> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/error-codes/serial-communication.md).

# Serial Communication

| Code | Error                             | Description                              |
| ---- | --------------------------------- | ---------------------------------------- |
| -601 | K\_ERROR\_SERIAL\_INVALID\_CONFIG | Invalid configuration for COM port       |
| -602 | K\_ERROR\_SERIAL\_OPEN            | Error opening COM port                   |
| -603 | K\_ERROR\_SERIAL\_CONFIG          | Error configuring COM port               |
| -604 | K\_ERROR\_SERIAL\_CLOSE           | Error closing COM port                   |
| -605 | K\_ERROR\_SERIAL\_PORT\_NOT\_OPEN | Error accessing COM port. Port not open. |
| -606 | K\_ERROR\_SERIAL\_WRITE           | Error writing to COM port                |
| -607 | K\_ERROR\_SERIAL\_READ            | Error reading from COM port              |