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FreeRTOS+FAT is still in the lab
FreeRTOS+FAT is already in use in commercial products and we encourage you to try it yourself. Be aware however that FreeRTOS+FAT was acquired by Real Time Engineers Ltd., and is still being documented and updated to ensure it meets our strict quality standards. Please use the forum for support, or contact us directly if you have a specific business interest. ff_fwrite()
ff_stdio.h
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| pvBuffer |
A pointer to the source of the data to be written to the
file.
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| xSize |
The size in bytes of each item being written to the file.
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| xItems |
The number of items to write to the file. The size of
each item is set by the xSize parameter.
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| pxStream |
A pointer to the file to which the data is being written.
This is the same pointer that was returned from the call
to ff_fopen() used to originally open the file.
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The number of items actually written to the file is returned. The number of items written to the file will only equal the number of bytes written to the file when the item size is 1. The size of each item is set by the xSize parameter.
If the number of items written to the file is less than the xItems value then the task's errno is set to indicate the reason. A task can obtain its errno value using the ff_errno() API function.
Example usage:
The example provided on the ff_fopen() documentation page shows how ff_fwrite() is used.