text stringlengths 0 99.6k |
|---|
SENDER RECEIVER |
<--- <C> |
times out after 3 seconds, |
<--- <C> |
times out after 3 seconds, |
<--- <C> |
times out after 3 seconds, |
<--- <C> |
times out after 3 seconds, |
<--- <nak> |
<soh> 01 FE -data- <xx> ---> |
<--- <ack> |
<soh> 02 FD -data- <xx> ---> (data gets line hit) |
<--- <nak> |
<soh> 02 FD -data- <xx> ---> |
<--- <ack> |
<soh> 03 FC -data- <xx> ---> |
(ack gets garbaged) <--- <ack> |
times out after 10 seconds, |
<--- <nak> |
<soh> 03 FC -data- <xx> ---> |
<--- <ack> |
<eot> ---> |
<--- <ack> |
Here is a data flow example for the case where the receiver requests |
transmission in the CRC mode and the sender supports the CRC option. This |
example also includes various transmission errors. <xxxx> represents the |
2 CRC bytes. |
Chapter 8 Xmodem Protocol Overview |
X/YMODEM Protocol Reference 10-27-87 26 |
Figure 13. Receiver and Sender Both have CRC Option |
SENDER RECEIVER |
<--- <C> |
<soh> 01 FE -data- <xxxx> ---> |
<--- <ack> |
<soh> 02 FD -data- <xxxx> ---> (data gets line hit) |
<--- <nak> |
<soh> 02 FD -data- <xxxx> ---> |
<--- <ack> |
<soh> 03 FC -data- <xxxx> ---> |
(ack gets garbaged) <--- <ack> |
times out after 10 seconds, |
<--- <nak> |
<soh> 03 FC -data- <xxxx> ---> |
<--- <ack> |
<eot> ---> |
<--- <ack> |
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