rolandvs
/ board_init.c
Created
August 16, 2019 08:49
Micropython with STM32(F091) MCU - Setting the MCO output
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| #include STM32_HAL_H | |
| #include "mpconfigboard.h" | |
| void STM32F091RC_board_early_init(void) { | |
| #if defined(MICROPY_HW_MCO) | |
| /* redirect to: source RCC_MCOSource: prescaler RCC_MCODiv: | |
| * RCC_MCO1: PA8 RCC_MCO1SOURCE_HSI RCC_MCODIV_1 | |
| * RCC_MCO2: PC9 RCC_MCO1SOURCE_LSE RCC_MCODIV_2 | |
| * RCC_MCO1SOURCE_HSE RCC_MCODIV_3 | |
| * RCC_MCO1SOURCE_PLLCLK RCC_MCODIV_4 |
rolandvs
/ NUCLEO-F091RC_UART_CONNECTION.txt
Last active
September 10, 2019 15:01
NUCLEO-F091RC rearranging the UART's
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| # NUCLEO_STMF091RC | |
| The NUCLEO boards have `ST-morpho` connectors and the `Arduino` connectors so anyone can hook up his/her favourite interfaces. | |
| Please refer to document: [UM1724](https://www.st.com/content/ccc/resource/technical/document/user_manual/98/2e/fa/4b/e0/82/43/b7/DM00105823.pdf/files/DM00105823.pdf/jcr:content/translations/en.DM00105823.pdf) | |
| ## Arduino Serial Port | |
| If one would like to use the Arduino connector to connect to a shield, you will run into trouble when the serial interface needs to be used. | |
| The `NUCLEO_F091RC` PCB is not completely configured to work using the standard serial port; the `D0/D1` pins that refer to `PA3/PA2` for UART communication are simply **NOT** connected! |
rolandvs
/ uping.py
Created
December 11, 2019 11:30
— forked from shawwwn/uping.py
µPing: Ping library for MicroPython
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| # µPing (MicroPing) for MicroPython | |
| # copyright (c) 2018 Shawwwn <shawwwn1@gmail.com> | |
| # License: MIT | |
| # Internet Checksum Algorithm | |
| # Author: Olav Morken | |
| # https://github.com/olavmrk/python-ping/blob/master/ping.py | |
| # @data: bytes | |
| def checksum(data): | |
| if len(data) & 0x1: # Odd number of bytes |
rolandvs
/ gist:beb160a9dcd7317966b72bea0e82c4c9
Created
December 27, 2019 09:53
Collecting interesting repositories and tutorials
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| Use of jupyter, docker and a few more to go beyond static gui display ... | |
| https://github.com/jgoerner/beyond-jupyter | |