About elKarro

elKarro · 2025-01-08

Hi, any idea about why stm32xx_hal_uart functions write to USART control registers by ATOMIC_CLEAR_BIT()/ATOMIC_SET_BIT(), while homologous stm32xx_hal_usart functions write to the same registers by CLEAR_BIT()/SET_BIT()?In example:UART_DMATransmitCp...

elKarro · 2024-04-11

Premises:- built with gcc version 11.3.1 20220712 (GNU Tools for STM32 11.3.rel1.20230912-1600)- verified on STM32L151RC- cross reference to crc: https://reveng.sourceforge.io/STM32L1xxxx CRC module can compute crcs compliant to the following 4 stand...

elKarro · 2024-03-07

Applies to: STM32L100xx, STM32L151xx, STM32L152xx, STM32L162xx.Hi,in order to write robust drivers, I'm kindly asking a few questions to developers who are into the silicon design. This is the 1st:ref. RM0038 Reference manual Rev 18, paragraph 27.6.1...

elKarro · 2019-07-04

Hi, I'm evaluating STM32CubeIDE version 1.0.1.It has started badly, the file startup_stm32l151xc.s is missing in the generated code for STM32L151RC, I found it as an external reference in mx.scratch.Also the linker script STM32L151RCTx_FLASH.ld is mi...

elKarro · 2017-04-22

Posted on April 22, 2017 at 13:10Hi, I'm having an issue on STM32L151RC with HAL_FLASH_OB_Launch(), simplifying:if (HAL_FLASH_OB_Unlock() == HAL_OK){ HAL_FLASH_OB_Launch(); while (1);}MCU seems to fall in an undefined state.Certainly GPIO peri...

elKarro · 2025-01-09

Thanks for the clarification.

elKarro · 2025-01-09

I think I haven't a genuine need for both, since I always write my own drivers :)I only read HAL code to try to fill the lack of documentation and this time a neglected module adds even more chaos.USART has a S (sync) more than UART, the peripheral s...

elKarro · 2024-10-15

Nevermind my previous reply.After digging into HAL sources I can summarize:The interrupt sources in the register FDCAN.IE are grouped into 7 source groups in the register FDCAN.ILS.The register FDCAN.ILE allows to enable 2 different interrupt lines: ...

elKarro · 2024-10-13

Hi Tobe, I'm puzzled too.From the auto-generated stm32g4xx_it.c :void FDCAN1_IT0_IRQHandler(void) {HAL_FDCAN_IRQHandler(&hfdcan1);}void FDCAN1_IT1_IRQHandler(void) {HAL_FDCAN_IRQHandler(&hfdcan1);}and HAL_FDCAN_IRQHandler() doesn't care about the cal...

elKarro · 2024-04-17

Thank you very much @STea !Maybe this post clarified that joke you asked me about :- DThanks again.

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An odd difference between homologous functions in hal_uart vs hal_usart.

Use of STM32L1xxxx CRC module for the computation of several CRC standards

USART_SR, clearing sequence of: IDLE, ORE, NF, FE, PE. A silicon level analysis.

options to get startup and linker script files from code generation

Option Byte Loading (OBL_LAUNCH) fails

Re: An odd difference between homologous functions in hal_uart vs hal_usart.

Re: An odd difference between homologous functions in hal_uart vs hal_usart.

Re: FDCAN interrupt lines in the manual...

Re: FDCAN interrupt lines in the manual...

Re: USART_SR, clearing sequence of: IDLE, ORE, NF, FE, PE. A silicon level analysis.