On 6/13/17 11:22 AM, Alan Frisbie via cctalk wrote:

> 2. DTC 520-1 disk controller and its DTC-11 Q-Bus host adapter.

> 
> Our current project is to replace the ST-506 disks with
> the David Gesswein MFM disk emulators.   To do this, we
> need to determine the CRC algorithm used by DTC, which we
> cannot find any documentation for.


did you ask david to try decoding the data for you? he's been
very good at doing so.

DTC documentation should be on bitsavers


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