About JSchu.5

JSchu.5 · 2024-08-13

I've successfully set up an evaluation project on the STM32U5A9J-DK PCB with a custom 640x480 MIPI/DSI display in video mode. I've also configured the HexaSPI PSRAM in memory-mapped mode at 160MHz, which I've verified with a scope. My memory tests ha...

JSchu.5 · 2022-10-11

I'm using a STM32L4P5G Discovery Kit board with the external OctoSPI PSRAM in memory mapped mode to store a framebuffer for a SPI display. The board runs at 120MHz and uses the board support file by ST for initialization. The SPI transfer to the disp...

JSchu.5 · 2022-09-23

Hi everybody, I'm trying to delete a single sector of my STM32L4P5G Discovery Board MX25UM51245G OctoSPI Flash memory but I always end up in a timeout. Reading memory by function BSP_OSPI_NOR_Read() is working as expected. I'm using the bord support ...

JSchu.5 · 2021-12-06

I'm running a STM32L073 to generate a sine wave tone via I2S in normal DMA mode. The amplifier is a MAX98357A. The MODE pin is connected to VDD so only left channel is considered. I2S runs at 48kHz and the uC clock source is internal. The output tone...

JSchu.5 · 2021-03-08

Hi all,I'm tying to use the ITM printf on my STM32H723 Nucleo board in my Keil project without success. I configured the HAL with CubeMX and add the initialization for the SWD_Init(). I enabled tracing in Keil but I do not get any output. I checked:S...

JSchu.5 · 2022-09-26

Thank you for your response. The example code for this discovery board is working as expected. I did not know this project is existing. Thanks for the hint.

JSchu.5 · 2022-09-23

Thank you for your reponse. I know that I have to wait for the earase to terminate but I do not run into the wait instruction because of the previous timeout. What do you mean by clear the sCommand structure? Reset to 0? Where?

JSchu.5 · 2021-03-09

@PTiha so half clock frequency is working for you as well?

JSchu.5 · 2021-03-09

I agree but that wasn't the problem here. I configured Keil for 2MHz clock and did the same in my inital SWD_Init(). But I measured 1MHz instead of 2MHz. Then I adapted the prescaler in SWD_Init() by half and everythink worked. Now I'm wondering why....

JSchu.5 · 2021-03-09

Today I used my oszilloscope to measure the frequency of the SWO signal (Resistor on SB32). I followed the guide https://www.keil.com/appnotes/files/apnt_297_v102.pdf on page 4. I discovered that the signal was running at 1MHz not at 2MHz as expected...

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User Activity

Run custom MIPI display with double buffering in external HexaSPI PSRAM on STM32U5A9J-DK

Multiple bus master access to OSPI PSRAM on STM32L4P5G-DK

Sector erase OSPI on STM32L4P5G Discovery Board timeout

Crack at the end of I2S tranmission via DMA on STM32L073

Using ITM printf on STM32H723 Nucleo board

Re: Sector erase OSPI on STM32L4P5G Discovery Board timeout

Re: Sector erase OSPI on STM32L4P5G Discovery Board timeout

Re: Using ITM printf on STM32H723 Nucleo board

Re: Using ITM printf on STM32H723 Nucleo board

Re: Using ITM printf on STM32H723 Nucleo board