About Snowopolis

Snowopolis · 2020-06-25

My application has a few hundred bytes of data that need to be stored in flash. It won’t change often, but will be changed. I’d like to reserve an address range. I know how to read/write flash. Not sure how to decide where to put the data. Any mech...

Snowopolis · 2020-06-16

I'm using STM32CubeIDE 1.3.1 w/ a Nucleo L4R5ZI board. I can transmit via the lpuart1 with the polled version - HAL_UART_Transmit(...). The interrupt is enabled in the NVIC. Changing to the HAL_UART_Transmit_IT(...) and board stuck repeatedly callin...

Snowopolis · 2020-06-17

It amazes me how many times I stared at and walked through that code before I noticed it was passing the wrong uart! :beaming_face_with_smiling_eyes: :face_with_tears_of_joy: :sad_but_relieved_face:

Snowopolis · 2020-06-17

Solved! - The problem is, as I suspected, with the generated code. I noticed that it was adding an "UART_HandleTypeDef huart1;" to main.c but uart1 wasn't enabled. Odd, but seemed benign. The root of the issue is that the generated LPUART1_IRQHandle...

Snowopolis · 2020-06-16

lpuart1 can send data. Works fine with the polled transmit function (HAL_UART_Transmit). Does not work with interrupt transmit function (HAL_UART_Transmit_IT).

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Is there a way I can reserve a region of flash to read/write at runtime? I’m using STM32CubeIDE.

LPUART1 not working with interrupts via HAL_UART_Transmit_IT(...) function

Re: LPUART1 not working with interrupts via HAL_UART_Transmit_IT(...) function

Re: LPUART1 not working with interrupts via HAL_UART_Transmit_IT(...) function

Re: LPUART1 not working with interrupts via HAL_UART_Transmit_IT(...) function