DIAGNOSTIC: Alter SIO Timing for T3 - FujiNetWIFI/fujinet-firmware GitHub Wiki
This is a command for Device $70 - The FujiNet Device itself (see SIO-Commands-for-Device-ID-$70).
Alters the Timing value (in microseconds) for Timing value 3.
From the Atari Hardware Manual:
The computer generates a delay (t3) between the receipt of the
last bit of the ACK byte and the transmission of the first bit of
the data frame by the computer.
computer t3 (min) = 1000 microsec.
computer t3 (max) = 1800 microsec.
peripheral t3 (min> = ??
peripheral t3 <max> = ??
| DCB | Value |
|---|---|
| DDEVIC | $70 |
| DUNIT | $01 |
| DCOMND | 0xB3 |
| DSTATS | 0x00 |
| DBUF | NULL |
| DTIMLO | 0x0F |
| DBYT | 0 |
| DAUX | 16-bit value containing # of microseconds in little-endian order |
See thwap tool, for examples of how to alter this value: GitHub Link