SIM548C EVB User Guide
SIM548C-EVB_ UGD _V1.01 04.05.2008
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3.6.2 GPS part
Figure 12: GPS part LED
Name Description STATUS
1PPS_LED 1PPS signal indicator Not used currently
RX/TX_LED Run or download indicator
Run normally: Blinking at 1Hz
Download: Blinking rapidly
