Using HDLC/LAP-D Protocol
Status and Error Messages
89 ST25REVCD | Revision code upload |
| This message is sent in response to a CW_REVCODE |
| control write. The data buffer contains a single byte |
| which is the current protocol version. Currently, this is |
| 11. |
Write Completion Status Codes
The following statuses are returned in response to write requests. Although these are a part of the standard status set, they are not used by all protocols, and have a particular significance within this protocol.
0 | IO_OK | No error detected |
The request was successfully transmitted and acknowledged by the remote side.
1 | IO_DSBL | Terminal disabled |
The terminal must be enabled before it will accept write or control write requests.
22 IO_LNK_DSC Link disconnected
An unrecoverable error occurred while this request was waiting to be sent or to be acknowledged by the remote side. The transmit request has been flushed.
23 IO_LNK_RST† Link reset
A recoverable error occurred while this request was waiting to be acknowledged by the remote side. The transmit request has been flushed.
Control Write Completion Status Codes
The following statuses are returned in response to control write requests. Although these are a part of the standard status set, they are not used by all protocols, and have a particular significance within this protocol.
0 | IO_OK | No error detected |
The request was successfully transmitted and acknowledged by the remote side.
36 | Chapter 3 |