STM32 MCUs Products
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Resolved! STM32H7 QSPI kernel frequency too slow leads to read errors ?
I am developping a driver for a QSPI memory mapped memory on STM32H753.In SPI mode it works fine.When I switch to "quad io" mode (ie. 4 data signals) I read corrupted data. Adding some delays between reads improve the results (but doesn't completely ...
Problem with the HSI clock on the STM32F091VC
Hello,I use STM32F091VC the from 4 year without problem, I have used more than 20000 STM32F091VC. Recently, I have several STM32F091VC who have a big problem of accuracy on the clock HSI. The error is about 30% ! For exemple, the STM32F091VC give abo...
Problems accessing QSI Flash with consecutive reads
I have a Cypress S25FL064 flash memory connected through QSPI interface to a STM32H753.The memory is booting in "single IO" mode (ie. classical SPI protocol with MISO/MOSI signals).In this mode I am able to erase, program and read the memory through ...
Generated LIN break is too short
Hi everybody,I am using STM32G070KB and trying to generate a LIN break. But this seems to be only 10 bits long instead of the described 13 bits. If I am right the break should be about 680µs long at 19.2kBaud. But it is only about 520µs long which is...
STM32G474VET6 FMC
All health!I tried to connect the display on ILI9341 to STM32G474VET6 using FMC. There were no problems with stones F1, F3, F4, F7. And with G4, an interesting plug is obtained - for each byte, a 0x00 byte is added. I read Eratu - there is nothing. I...
Minimum Pulse Width Sensed by the GPIO of the STM32?
What should be the minimum pulse width of the signal which can be detected by the GPIO pin of the STM32 and on which factor this detection depends upon?
Resolved! VREFBUFF is not available in STM32L431RCTx, How to enable External ADC reference?,
VREFBUFF is not available in STM32L431RCTx series, in datasheet it tells that "internal voltage reference buffer is not available", is there any other option to give External ADC reference for this series of STM32.
PWM on non PWM pin
I need to generate PWM on a non-PWM pinI know one method is to use an ISR triggered by a timer, but because I need to run the PWM at 10kHz, this will put a huge load on the CPU just to toggle 1 pin.I've seen examples of using DMA to send data to the ...
how to stabilize ADC output
we are reading pH sensor by using nucleo 32L746RG.even though both VDD and sensor value looks stable on tester like 3.3v+-0.1mv/ 2v+- 1mv, the adc value shows about 10% up/down around the true value.the adc value seems to repeat increasing and decre...
