You can use spc_request, spc_request_dev or spc_request_sys function when setting or using a smart expansion board.
spc_request($sid, 6, $wbuf)
spc_request($sid, 7, $rbuf)
spc_request_dev($sid, $cmd)
spc_request_sys($sid, $cmd)
Common commands can be used with spc_request_sys function and a list of the commands is as follows:
| Command | Option | Description |
|---|---|---|
| get | did | get a device ID |
| get | uid | get a unique ID |
Dedicated commands for each smart expansion board can be used with spc_request and spc_request_dev. The spc_request function is used for sending and receiving data, and the spc_request_dev function is used for setting and checking status.
The list of PES-2406 commands is as follows:
| cmd | arg1 | arg2 | arg3 |
|---|---|---|---|
| set | uart | (parameters) | - |
| modem | (signal) | - | |
| rts | (rts signal) | ||
| dtr | (dtr signal) | ||
| count | (counter) | (value) | |
| ifg | (bits) | - | |
| ifd | (del) | - | |
| (start_del) | (end_del) | ||
| - | - | ||
| txdelay | (bits) | - | |
| break | (time) | - | |
| get | uart | - | - |
| modem | (signal) | - | |
| count | (counter) | - | |
| rxlen | [del] | - | |
| txfree | - | - | |
| rxbuf | - | - | |
| txbuf | - | - | |
| ifg | - | - | |
| ifd | - | - | |
| txdelay | - | - |
※ (): mandatory, []: optional