About Bertha

Bertha · 2023-06-07

Hi,This is driving me crazy, let me explain.Setup : NucleoU575 with MX25R6435F in QSPI with wire jumper cables. Here's a code adapted from an ST example for the stm32l496g_discovery.The modifications were minor, and we simplified it to the maximum, j...

Bertha · 2023-04-10

Step to reproduce :In cubeMX:Select NucleoU575ZI.Clean all pinSet OCTOSPI to QSPI (see code below)Configure GPDMA (see code below)/* USER CODE BEGIN Header */ /** ****************************************************************************** * @f...

Bertha · 2023-02-10

I did not tested if this is specific to all MCU but for U5 familly this is sure:How to reproduce : Launch cubeMX, (6.7.0)select U5 board like nucleoGo to project manager, and select under Toolchain - Makefile.--> Bug, the Makefile genereted is missin...

Bertha · 2022-11-12

Hi, I am Driving an AMOLED display (GRAM) with QSPI.In blocking mode everythings works fine, but now I trying to "update" it using GPDMA, nothing works. Any advices ?So in blocking mode I used the typical : OSPI_RegularCmdTypeDef sCommand = {0}; sC...

Bertha · 2022-03-01

Dear All,The display we are using is RGB332, natively this is not supported by Touch GFX.Is it possible to develop custom color format or we need to trick it by using ARGB2222 and convert pixels.Thanks for your help.Regards

Bertha · 2023-11-11

Haha, you right but it took me 5 months to come back and share exp ;).It got a bit tricky because those jumpers are reliable and work perfectly in many applications. However, they showed their limitations when dealing with higher-speed QSPI." This wa...

Bertha · 2023-11-11

Dear ST Forum Members,I wanted to share an experience some of you might find helpful:Initially, everything seemed fine with the code, but we encountered an issue that we traced back to the jumper cables. They were either too long or of subpar quality...

Bertha · 2023-06-10

Hi Pavel,Good idea, so I tested with sector != 0 and offset != 0.I performed the test using the address 0x21005. Surprisingly, I obtained the exact same results with the same issue occurring. The small row of data is not working while the larger one ...

Bertha · 2023-06-10

Dear S.Ma,Thank you for the advice. Yes, I followed it, and there was no mention of this on the OSPI part. This is a valuable tip to always check this file. In some cases, I have wasted a lot of time by not reading it.Regards

Bertha · 2023-06-08

Thanks, Pavel A., for taking the time to review the issue.You are absolutely right, the OSPI HAL polling function for U5 is different from QSPI from L4. However, I did consider this point while adapting the code.In my case, the polling seems to be wo...

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STM32U5 with MX25R6435F is madness ?

HAL_OSPI_Transmit_DMA not working for NbData > 0xFFFF .

Bug in CubeMX generating Makefile, missing some CPU info.

STM32U5 - OSPI - GPDMA. Driving an AMOLED display (GRAM) with QSPI - blocking mode working but not with GPMDA.

Is custom color format possible ?

Re: STM32U5 with MX25R6435F is madness ?

Re: STM32U5 with MX25R6435F is madness ?

Re: STM32U5 with MX25R6435F is madness ?

Re: STM32U5 with MX25R6435F is madness ?

Re: STM32U5 with MX25R6435F is madness ?