SCHEMATIC 2. I extracted this drawing from the PmodRF2 schematic. Every Digilent device is fully documented via words assembled in user manuals and graphics drawn together as schematic diagrams.
low. The SPI1CON bits are set to force data transfer on the falling edge of the SPI clock signal. Once the SPI portal is configured and activated, the speed of the SPI portal must be regulated in accordance with the PIC32MX795F512L’s clock frequency. Following the establishment of a suitable SPI data exchange speed, the characteristics of the external interrupt (INT3) are configured.
The final program actions aimed at arming INT3 are performed in the MRF24J40.c file: Once again, no Air Force training is required and believe me, these 32MX7 LED and button I/O positions are well documented. Note that we also twiddled with the 32MX7’s TMRL definition.
Rather than do a blow-by-blow description of the MiWi Simple Demo HardwareProfile.c modifications, I’ve included a copy of the modified HardwareProfile.c code snippet in the download package that you can reference as I describe what the code is designed to do. The 32MX7 code snippet is inserted into the original Simple Demo HardwareProfile.c file just prior to the #elif defined(PIC18_EXPLORER) statement. In fact, all of our 32MX7 modifications fall prior to the original PIC18 Explorer code whenever possible.
PHOTO 3. This is an over and under shot of the PmodRF2 interface cables.