MG32F157 Standard Peripherals Firmware Library
SPI1 SPI_Slave example
  ****************** (C) COPYRIGHT 2023 Megawin Technology *******************
  * @file    SPI/SPI_Slave/readme.txt 
  * @author  Megawin Application Team
  * @version V0.0.4
  * @date    16-June-2023
  * @brief   Description of the SPI1 Slave example.
  ******************************************************************************
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, MEGAWIN SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
  * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM
  * THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  ******************************************************************************
Example Description

This example describes how to use the SPi firmware library to manipulate SPI peripherals to achieve bidirectional communication between the host and slave in SPI full duplex mode.

In this example, Main clock is from PLL clock and it is configured at 96MHz. The PLL clock is based on 8MHz HSE. APB1 clock is the 2 frequency division of the Main clock, APB2 clock is from Main clock.

This example does the following:

  • Initialize and configure the SPI1 communication rate to be 3 Mbit/s, and serve as the SPI host in dual-line full-duplex mode.
  • Initialize and configure the communication rate of SPI2 as 12 Mbit/s, as SPI slave, double line full duplex mode, enable SPI send and receive interrupt.
  • SPI1 sends and receives SPI data in rotation mode and SPI2 sends and receives data in interrupt.
  • Use USART1 to print the sent and received data after the communication, and compare whether the sent and received data are consistent.
Directory contents
  • SPI/SPI_Slave/SPI_Slave.uvprojx MDK5 project file
  • SPI/SPI_Slave/SPI_Slave.uvoptx MDK5 project options file
  • SPI/SPI_Slave/JLinkSettings.ini Jlink settings file
  • SPI/SPI_Slave/main.c Main program
Hardware and Software environment
  • Hardware environment
    • HSE crystal is 8MHz
  • Chip pin connection is as follows:
    • PA4 pin is connected to PB12
    • PA5 Pin is connected to PB13
    • PA6 pin is connected to PB14
    • PA7 pin is connected to PB15
How to use it ?

In order to make the program work, you must do the following :

  • Open SPI_Slave.uvprojx from this example folder by Keil MDK5
  • Rebuild all files and load your image into target memory
  • Run the example

    © COPYRIGHT 2023 Megawin Technology