STM32 MCUs Products
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How to reduce the time between SPI (DMA) transactions
I need to transfer a large amount of bits over SPI de-asserting/asserting the select line very 64 bits. I'm using DMA. The time between transmissions is huge, as can be seen below:The pink channel is SCK, each chunk is 64 bits. The code is below:whil...
Recovering from a failed I2C transfer
I am using HAL_I2C_Master_Transmit(). That generally works well. However, I sometimes run into an issue when the slave device is not responding. HAL_I2C_MasterTransmit() obviously returns an error after running into timeout, as it should. But then I ...
Is it possible to use the SAI peripheral with the data line only - SD_A or SD_B (without outputting the peripheral clock signal) when using the "free protocol" mode for a single-wire communication purposes?
Dear STM32 MCUs community,I am currently working on a project with the STM32l452RET6 MCU with a goal to use the SAI peripheral for one-directional single wire communication purposes, so only the "data line" (SD_A or SD_B) will be outputted using the ...
STM32F446 MCU LSE Ready Issue
Hello, I used STM32F446 MCU. I'm disconnecting the external RTC crystal. Then I turn the device off and on, but the LSERDY bit does not become zero. What could be the reason for this? Thanks.
Resolved! Why I am getting a link failure when the section names in the linker script match the names in Main?
I am using a Nx_Webserver application example from STM32H735G-DK modified for STM32H743i-Eval. I have moved the Rx, Tx, NetXPool references to RAM_D2 and I find that I get an error when the linker runs if the RxDecripSection and TxDecripSection name...
Resolved! Weird ADC failure STM32F091, any ideas
We've been building a PCB with four STM32F091s on each PCB and we've built about 50 units by now (over about 3 years). I have now seen three PCBs where the ADC readings are 'bad' on two of the four micros. By 'bad' I mean conversion values are 30% is...
is tehre any simple way to create 5v tolerant ADC input on STM32H750?
I have seen an example to create 5v tolerant input on STM32H750, a resistor divider controlled by GPIO. Now I can't find find it when I need it...anyone seen this example and maybe can point it out? I suppose I need a buffer in front to avoind impeda...
ADC direct channel issue on STM32H7A3
Hello everyone,I'm having some throuble in reading the direct analog input on channel PA0_C.In my design I'm using several analog input. They seems to work properly in general and I have a precision more or less as expected. On channel PA0_C, though,...
