Update !
With only the CPU board <no prop i/o> I am able to boot/load the monitor and CP/M
using
v1.2 firmware and related files. I'm not familiar with the monitor syntax. Is this
a common monitor program ? I'd like to know how to use it.. Otherwise I can load
CP/M and get the a> prompt. A "dir" command gives me one file MON-32K.COM.
Also, as mention in another thread, I was having an issue using v2.3 and a memory
error. I did the test Josh had recommended to Jeff to test the lower RAM chip with the
command R 00 7F. It took a bit but ran and passed. I switched the two memory chips
and they all passed.
At this point I want to 'assume' my hardware is good, but my setup doesn't like v2.3 yet.
On Saturday, February 21, 2015 at 10:52:17 PM UTC-6, litterbox99 wrote:
Josh,
I'm now using a comm port on the CPU board (w/HyperTerm & WinXP) & (The Console I/O) on the other.
They echo/mirror each other for key press & screen, but it still won't respond to anything but < R >
for the Ram test that fails @042A
Todd
----- Original Message -----
Todd, The firmware outputs to both the 8250 UART port 0 on board (I/O 20h) and to the Console I/O board at I/O 00h.
It will also accept any input from either console. If you connect them both, then you'll see a duplicate.
I was thinking of writing a seek and employee routine that would send messages to a range of I/O address and scan them all for a response ie, "Press <CR> to continue", but the variations were endless and such programming would take too much time. So I just hard coded support for the CONSOLE IO to the routines that already work with the on board uart.
Cheers, Josh