About Oleg Skydan

Oleg Skydan · 2018-12-28

Hi, All!I saw the new DMA2D modes appeared in the rev.5 of the Reference Manual (see page 709, field MODE of the DMA2D->CR). They are:100: Memory-to-memory with Blending and fixed color FG (BG fetch only with FG andBG PFC active)101: Memory-to-memory...

Oleg Skydan · 2017-09-22

Posted on September 22, 2017 at 15:55Hi, All!I have made a board with STM32H743 (ES32H743 rev.Z datecode 633) and ported quite a big STM32F746 project to STM32H743. The works is not yet finished, but I have some questions and information that can be...

Oleg Skydan · 2017-09-26

Posted on September 26, 2017 at 19:49You should not use this rev.Z since there are different of issue on variaous IPs.I will use newer revision chips when they will be available here. It is not for production just for evaluation of the new STM32H7 f...

Oleg Skydan · 2017-09-26

Posted on September 26, 2017 at 17:22Hi, Emmanuel,Thanks for clarification! I know the MCU I use is engineering sample. If you are aware of rev.Z errata can you please tell are there any problems with SPI+DMA data reception in the rev.Z MCUs? I get ...

Oleg Skydan · 2017-09-23

Posted on September 23, 2017 at 14:53Ladies and Gentlemen, I apologies - the second problem was related to hardware failure here (one of the lines between SDRAM and MCU was broken because of PCB defect). So:1. The first problem is there, but the sol...

Oleg Skydan · 2017-09-23

Posted on September 23, 2017 at 12:04Figure 33 from the stm32h743 datasheet gives an explanation why such address bus connection should work:As you can see FMC issues column address for each word being write to the SDRAM (the same is true for the re...

Oleg Skydan · 2017-09-23

Posted on September 23, 2017 at 11:42So, I did some more detailed investigation of what is going on with DMA2D. Here is a first gdb console screenshoot:You can see I programmed DMA2D to fill the 8 words (16bit pixels) starting from the 0xD0000000 ad...

User statistics

User Activity

Are new DMA2D modes specified correctly in the Rev.5 Reference Manual?

STM32H743 possible bug, or two :)

Re: STM32H743 possible bug, or two :)

Re: STM32H743 possible bug, or two :)

Re: STM32H743 possible bug, or two :)

Re: STM32H743 possible bug, or two :)

Re: STM32H743 possible bug, or two :)