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>