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 I've been running a little behind schedule this summer. School and work obligations are taking their tolls. I have began developing the IDE drivers for the PIC microcontroller, but found that the newer drives will not function in 8-bit mode (that's what you get for following older specs), so I am going to need to get a bigger PIC and increase the data bus width to 16 bits. The rest of the code looks like it is working fine, but I need to wire up a new test circuit to finish debugging and round out the feature set. I hope to finish these drivers by the end of the year, school and work permitting.
The new IDE drivers function using data streams to ensure the smallest possible memory footprint in the PIC processor. Read and write operations are initiated starting at indicated drive sector addresses and the data is then written using separate write and read functions. The data is passed through a user defined buffer and can be passed incrementally.
The entire driver is implemented in a MPLAB object file for portability and is currently based around the PIC18 series of microcontrollers. Full specifications will be released when the drivers are completed.
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