Tuesday, October 26, 2010

SGP4 on PIC32 Observations

Because I'd like to move to the SGP4 tracking algorithm for QRPtracker (and failed to port it well to the 8-bit ATMega644) and because there's no substitute for real programming power, I'm playing around with the PIC32 processor, as conveniently provided in the CUI32 experimenter's board. My goal is to milk this for all its SRAM and flash, but keep the power down to the single-digit mA level so that I can use a pair of AA batteries to power it.

Here's some power observations to get things going: