About CSmit.4

CSmit.4 · 2024-10-11

Hello, we have an STM32CubeIDE project based on the STM32U545. Unfortunately, our first version of PCB's is due to arrive soon populated with the STM32U535 instead, due to parts shortages. My question is, can I use the IDE to load and debug the code ...

CSmit.4 · 2024-07-15

AN2606 does a very good job of describing communication peripheral usage by the bootloader, but not so much GPIO pins.Can I get a description of how each of the GPIO pins on the ST32U545REI6Q is configured by the bootloader? This could be important i...

CSmit.4 · 2023-03-28

We are using the STM32G0B1CC and have noticed that if we call HAL_ADCEx_Calibration_Start() too soon after calling HAL_ADC_Init() that the CALFACT register comes back as 0. If we insert a substantial delay, say 20 ms between the 2 calls, CALFACT is p...

CSmit.4 · 2022-10-06

CSmit.4 · 2021-01-21

hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.ScanConvMode = ADC_SCAN_SEQ_FIXED; hadc1.Init.EOCSelection ...

CSmit.4 · 2023-03-29

Thank you Romain. I tried your suggestions, but the problem persisted. I then finally realized the issue was a power sequencing one. The signal that provides the ADC reference voltage was asserted AFTER the ADC calibration was being performed.

CSmit.4 · 2022-10-06

FIgured it out - those channels stay grayed out until the Sequencer is set to "not fully configurable" in the ADC parameter dialog.

CSmit.4 · 2021-02-08

Hi Imen,,Thank you for that insight. That makes sense. It does seem a little awkward to keep removing a channel after each conversion, but it is good to know that is how it works. I feel like the workaround we are using, calling LL_ADC_REG_SetSequenc...

CSmit.4 · 2021-01-27

Verified the problem still occurs with 1.4.0

CSmit.4 · 2021-01-26

STM32G0 MCU package 1.30...I will update to 1.40 and re-test. The ADC configuration was originally created using CubeMX, but the actual application (polling one channel then the next, then the next), is where the problem occurs.None of the ADC exam...

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Loading code on STM32U535 vs STM32U545

STM32U545REI6Q Bootloader GPIO config

What is the required timing between ADC initialization and calibration on the STM32G0B1?

In STM32CubeMx I'm trying to setup the ADC channels on the stm32g031g6, and dont understand why channels in15 - in18 are grayed out. The datasheet says this part supports 15 + 2 channels. Is there some register I need to setup to get access to in15?

I believe there is a bug in HAL_ADC_ConfigChannel(). Using the STM32g071, with ADC_SCAN_SEQ_FIXED, ADC_EOC_SINGLE_CONV, and NbrOfConversion == 1, when HAL_ADC_ConfigChannel() is called, it OR's in the new channel number, which is incorrect.

Re: What is the required timing between ADC initialization and calibration on the STM32G0B1?

Re: In STM32CubeMx I'm trying to setup the ADC channels on the stm32g031g6, and dont understand why channels in15 - in18 are grayed out. The datasheet says this part supports 15 + 2 channels. Is there some register I need to setup to get access to in15?

Re: I believe there is a bug in HAL_ADC_ConfigChannel(). Using the STM32g071, with ADC_SCAN_SEQ_FIXED, ADC_EOC_SINGLE_CONV, and NbrOfConversion == 1, when HAL_ADC_ConfigChannel() is called, it OR's in the new channel number, which is incorrect.

Re: I believe there is a bug in HAL_ADC_ConfigChannel(). Using the STM32g071, with ADC_SCAN_SEQ_FIXED, ADC_EOC_SINGLE_CONV, and NbrOfConversion == 1, when HAL_ADC_ConfigChannel() is called, it OR's in the new channel number, which is incorrect.

Re: I believe there is a bug in HAL_ADC_ConfigChannel(). Using the STM32g071, with ADC_SCAN_SEQ_FIXED, ADC_EOC_SINGLE_CONV, and NbrOfConversion == 1, when HAL_ADC_ConfigChannel() is called, it OR's in the new channel number, which is incorrect.