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Louis Cloete work
Associate III
since ‎2020-01-15
‎2023-06-27

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  • 20 Posts
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STM32L4 HAL UART DMA does not recover after error

2023-01-17
The exact issue I am experiencing with the STM32L4 series (both L476 and L412), is described here: https://stackoverflow.com/a/71297149/10909834The solution I came to independently is to reinitialize the uart. I used HAL_UART_DeInit() followed by HAL...

Is TouchGFX GUI with Bridgetek FT81x graphics co-processor possible? Already available?

2022-09-26
I'm in the process of evaluating options for a 5" display. We're looking at using the FT81x controller with lvgl or TouchGFX. I want to find out if TouchGFX can be used to drive the FT81x chip.I do know lvgl can do something along those lines, but we...

STM32L476 TouchGFX performance with 2.4" touch screen concurrently with other tasks

2021-12-03
I am becoming interested in TouchGFX, and I want to know how it performs on STM32L476 for a 2.4" 240x320 touch screen. The chip is already doing some other control tasks, mostly digital I/O and bitbang SPI to control other chips, and 2 UART control i...

STM32L476 -flto causes WWDT interrupt to trigger even though WWDT is disabled.

2021-10-28
Hi! I have a project in which I tried to enable LTO for release builds. Issue is that the code hangs before entering the main loop. Upon investigation, I found that an interrupt is triggered: the code gets stuck in the default implementation for the ...

HAL with CubeMX ADC2 deinit causes ADC1 to read vrefint channel incorrectly.

2020-10-02
I've had some issues to calculate the correct VREF+ voltage for the ADC on an STM32L476RGT6 MCU. After some investigation, I isolated the cause to be that I called `HAL_ADC_DeInit()` on ADC2 after I used it during setup before the main loop. If I jus...
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