About GeertZelf

GeertZelf · 2024-02-21

Recently I was confronted with a problem with TouchGFC in combination with ThreadX.I am developing a project with an STM32L4R7ZITx. The display is a 480x272 LTDC display. Everything was running smoothly until I changed the startup code for adding an ...

GeertZelf · 2023-11-16

Hi all,I am in the process of bringing up a prototype board with a STM32L4R7ZIT6. I'm using CubeMX and use it for generating the startup code. I've configured a lot of peripherals.When I configure PG10 as an input, the CPU crashes. Exactly at the mom...

GeertZelf · 2023-11-16

Hi all,I am in the process of bringing up a prototype board with a STM32L4R7ZIT6 up. I'm using one DAC channel via the opamp. This is working all right, until I designate the default output of the DAC to another function e.g. dig output. The DAC is c...

GeertZelf · 2024-04-04

Hi RichH81,eventually I skipped the DAC and used a timer with PWM and a low pass filter. The filter hardware was already implemented, so I only had to adjust the value of the R and the C. In no way I could get the DAC running via the opamp and free t...

GeertZelf · 2023-11-30

Anyone any idea?

GeertZelf · 2023-11-22

Hi MasterT,I did all that. I also made a new project with only the DAC and OPAMP configurated. It worked as expected correctly. Then I configured PA4 as output. Now there was a fixed value of 0.4V on the output signal on the OPAMP. I compared the ini...

GeertZelf · 2023-11-17

Hi MasterT,The DAC # is 1, the only DAC in this MPU, Channel is 1, OPA# is 1, GPIO is PA4, exclusively designated to DAC1 channel 1. OPA output is on PA3In my IO-setting, I need PA4 for its function as 'spi1_nss'. For my application, I like to lower ...

GeertZelf · 2023-11-17

Hi MasterTAccording to the manual and CubeMX, the DAC can be connected to 'internal peripherals only ' In that situation the outputbuffer is disabled by CubeMX. So the physical IO is disconnected. And therefor should not have any influence on the DA...

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CubeIDE failing on ThreadX in combination with TouchGFX

Processor crash on PG10 initialisation

DAC via opamp follower

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