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Resolved! STM32F4 Is this BUG? I2S LOOP BACK TEST FAILS in 24Bit Mode. Crush DMA pointer etc. (source code attached)

I wrote I2S Loop back test program. I2S2 as Master Transfer mode and I2S3 as Slave Receive mode. (Proto for ADC in and DAC out.)It works OK when 16bit in 16bit frame. However, in 24 bit in 32bit frame, DMA pointer etc. are corrupted.With step-by-ste...

KAJIK.1 by Associate III
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  • 8 replies
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Resolved! Timer interrupt triggers immediately after interrupt enabled

Hello all,I want to disable the timer interrupt in the IRQ Handler and then enable again in the main loop. However the interrupt is triggered nearly immediately after I re-enable the interrupt (setting the UIE bit). I attached my code below. If I dis...

vtran1 by Associate II
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  • 3 replies
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More about STM32H747 ADC

I have an STM32H747i-Disco board and looking at the ADC example (which I have compiled and ran successfully)The example uses channel 18 and GPIO PA0_4 as both master and slave ADC inputs.I would like to use PA0_C and PA1_C as the two ADC inputs but I...

AStew.1 by Associate II
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  • 3 replies
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STM32H755 SDMMC1 and PLL1Q provides unstable clock signal

Hi,I'm attaching a picture of my clock configuration and Logic Analyzer (Saleae Logic Pro 8) so it is easier to see what I'm doing.I have set the SDMMC clock divide factor to 1 in the configuration tab, which should produce a divide factor of 2 in th...

TOlli by Senior
  • 1954 Views
  • 3 replies
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Resolved! Cannot configure VREF on Nucleo-64 STM32G474RE

Hi,Using STM32G474RE board (Nucleo-64). I have tried a lot of different things to configure VREFBUF and none of them have any effect.I'm outputting two voltages on DAC1 at 75% scale and 25% scale and they are always relative to approx 3.25V (which is...

TThai.1 by Associate
  • 821 Views
  • 1 replies
  • 1 kudos

SPI_DMAAbortOnError when trying the spi example dma

Hi I am tryingthe spi dma example for stmH7 nucleo board, it is always takes me to the SPI_DMAAbortOnError function, and it looks like it is because it gives HAL_SPI_ERROR_UDR, any idea what could have caused it? For my master I am using 1Mbps clock ...

TIM2 Retriggerable Output (COMP1_Output ETR)

Hello, I am using an STM32L432KCU and I trying to use the TIM2_CH1 output as a re-triggerable output with TIM2 ETR input connected to COMP1_Output.The configuration done by STM32CubeIDE (version 1.3.0, build 5720_20200220_1053 (UTC)) is the following...

0693W000000WePZQA0.png 0693W000000WeLIQA0.png 0693W000000WeL4QAK.png
simo zz by Senior II
  • 1516 Views
  • 6 replies
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