About Zhou JianQiang

Zhou JianQiang · 2024-10-16

Hi I use STM32H743XI and W25Q256 for my design.And I notice W25Q256 has two speed 133Mhz(W25Q256JV) and 104Mhz(W25Q256FV), currently I use W25Q256FV, since I only use this flash with memory map mode, is it necessary to replace with W25Q256JV? Will th...

Zhou JianQiang · 2024-09-26

Hi:I use STM32L4P5RG with APS6404L-3SQR to develop GUI.I want use QSPI PSRAM as data memory for GUI.Now, I enable QSPI PSRAM as data memory as follows:1.configure QSPI PSRAM , SPI with NVIC in CubeMX2. add PSRAM (xrw) : ORIGIN = 0x70000000, LENGTH = ...

Zhou JianQiang · 2024-08-26

Hi :I want to use audio class with AZRTOS, but even I select audio, I still can't find audio in middleware.

Zhou JianQiang · 2024-08-05

Hi I can't find USB device with MTP example.Is there any resource about USB device with MTP?

Zhou JianQiang · 2024-07-31

Hi I want to improve the FPS of TFT when using SPI interface.I use SPI+DMA+QuadSPI PSRAM+QuadSPI Flash for now.I notice STM32L4P5RG has DMA2D.So can it use for SPI interface?Will it have any improvement when I refresh TFT?If it has, how to use it?

Zhou JianQiang · 2024-11-03

Hi :After I debug serval times, I figure out it is a hardware issue.Nothing wrong with the software.

Zhou JianQiang · 2024-10-16

Hi @jiangfan :Thank you for your reply!

Zhou JianQiang · 2024-10-14

Hi @KDJEM.1 :After I test several times, I can reproduce this.Do you have any further advice? I also enable SSHT, but it still can be reproduced.I also notice that I2C will return HAL_ERROR after this happened(confirmed by Uart log, when this happene...

Zhou JianQiang · 2024-10-09

Hi @KDJEM.1 :Thank you for your help.After I set Clock Prescaler from 1 to 2 in Cubemx and CSBOUND to 10, I tested it for 8 hours continuously, it works correctly, so I think this problem should be fixed.But can you help answer question below:1. If I...

Zhou JianQiang · 2024-10-05

Hi @KDJEM.1 :Thank you for your reply.>Please try to decrease the OCTOSPI frequency and let me know if the issue is solved or not?-->I am on vacation and will reply to you within next week, but according to picture below, isn't the clock on the bus 6...

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4 line Nor flash speed during memory map mode

How to enable QSPI PSRAM as data memory

STM32L4 AZRTOS can't use USB device audio class

USB device with MTP

DMA2D with SPI in STM32L4P5RG

Re: How to enable QSPI PSRAM as data memory

Re: 4 line Nor flash speed during memory map mode

Re: How to enable QSPI PSRAM as data memory

Re: How to enable QSPI PSRAM as data memory

Re: How to enable QSPI PSRAM as data memory