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PLS62W problems changing baud | Thales IoT Developer Community

September 14, 2020 - 3:23am, 1221 views

We are seeing a minor issue when changing baud rates on our PLS62W modems. The example below shows the modem initially running at 3000000 baud. We detect the modem by sending AT and receiving OK, and then attempt to set the baud to 921600. The modem returns OK, so we then change our baud rate to 921600 and send AT at the new rate. However, we receive no ack from the modem after three tries. Switching back to 3000000 baud, we see the modem is still responding at this original rate. Retrying the baud rate switch command finally forces the modem to the new baud rate

[BAUD = 3000000]
AT
OK
AT+IPR=921600
OK

[BAUD = 921600]
AT
AT
AT

[BAUD = 3000000]
AT
OK
AT+IPR=921600
[no response]

[BAUD = 921600]
ATE1
OK

 

Modem info: 

Cinterion
PLS62-W
REVISION 02.010
A-REVISION 01.000.05