STM32H743IIT6 + SDRAM + AD9226 Oscilloscope

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Hello.

My name is Bogdan, I am from Romania.
I searched on internet for a simple yet powerful oscilloscope that I can embed in one of the products we use at our company.
We need to read and store 6 channels at >=40MHz, and store 32MB samples for each channel.

All the acquisition must start simultaneous by an external trigger.

I had try to use STM32H743IIT6 + SDRAM (FANKE Board) and an ADC AD9226, to create a simple oscilloscope, but I can not manage to make it work.

If someone have a sollution for this please contact me at nbogdan.contact@gmail.com

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Here is what I am trying to do by now. But even if the nodes of the MDMA are configured and the DCMI get the HSYNC/VSYNC, the acquisition never starts.
The MDMA does not get triggered by the DCMI.

In the last ST HAL, on the MDMA, there is no MDMD_REQUEST_DCMI???

Can someone please point me in the right direction, how I can read continous DCMI data and store to SDRAM, what is
a good approach?
Read first in a buffer using DMA, and move the buffer to SDRAM using MDMA???

eric2013

可以考虑使用STM32H72X或者STM32H73x跟更合适。

STM32H730/H725带的高速并行同步接口PSSI可玩性很高，可以支持高达110MHz的数据采集
https://forum.anfulai.cn/forum.p ... 4656&fromuid=58
(出处: 硬汉嵌入式论坛)

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eric2013 发表于 2025-10-14 09:16
可以考虑使用STM32H72X或者STM32H73x跟更合适。

STM32H730/H725带的高速并行同步接口PSSI可玩性很高，可 ...

Thank you for pointing me PSSI. I did see that you sell an oscilloscope. Can your module be chained to get 6 channels. I need 40MHz minimum acquisition speed. We are building a device that need to sample simultaneously 6 signals, as much as possible data (50Hz signal, minimum 4 full periods at 40Msamples/sec, 12 bit or 14 bit).

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I did purchase from Aliexpress few STM32H723ZGT6 and few W9825G6KH-6I SDRAM. I will make a PCB, and start testing. I will post the PCB here when ready.

Can you please tell me something more regarding data acquisition using PSSI. I don't need DE and RDY for AD9226. Did you test using this ADC???

Some user in this forum say that he has encounter data corruption:
https://forum.anfulai.cn/forum.php?mod=redirect&goto=findpost&ptid=104656&pid=307445&fromuid=95246

Xie Xie!

eric2013

12358132134 发表于 2025-10-15 05:25
I did purchase from Aliexpress few STM32H723ZGT6 and few W9825G6KH-6I SDRAM. I will make a PCB, and  ...

暂时我们这边没有这方面的代码应用。

12358132134

Can you please send me the pdf from:
https://bbs.21ic.com/icview-3433070-1-1.html

From my country I can not make an account.

Thank you!

xxx1234567890

不看国家，还以为是大鹅家的王牌飞行员博格丹呢。我发给你吧

gnail092

12358132134 发表于 2025-10-24 04:21
Can you please send me the pdf from:
https://bbs.21ic.com/icview-3433070-1-1.html

我帮你下了

12358132134

Thank you for your effort!

Any further advancement I make, I will post all schematics and code, here!