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Resolved! Understand bxCAN TX mailbox

Hi all I want to understand behavior of TX mailbox here I am trying to send three ID but only i able to see two ID at a time in TI0R. I have fewer doubts which I hope you can clear. Doubt 1:  Do I have to use three different mail box for three ID or ...

Ash1 by Associate III
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  • 3 replies
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Resolved! The use of BIST receive mode bit in UCPD of STM32G474

I don't know the function of the BIST receive mode bits in the picture. According to the description, when this bit is enabled, the protocol layer cannot receive data. So, what does this model do? Please help me resolve this confusion. Thanks   *T...

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AgoDream by Associate II
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Resolved! STM32H753 Boot From External eMMC Memory?

Hi,I am using STM32H753XI in my ongoing design. We are using most of the timers and internal ADCs in our application. So it is very tough for me accommodate both external eMMC and NOR flash interface.  My question is, Can we boot STM32H753 with exter...

DJ_IND by Associate II
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  • 1 replies
  • 1 kudos

STM32VBT6 bootloader memory alignement

Hello,I am writing a programm for a raspi cm4 to flash a programm on an STM32 using the UART bootloader. The raspi parses some hex file that I want to flash and sends data packets to the bootloader using the 0x31 write command. Here is what I have ac...

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Precise SPI Timing with Timer and DMA on H7

Hello everyoneI need to implement a protocol for an external ADC. An SPI read with 22 bits should be triggered via a timer in a 4us cycle.      My procedure:TIM2 triggers a DMA transfer from the TxBuffer into the SPI->TXDR (with some zeros)Since CSTA...

spi_protocol.png spi.png
simae by Associate
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Resolved! Having Issues with classic CAN on STM32H745

Hello Team,We got our board booted up recently and Currently testing out CAN with classic mode. All our external devices support Classic CAN mode and even after configuring it with 500kps, It doesn't seem to transmit data.Please, find the attached MX...

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SRST error when trying to run openocd on stm32f4

i got a stm32f4 and wrote some code to it, then tried to run openocd  and got this error my openocd.cfgnote - i reflashed the stlink a couple of times and changed it to jlink(and then back to stlink) so that might have something to do with it.would v...

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penjo989 by Associate
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  • 2 replies
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Resolved! TRACECLK freq. in STM32H5

I do not see any information on the datasheet or reference manual, how is the TRACECLK in STM H5 (particularly 563 if it matters) derived ? Is the TRACECLKIN SYSCLK or FCLK ?

mete by Senior II
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  • 3 replies
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