My WMP100 stopped respond to AT Commands. So I’ll want to erase it and download other program. But I can’t use DWLWin. I have in device bluetooth which uses the same lines as UART1. When I connect PC with WMP trough bluetooth and try to erase application in DWLWin it doesn’t work.
You can use AT Commands to permanently erase the application and object data on the WMP. Have a look at the “AT+WOPEN” command.
AT+WOPEN=0 - Stop application
AT+WOPEN=1 - Start application
AT+WOPEN=3 - Erase objects/flash
AT+WOPEN=4 - Erase Application
Note that you must stop the application before you can erase the objects or application. Before you erase anything, make sure the WMP is still responing to AT commands correctly. If you can’t send or receive AT commands, you won’t be able to download a new application using “AT+WDWL”.
Note also that you need to put the unit into boot mode when using DWLWin. Tie the BOOT pin to 1V8, and reset the modem with DWLWin started. You require at least 4 UART lines for download (RX, TX, RTS & CTS), so make sure you have access to all of them.