nuttx/boards/arm/stm32/olimex-stm32-h407
Xiang Xiao 154852acb5 sched/mqueue: Reduce the initial memory consumption
Change the preallocated message and descriptor from 32/24 to 4.
The total size is reduce from 1892 to 532

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I79d199465daef678986868f773876289859f42fc
2020-08-10 08:07:50 +02:00
..
configs sched/mqueue: Reduce the initial memory consumption 2020-08-10 08:07:50 +02:00
include Run codespell -w with the latest dictonary again 2020-02-23 22:27:46 +01:00
scripts boards: Move toolchain related variables to Toolchain.defs 2020-07-20 17:10:37 +01:00
src CI check: fix nxstyle warning 2020-07-02 01:53:23 -05:00
Kconfig
README.txt Run codespell -w with the latest dictonary again 2020-02-23 22:27:46 +01:00

README
======

The Olimex STM32-H407 configuration is based on
stm32Fdiscovery and Olimex STM32-H405.

The H407 was programmed with ST-LINK/V2 from both Win8.1 and Ubuntu 14.04
This release provides baseline for H407 12MHZ clock in include/board.h

nsh - Only basic shell response tested on USART2
nsh_uext - Basic shell response tested on USART6 (UEXT)

Development Environment
=======================

Either Linux or Cygwin on Windows can be used for the development environment.
The source has been built only using the GNU toolchain (see below).  Other
toolchains will likely cause problems.

LEDs
====

The H407 board has 1 Status LED;

SDCard
======

Expects to be plugged in else hangs. TODO: Shouldn't hang.
SDIO 4bit with pulls/downs on pins. Doesn't have a SD card detect pin.

UARTs
=====

On the H407 board, ?? all uarts are available for pin mappings
USART2 can be used for nsh console like on Discovery board,
or you can use USART6 exposed via UEXT connector.

Olimex offers MOD-RS232 voltage level converter for the UEXT so it can be
attached to computer serial port.

STM32-H407-specific Configuration Options
===============================================