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pabian · 2022-07-19

I am trying to operate 480x272 RGB LCD, SDRAM(for graphic memory), flash memory(for log), BLDC motor, wifi, sound, freeRTOS. At first, it was implemented with STM32F767IIT (flash-2MB, ram-512KB). Since there are too many pins connected to SDRAM and L...

pabian · 2021-11-28

If the Data cache is disabled to solve dma data coherency, it reduce performance a lot? I know functions SCB_ClearDCache(), SCB_InvalidateDCache() to solve that issue. But there is a risk that an error message will not occur even if omitted by mista...

pabian · 2021-11-04

<configuration>FreeRTOS, STM32F767, flash memory(W25Q128)using SPI5_Tx/Rx with DMAFull duplex, 4 line, 8 bits, Prescaler = 2, CPOL=Low, CPHA=1 Edge (Mode 0)DMA2_Stream3 for Tx (Very High Priority), DMA2_Stream4 for Rx (Very High Priority) Normal Mod...

pabian · 2021-10-26

When the button on the LCD is pressed, the relevant screen is displayed and data (6000 bytes) must be saved. When the button is pressed, the screen is displayed without any problem, but a DMA error occurred in the process of writing data to the memor...

pabian · 2021-02-07

clock configurationMCU: STM32F767IITIDE/Debugger: STM32CubeIDE / SEGGER J-LinkWhen HAL_PWREx_EnableOverDrive() is executed after changing the block size of SPI Flash, the following error occurs: Break at address "0x64da2200" with no debug informatio...

pabian · 2021-10-26

STM32F767Is it okay to ignore FIFO errors and OVR errors when not in use?When a SPI DMA error occurred, it was not confirmed that other error flags were set other than the FEIF and OVR flags. Is there any other reason for the DMA error to occur? The ...

pabian · 2021-10-26

As you said, it was a matter of priorities. When the priority of the SPI DMA request and the priority of the task executing SPI DMA were increased, no DMA error occurred. Thanks a lot.

pabian · 2020-08-30

Here's what I did:create STM32CubeIDE 1.4.0 project with STM32429I-EVAL template (FW_F4_1.25.0)create TouchGFX 4.14.0 project with STM32F429I-EVAL template (FW_F4_1.24.2)integrate TouchGFX project into STM32CubeIDE project ( copy & paste of *.ioc, ma...

pabian · 2020-08-25

I solved. open PowerShell in Windowsmove to the TouchGFX project folder location (C:\TouchGFXProjects\Myapplication created from TouchGFX desinger)call <tgfx.exe directoy path>\tgfx.exe -d MyApplication (*MyApplication.touchgfx file must be in the M...

pabian · 2020-08-24

Hi Martin,In the article for creating an application template, " Open a TouchGFX Environment console and execute the following command in the parent directory of the application:"What is the touchGFX Environment console? How I open it?

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Is there a development board that implements MIPI-DSI LCD?

1. Data cache disable issue, 2. flash interface (AXI vs. TCM)

When a new value is transmitted in SPI Write mode, the value that was transmitted immediately before is transmitted again.

SPI DMA error is occurred when the other DMA(memory-to-memory) is used.

Error occurs when HAL_PWREx_EnableOverDrive() is executed.

Re: SPI DMA error is occurred when the other DMA(memory-to-memory) is used.

Re: SPI DMA error is occurred when the other DMA(memory-to-memory) is used.

Re: touch action problem

Re: Hello, I'm new with TouchGFX, I would like to use an Application template with a different display resolution and size.

Re: Hello, I'm new with TouchGFX, I would like to use an Application template with a different display resolution and size.