Very slight bug report

[vkichline]

I built my kit last week; excellent kit and very high quality software. I really feel like I got my money's worth.
I have found one very slight issue. Perhaps this even repro's on real hardware, I don't know.
Using configuration setting $0958 (CP/M, MPU-A ROM + VIO ROM + Wifi Station) I transfer the console to TTY using: PIP CON:=TTY:.
If I then press Ctrl-P to direct output to the printer, I just get two of every character typed and nothing goes to the printer.
If I direct the console back to CRT:, printing works normally and characters are not doubled.
I don't require a fix for this, there is an easy work-around, but I thought it would be worth mentioning. If this is an issue that repro'd with the original hardware it would be really interesting to know why.

[donfroula]

Although the first serial port seems locked to the TTY console, it is possible to set the second serial port to device "UC1" at 9600 baud with the following lines in boot.conf:

UART1=9600,cs8
...

SIO2.portA.device=UART1
SIO2.portB.device=UART1
(Note if BOTH SIO2.portA.device and SIO2.portB.device are not set to UART1, the machine will crash when using device UC1 in CP/M.)

Be sure the jumpers are set correctly for the serial port connections.

I have an Epson TMU325D serial 40 column receipt printer connected to the second serial port. I can send a text file to the printer with:

PIP UC1:=FILE.TXT

Unfortunately, the BIOS in the emulation does not support setting the LST: printer device to UC1 in the IOBYTE mapping. The following does NOT work:

STAT LST:=UC1:

[udo-munk]

To show the current I/O assignments that CP/M uses:

A>stat dev:
CON: is TTY:
RDR: is PTR:
PUN: is PTP:
LST: is LPT:

To show the possible assignments:

A>stat val:

Temp R/O Disk: d:=R/O
Set Indicator: d:filename.typ $R/O $R/W $SYS $DIR
Disk Status : DSK: d:DSK:
User Status : USR:
Iobyte Assign:
CON: = TTY: CRT: BAT: UC1:
RDR: = TTY: PTR: UR1: UR2:
PUN: = TTY: PTP: UP1: UP2:
LST: = TTY: CRT: LPT: UL1:

So, to assign the printer to the second serial do:
stat lst:=ul1:

And of course use stat to assign the console to tty or crt.