How to obtain manufacturing information on STM32F103?
Dear all,is there a way to get manufacturing information from these chips? Like production date, batch, ..., something else ? Looking forward to your ideas!CheersPeter
Forum Posts
RTC criteria for activating CSS
Hi ST Community.A colleague and I were having issues on an STM32L4, in that the CSS detects an LSE failure and swaps to the LSI.We looked at Errata ES00335 - Rev 15 and it confirms what we see that the LSI becomes unstable. We're looking for a workar...
Synchronization of timers in stm32f7
Hi Sir / Madam,I am trying to synchronize two timers or reduce delay between two timer outputs.Yellow signal represents low frequency signal ( Timer 3 around 4Khz ) and blue signal represents high frequency signal ( Timer 1 around 1.5Mhz ). They are ...
How can I get minimum nanosecond delay with a Nucleo F446RE using a Cortex M4 180 Mhz?
Hi everyone,I am using a nucleo F446RE using a Cortex M4 180 Mhz, and I have a problem when I try to get nano second delays.void delay (uint16_t delay) { __HAL_TIM_SET_COUNTER(&htim1,0); while(__HAL_TIM_GET_COUNTER(&htim1)<delay); }In t...
Resolved! Can't communicate with another device via UART
I've been fighting this problem for some time. I have a simple custom made board based on STM32G05. I'm utilizing 2 UARTs. One of them I use just for serial port debug. Takes keyboard input (but don't use it) and print out data for debugging. The ...
Resolved! STM32 Bus Matrix behavior and arbitration mechanism
Hi,I'm trying to learn DMA in depth, but I'm confused at some points. It's about Bus Matrix and Arbitration mechanism. In STM32F446RE, there are 2 DMA controller and each one has 1 peripheral bus and 1 memory bus. Question is not about memory bus of ...
How to setup ADC for specific period of time and then stop taking readings??
Dear all, I am relatively new to STM 32 ADC setup. I am using STM32 L0 seriesI want to read data from one ADC channel for 5 minutes, 15 minutes and 8 hours.Duration will be set by user according to needs. I Don't know where to start and is it eve...
QSPI STRANGE BEHAVIOR WHEN AUTOPOLLING
I am trying to autopoll wip and wel bit from status register (0x05) in a flash memory when I perfrom a erase process.The first autopolling operation is correctly, however, the second time that qspi try to autpoll the bits, this does not release CS, a...
Resolved! STM32H743AII6 Wrong temperature value from internal temperature sensor
Hi to everyone,I have 2 batches of a board (let's call NEW and OLD version) where internal temperature sensor of STM32H743AII6 (connected to ADC3 channel18) is used. Differences between batches are related with I/O pins (used MCO1 instead of MCO2 a...
