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Old 9th Feb 2023, 10:04 pm   #168
coolsnaz2
Tetrode
 
Join Date: Aug 2020
Location: Wallington, Greater London, UK.
Posts: 87
Default Re: Yet another MK14 tape interface (ESP32).

Quote:
SiriusHardware: (Normally if you are 'reading' synchronous serial data you do it in mid-bit rather than near the edge of the bit, so you do the 'read' on whichever edge of the clock - falling or rising - coincides with the centre of the bit).
The sync pulse has been delayed to coincide with the centre of each bit, see attached oscilloscope photo. We now have a 360 microsecond delay between each byte to allow the MK14 to process the byte, even with the VDU enabled. The current speed being achieved is approximately 2400 bps.

Quote:
SiriusHardware: the uploader should really look for the full FFFE start address
The web Server has been updated to check for the full FFFE Start address and also sends 0001h if no execution address is found in the hex file.

The attached updated SCIOS binary file has been created by Realtime, and verified by myself.
Attached Thumbnails
Click image for larger version

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Attached Files
File Type: zip scios_version_3.zip (13.0 KB, 67 views)
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