15/5/2000

 You can use the capture text file for this one, and hyper term will write
the data to your nominated file location. Don't use the X modem style
protocols as you will have to write a handler


Dennis





> -----Original Message-----
> From: uC Novice [SMTP:uc_newbie@YAHOO.COM]
> Sent: Monday, 15 May 2000 15:44
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      ZModem [OT sort of]
>
> Anyone familar with ZModem?
>
> Here is my situation. I am sending data from a uC via
> a serial port to a PC. On the PC, I have Hyperterminal
> running in capture mode. I have the baud rate set at
> 57.6kbps 8-N-1 and hardware flow control. I am
> properly taking care of the hardware flow control
> lines CTS,RTS,DTR and DSR by looping them back to each
> other. I can transmit my data which is HEX and comes
> out as ASCII characters on the Hyperterminal window
> just fine; however what I really want to do is to use
> the "Receive File" mode instead of the "Capture Mode"
> because I want my data to be automatically saved as a
> file. As opposed to just sitting in the Hyperterminal
> window.
>
> When I start the "Receive File" mode in Hyperterminal
> it asks me for the protocol...XModem, Kermit, ZModem
> etc. I have heard that ZModem is the best but I would
> be willing to use any one of them if I could just get
> the PC to start receiving my data using one of these
> protocols ("Receive File mode"). What happens is that
> it times-out like it is waiting for a special byte or
> a header before the data. It never starts receiving.
>
> Does anyone know what I need to send the PC in order
> for it to start receiving my data using ZModem?
> Perhaps it is a special header or couple of bytes
> preceding the data that will start it. Again, the
> serial port is configured for 57.6kbps 8-N-1 and
> hardware flow control and I am using the same hardware
> flow-control loopback trick that I used successfully
> with the "Capture mode".
>
> Any Hints, Suggestion, or Clues.
>
> The next thing I am going to try is to send a file
> with just one ASCII character from one PC to another
> using a null modem and this "Receive mode" using
> ZModem and probe the data that gets sent.
>
> Thanks,
>
> uC_Novice
>
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