How to Develop a Flash Media Driver
You can develop a flash media driver (FMD) to perform the input and output of data to a flash memory device. To do this, you must add support for the FMD functions to your driver. Once you have added support for the FMD functions, you can then debug your flash media driver to verify that it is functioning properly.
Hardware and Software Assumptions
- You have created, built, and downloaded a run-time image to your hardware platform. For more information, see How to Use the Command Line to Create, Customize, and Build a Platform.
- You have created a device driver. For more information, see How to Create a Device Driver.
To track your progress in the following table, select the check box next to each step.
| Step | Topic | |
|---|---|---|
| 1. Add support for the required FMD functions to your driver.
The following list shows the required FMD functions: |
Not applicable | |
| 2. Build your driver.
When building your driver, verify that your driver links to the Fal.lib link library. |
Building a Device Driver from the Command Line | |
| 3. Create a basic sample application that implements the FMD functions. This sample application will be used to debug your FMD. | Not applicable | |
4. Debug your driver in Platform Builder by setting a breakpoint in the entry point for each of the FMD functions for your driver.
Note You will need to reboot your run-time image and reload your driver to confirm that the driver executes to the breakpoint. |
Setting a Breakpoint at a Source Code Line | |
| 5. Download your OS image to your target device. | Downloading an OS Image to a Target Device | |
| 6. If you want to verify that your driver loads and functions correctly, run your sample application until you reach the breakpoints you previously set.
For more information on troubleshooting debugging a driver, see Troubleshooting: Debugging a Driver. |
Running an Application on the Target Device While the Debugger is Running |
See Also
Device Driver How-to Topics | Flash Media Driver | Block Drivers | Block Driver Architecture |How to Configure a Platform to Support a Flash Media Device
Last updated on Tuesday, May 18, 2004
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