately issue.

Posted on February 12, 2018 at 07:12I used STM32F469I-DISCO and STM32F429I-DISCO to testing Standby mode function by PWR example(Attach). Standby mode function is no problem on STM32F429I-DISCO.  But in STM32F469I-DISCO , used RTC wake up form stand...