About Lukasz Przenioslo

Lukasz Przenioslo · 2021-09-26

Hello there,I was trying to figure out a way of how to change the UART baudrate "in runtime" via HAL API for stm32f0. I failed to find a way to do it other than manually (copy out the functionalities used in the uart init function and change it accor...

Lukasz Przenioslo · 2021-03-09

In the stm32g0xx_hal_uart.c file, line 3750 the following function can be found:/** * @brief DMA UART receive process half complete callback. * @param hdma DMA handle. * @retval None */ static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma) ...

Lukasz Przenioslo · 2021-03-09

Hello there,I am trying to find the right RDP config for the STM32G0 MCU. My aim is the following functionality:User code can read/ write the flash,Bootloader/ external SWD debugger cannot read the flash,Bootloader/ external SWD debugger can erase an...

Lukasz Przenioslo · 2021-02-19

Hello,I am trying to enter the system memory at boot time with the STM32G030 MCU. It has the BOOT0 line shared with SWCLK functionality, which is new to me compared to the STM32F* devices. I always entered the system memory in other devices by settin...

Lukasz Przenioslo · 2020-06-28

Hi there,Lets say my device is configured as an SPI slave device with a software NSS pin. The STM32 HAL API doesn't use the SSI bit from CR1 register at all. I was wondering, what actually happens to the SPI peripheral when I manually set or clear th...

Lukasz Przenioslo · 2022-06-03

Hi @Piranha , thank you for the answer. I have changed the code the following way: HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_SET); const char tx1[] = "Application start from RESET \r\n"; const uint32_t size1 = sizeof tx1; const cha...

Lukasz Przenioslo · 2021-09-27

Hi,Its about code encapsulation and portability really.Will figure this out, thank you for the answers!

Lukasz Przenioslo · 2021-09-26

Thank you for the answers guys,As doing it without HAL, I understand how it takes few lines of code, but I need to calculate the new BRR value first based on desired baudrate. For that I need the clock source etc. To not hardcode that, its feasible t...

Lukasz Przenioslo · 2021-05-10

Hi @zsellera ,Thank you for suggesting this solution- wish I had it at the time of dealing with my problem :). Will surely remember about it for the next project.

Lukasz Przenioslo · 2021-03-16

Hi @Guenael Cadier , thank you for answer.I confirm your logic is working- When half callback is called, the status is HAL_UART_STATE_BUSY_RX. When Idle is called, the status is HAL_UART_STATE_READY. It is then possible to derive which event caused ...

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Change baudrate via HAL

UART_DMARxHalfCplt is bugged for STM32G0

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SPI slave and SSI bit

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Re: UART_DMARxHalfCplt is bugged for STM32G0