XMODEM-CRC Receive does not work

• Informador: pieterc
• Propietario: (del#24082)
• Tipo: Bugs
• Estado: Cerrado
• Componente: Tera Term
• Hito: Tera Term 4.84 (cerrado)
• Prioridad: 5 - Medium
• Gravedad: 5 - Medium
• Resolución: Ninguno
• Fichero: 1

Details Responder

XMODEM Checksum Receive works :)

XMODEM-CRC Receive does not work :(

Tera Term sends 'C' to start receive. Board sends valid XMODEM-CRC data packet, but Tera Term rejects / ignores it and sends another 'C'. See attached XMODEM.LOG.

I wanted to help fix the bug by building and debugging Tera Term from SVN using VisualStudio 2010, but building fails, sorry! I suspect that settings is not handled correctly somewhere in: xmodem.c line 250: BOOL XReadPacket(PFileVar fv, PXVar xv, PComVar cv)

Thanks in advance, Pieter

Ticket History (3/5 Histories)

2014-06-05 16:56 Updated by: pieterc

• New Ticket "XMODEM-CRC Receive does not work" created

2014-06-05 16:57 Updated by: pieterc

• File XMODEM.LOG (File ID: 5101) is attached

2014-06-05 16:59 Updated by: pieterc

• Details Updated

2014-06-08 00:31 Updated by: (del#24082)

• Propietario Update from (Ninguno) to yutakapon

Comentario Responder

> FF FF FF A9 00                                      .....

It seems that your sender is mistaken to calculate the checksum value.
I think that the correct value is not "A9 00" but "ED A9". So, this is
not the Tera Term bug.

Thanks.

2014-06-08 20:26 Updated by: pieterc

• Estado Update from Open to Cerrado
• Ticket Close date is changed to 2014-06-08 20:26

Comentario Responder

I am so sorry for wasting your valuable time. You are right! My sender did not send the low byte of the CRC. I have fixed it and Tera Term works perfectly!

Thanks, Pieter