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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...
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 ...
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...
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 ...
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 ...
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...
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...
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...
Hello good day!I want to setup a CAN-FD message sending simulation with H7A3ZI-Q (one or two message ids). But i do not exactly know how to assemble the HW and what i need (For STM side). I know this board is capable of the CAN-FD but it needs a tran...
