I have a BlueSMiRF Gold that I am using as a serial link to a PIC. What I would like to do is use the RTS pin on the BlueSMiRF as the MCLR reset signal for the PIC.
In the BlueSMiRF’s default mode 0, the CTS and RTS lines are connected. I assume it would have to be placed in a different mode, but dont know which one. I have played around with the different modes a little bit, but am not sure which one would work for what I am trying to do. Also, how would you control the RTS line from a PC program?
Any insight would be very helpful. Thanks in advance!
I don’t think this is possible, but I’d love to be proven wrong. I tried a number of different ideas, but couldn’t remotely control the RTS/CTS lines from the PC. They seem to only provide flow control from the radio to the PIC. I was able to get remote reset working with the XBee modules by mirroring RTS on one of the I/O pins and having the module transmit the status to the other end.
I did got remote reset working with the BlueSMiRF using a software approach. The main program running on the PIC looked for a specific data pattern coming in via the BlueSMiRF. When the PIC detected the pattern, it did a jump to location 0, thus transferring control to the bootloader.