About PFlor.2

PFlor.2 · 2024-11-15

I'm having an issue when using the DMA with SPI. I'm using the SPI for a 320x240 LCD and want the DMA to help with blocking while transferring large amounts of data with touchGFX.I'm able to paint the screen one color just using the SPI but when I t...

PFlor.2 · 2024-11-14

I am trying to interface a STM32H563 to an LCD using the ST7789v controller over SPI.To test I'm just sending the LCD initialization as specified by the datasheet shown below...//-------------------------------Hardware reset--------------------------...

PFlor.2 · 2024-11-12

I'm using SPI on STM32H563 with DMA to interface to a ST7789 LCD controller. During the LCD initialization I'm using a loop to send a series of command/data bytes using the HAL_SPI_Transmit_DMA() HAL function but the DMA status never goes back to RE...

PFlor.2 · 2024-09-13

I created a project in TouchGFX Designer for the Nucleo-H563ZI dev kit as suggested by ST for projects that use TouchGFX. Once created I imported the existing project into STM32CubeIDE which was fine, however the project explorer in STM32CubeIDE doe...

PFlor.2 · 2024-08-12

The last custom board project I did, the ST contact told me to start with TouchGFX designer (4.20.0) and generate the project from there. Then I was able to import the existing project into STM32CubeIDE. However the new version 4.23.2 does not seem...

PFlor.2 · 2024-11-23

Ok some new information…some progress but more questions.I tried changing the interrupt priority to 0 for both the DMA and SPI which created some interesting results.Just running it this way it appears to have successfully transmitted the first block...

PFlor.2 · 2024-11-20

There are no errors that occur, in the code snippet below the Error_Handler() is not reached (returns HAL_OK). The code hangs on the while loop waiting for the DMA state to change from BUSY to READY. if (HAL_SPI_Transmit_DMA(&hspi3, buf, chun...

PFlor.2 · 2024-11-18

I have this working with just normal SPI now but still the DMA does not release from BUSY. Any ideas?

PFlor.2 · 2024-11-15

I'm having a similar issue on the STM32H563 with the hdmatx->state always staying busy and will not complete.I have both the src and dest width set as bytes/* SPI3 init function */ void MX_SPI3_Init(void) { /* USER CODE BEGIN SPI3_Init 0 */ /* ...

PFlor.2 · 2024-11-14

starting with just SPI and can't get LCD to respond with that either, just be another problem that needs addressed outside of DMA

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STM32H563 and SPI DMA Transfer issue

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