Has anyone has any success flashing a nRF24LU+ dongle NOT using the official dev kit ? I'm attempting to flash using another microcontroller programmed as an SPI Master so should be a piece of cake :) I've had an educated guess at the connections exposed by the small JST connector on the dongle (based on the nordicsemi hardware diagrams). Also it looks like the RESET pin is initially pulled low (through a capacitor) when connected to power and then pulled high.
So I think the sequence should be : Programmer sets PROG LOW and CSN HIGH. power on to usb dongle via USB 'power only' connector (usb data lines NOT connected)
(wait a few ms) PROG HIGH CSN LOW issue command/read/write/etc CSN HIGH
etc
But, I'm just not getting sensible results - just random reads.
Am I doomed ? Do I just need to fork out for the official dev kits ?
Rob
