rt-thread-official/bsp/stm32/stm32mp157a-st-ev1
Bernard Xiong 36d5154256
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README.md

STM32MP157A-EV1 BSP Introduction

中文页 |

Introduction

This document records the execution instruction of the BSP (board support package) provided by the RT-Thread development team for the STM32MP157A-EV1 development board.

The document is covered in three parts:

  • STM32MP157A-EV1 Board Resources Introduction

  • Quickly Get Started

  • Advanced Features

By reading the Quickly Get Started section developers can quickly get their hands on this BSP and run RT-Thread on the board. More advanced features will be introduced in the Advanced Features section to help developers take advantage of RT-Thread to drive more on-board resources.

STM32MP157A-EV1 Board Resources Introduction

The STM32MP157A-EV1 is a development board based on a dual Cortex-A7 and Cortex-M4 core. The Cortex-A7 core operates at 650 MHZ and the Cortex-M4 operates at 209MHZ. There is no Flash inside the STM32MP157A.

board

The mainly-used on-board resources are shown as follows:

  • MCU : STM32MP157AAAx
  • Common peripherals:
    • 4 LEDs: LD4(PD8), LD5(PD9), LD2(PA13), LD3(PA14)
    • 4 Buttons: WAKE_UP, RESET (NRST), USER1(PA13), USER2 (PA14)
  • Common-used interface: USB, SD card, Ethernet, MIPI, USB HOST, Audio, HDMI, Arduino.
  • Debug interface: Standard JTAG/SWD.

For more details about this board, please refer to the ST official documentation:

STM32MP157A-EV1 Development board introduction

Peripheral Condition

Each peripheral supporting condition for this BSP is as follows:

On-board Peripheral Support Remark
USB TO UART YES
PMIC NO
CAMERA NO OV5640
MFX NO
FMC NO MT25F8G08A8ACAH4
QSPI FLASH NO MX25L51245G
OpenAMP NO
POWER NO
SD Card (SDMMC1) NO
EMMC(SDMMC2) NO
ETH NO
AUDIO NO WM8994
On-chip Peripheral Drivers Support Remark
GPIO YES
UART YES UART4 (ST-Link)
EXTI YES
SPI YES
TIM YES
LPTIM YES
I2C YES Software
ADC YES
DAC YES
WWDG YES
MDMA NO
SPDIFRX NO
DFSDM NO
PWM NO
FDCAN NO
CRC NO
RNG NO
HASH NO

Execution Instruction

Quickly Get Started

This BSP provides MDK4,MDK5 and IAR projects for developers. Also support GCC development environment,Here's an example of the MDK5 development environment, to introduce how to run the system.

Hardware Connection

Use a USB cable to connect the development board to the PC and turn on the power switch.

Compile And Download

Double-click the project.uvprojx file, to open the MDK5 project, compile and download the program to the board.

By default, the project uses ST_LINK simulator to download the program, when the ST_LINK connects the board, clicking the download button can download the program to the board.

Running Results

After the program is successfully downloaded, the system runs automatically. Observe the running results of the LED on the development board, the orange LD4 will flash periodically.

Connect the serial port of the board to PC, communicate with it via a serial terminal tool (115200-8-1-N). Restart the board and the startup information of RT-Thread will be observed:

 \ | /
- RT -     Thread Operating System
 / | \     3.1.1 build Nov 19 2018
 2006 - 2018 Copyright by rt-thread team
msh >

Drivers

1. DAC
  • Open the Env tool under this BSP;
  • Enter the menuconfig command, enter the Hardware Drivers config and open DAC, save and exit;
  • Enter the scons --target=iar command to regenerate project.
Finsh

Before you use a device, you need to find out if the device exists, and you can use the name of the DAC device that is enrolled with the command dac probe . As shown as follows.

msh />dac probe dac1
probe dac1 success

Enable the channel of the device can use the command dac enable followed by the channel number.

msh />dac probe dac1
probe dac1 success

Set up the data of the channel for a DAC device can use the command dac write followed by the channel number.

msh />dac write 1 1000
dac1 channel 1 write value is 1000

Disable the channel of the device can use the command dac disable followed by the channel number.

msh />dac disable 1
dac1 channel 1 disable success

Advanced Features

This BSP only enables GPIO and serial port 4 by default. If need more advanced features, you need to configure the BSP with RT-Thread Env tools, as follows:

  • Open the Env tool under this BSP;
  • Enter the menuconfig command to configure the project, then save and exit;
  • Enter the pkgs --update command to update the packages;
  • Enter the scons --target=iarcommand to regenerate the project.

Notes

  • Before downloading the program, set the board to the mode of "Engineering Mode". The BOOT switch sets to BOOT0=0,BOOT1 = 0 and BOOT2=1, as shown below:

boot

  • If need to reburn the program, please reset the development board.

Contact Information

accendant: