Forum Posts
Resolved! SPI1 SCK Polarity is incorrect.
I have a B-U585I-IOT02A Discovery board, which is connected it to an external ST LSM6DS3 accelerometer via the SPI1 pins on the arduino connector. The issue is that the SCK line is going low when not active even though I have it configured to be hig...
Has anyone workding SDRAM on H743zi2 Nucleo? in particular uing SDRAM IS42S16160J
Has anyone workding SDRAM on H753zi2 Nucleo?To start I have a F767 with the IS42S16160J working. Writes and reads back fine. Proven by disconnecting a line and the test code finds it.Move to H743zi2. No joy, it just reads almost radom back.I changed ...
Resolved! Two STM32F103C8´s connected by SPI. Master is sending data=3 as test, Slave STM received the data, HAL_SPI_RxCpltCallback is fire, but HAL_SPI_ErrorCallback is fire too, HAL_SPI_GetError=4 (overload)
Hi all.I am trying to connect 2 STM32F103C8 (blue pill board).I run a test using just ONE STM32 using SPI1 as Master and SPI2 as Slave, all configurations were working fine (FullDuplex, Master Transmite. receive only Slave....every test was fine (all...
SPI using SPI_NSS_HARD_OUTPUT not working
Using a stm32f412zg:I want a simple master / slave full duplex config, using hardware gpio toggle PA4. I believe I am doing the necessary to init it right but 1) problem, the GPIO goest to 0 before the transaction, and never come back up. 2) commenti...
How to initialize DMA SPI Slave with an empty FIFO Tx? (Or how to flush it?)
I am using the DMA SPI as slave on a stm32-F401. I use:DMA SPI SlaveHAL_SPI_TransmitReceive_DMA(&hspi2, pTxData, pRxData, len};When I do this a len amount of zeros is written to the FIFO Tx. For my use case I need to write to the Tx buffer using seri...
Resolved! How do i know whether MCU STM32F427VGT6 is genuine or fake
I bought hundreds of stm32f427vgt6 MCUs, They work abnormally—— The flash size@ address 0x1FFF 7A22 value is 0xFFFF, In theory it should be 0x0400. The MCU uid @ address 0x1FFF 7A10 of the same batch is irregular，but it should be regular accordin...
Resolved! STM32L431 mass erase over SWD not working
Hello,I've created a custom PCB with a STM32F207 controller on it. With this board I want to address different targets using SWD. My targets are a STM32F407 and a STM32L431 controller. I implemented a custom SWD interface with Timer and DMA on my F20...
Resolved! SPI: First byte of 16bit TX transfer is always 0
Sending display data to an ILI9341 via SPI. The ILI9341 needs 16bit words in BigEndian. When I convert the STM32 LittleEndian data to BigEndian and then send the data paket as 8bit bytes everything is fine. In order to save the conversion I tried to ...
