------------------------------------------------------------------------------- Microchip MRF24J40MA ------------------------------------------------------------------------------- This is a set of captures of the communication of an ECG device using a Microchip MRF24J40MA RF chip. Logic analyzer setup -------------------- The logic analyzer used was a Saleae Logic (at 12MHz). Probe MRF24J40MA ----------------- 0 CS# 1 SDO (MISO) 2 RESET# 3 WAKE 4 INT 5 SDI (MOSI) 6 SCK 7 CONTROL2 (custom debug signal) mrf24j40ma_no_txfails.sr ------------------------ This is a capture of a device where there aren't many TX fails (but some occasional retries). mrf24j40ma_many_txfails.sr -------------------------- This is a capture of another device, where there are many TX fails and retries.