SDIO Slave
Overview
This application is an example of SDIO slave communication using the WM IoT SDK. It demonstrates how to use the wm_drv_sdio_slave driver APIs from the WM IoT SDK for data transfer between host and slave. The example includes both synchronous and asynchronous data transfers, as well as command and data reception handling.
Requirements
Hardware environment that supports SDIO slave functionality and an SDIO host device are required.
W80x development board
Host device with SDIO master interface (e.g. another MCU or development board)
Connection cables
CIS (Card Information Structure) defines the information structure of the card. CIS contains both common CIS (Function 0) and Function 1 port’s respective CIS. The fn_regs defined in the cis.c file is just a CIS configuration reference, users can modify it according to their own SDIO card type.
Building and Fashing
Example Location： examples\peripheral\sdio_slave
For compilation, flashing, and other operations, please refer to: Quick Start Guide
Running Result
The following log is displayed after successful operation
[I] (4) main: ver: 2.1.3dev build at Nov 7 2024 10:57:19
[I] (4) main: boot reason 0
[I] (4) main: heap size 272952(266.55KB)
[I] (5) main: flash size 0x200000(2MB)
[I] (6) example: SDIO slave demo start
[I] (6) example: Initializing sdio slave device...
[I] (7) example: Successfully initialized sdio slave device
[I] (7) example: Waiting for rx events...