Contributed by 黎明将至!, organized by Ai-Thinker

Ai-WB2-32S SPI Writing to an SD Card

Preface

This article explains how to use the SPI peripheral to write files to an SD card. Here is the source code link: Baidu Netdisk (extraction code: 1234)https://pan.baidu.com/s/1lCu8Ejf9bgUP782HrzzLTw Extraction code: 1234. Click to view the flashing process. The following mainly introduces the usage process.

1. Preparation

Six Dupont wires
An SD card reader module
An Ai-WB2-32S module (note: the module must be of the built-in Flash type)
An SD card
A Type-C cable
A card reader

2. Porting Steps

Step 1. Download the code files

Step 2. Copy the compressed file to the virtual machine and unzip it

Step 3. Copy the spi files to

Step 4. Flash the firmware (since the internal files have already been compiled, you only need to flash)

You can view the firmware flashing process in step 5 of the link.

3. Testing

Step 1. Connect the module to the host

Step 2. Open the serial port debugging assistant

Step 3. Connect the 32S module and the SD card reader module

Wiring correspondence Ai-WB2-32S SD card reader module IO3 CLK IO17 MISO IO4 CS IO12 MOSI GND GND 5V VCC

Step 4. Press the RST key on the Ai-WB2-32S module (reset)

Step 5. Check the serial port debugging assistant

Step 6. Wait for the write to complete

Step 7. Put the SD card into the card reader, connect it to the host, and check the TEST.txt file content

Original link: <https://blog.csdn.net/qq_54193285/article/details/135992108?spm=1001.2014.3001.5501>