Re: [N8VEM: 10665] N8 - Xmodem anyone?

[Max Scane <mjs...@gmail.com>]

Hi Sergey,

That version of xmodem.com does work on the N8.  Or at least the Alpha

board that I have.  I haven't built the Beta yet.

I specifically modified the source to suit the Z180's UARTS.  

I am pretty sure that others it working as well.  I have downloaded

many kilobytes of data using it.

You might want to check you serial port cable to ensure that

you have all the modem signals connected.  I think the Z8S is

more picky on modem signals than the z80180.

Regards,

Max 

On Fri, Jul 22, 2011 at 1:41 PM, Sergey <skis...@gmail.com> wrote:

Hi,

XMODEM.COM which is included in hc-cpm22-06-07-11-MS(1).zip doesn't
work on N8. Not sure, but maybe it was configured for the original
N8VEM SBC which uses different UART located on on different address.

Does anyone have XMODEM that will work on N8? Or perhaps can guide me
how to configure XMODEM and where to its source code?

I was trying to use following configuration on xmodem48.z80 downloaded
from Douglas side, but it didn't work... probably I don' know what I
am doing :-)

--- cut here ---
;If you are using an external modem (not S-100 plug-in)
;change these equates for your modem port requirements
;
       .IF EXTMOD
MODCTLP:.EQU 044H               ; PUT YOUR MODEM STATUS PORT HERE
MODSNDB:.EQU 02H                ; YOUR BIT TO TEST FOR SEND
MODSNDR:.EQU 02H                ; YOUR VALUE WHEN READY
MODRCVB:.EQU 80H                ; YOUR BIT TO TEST FOR RECEIVE
MODRCVR:.EQU 80H                ; YOUR VALUE WHEN READY
MODDCDB:.EQU 04H                ; CARRIER DETECT BIT                          *** DSR change
status bit
MODDCDA:.EQU 00H                ; VALUE WHEN ACTIVE                    *** 0 = no
change since
MODDATP:.EQU 048H               ; YOUR MODEM DATA IN PORT
MODDATO:.EQU 046H               ; YOUR MODEM DATA OUT PORT
MODCTL2:.EQU 044H               ; SECOND CONTROL/STATUS PORT.

       .ENDIF                  ; END OF EXTERNAL MODEM .EQUATES
--- cut here ---

Thanks,
Sergey

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