Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
07/11/10 08:24
Read: times


 		 #177233 - scope time
Responding to: ???'s previous message
Use an oscilloscope to see Tx signal coming out of GPS before you connect it to 8051 and after you connect it. See if 8051 loads the GPS signal.
This will reveal your problem I think.
Mahmood

List of 41 messages in thread
TopicAuthorDate
Problems with GPS Receiver and the 8051            01/01/70 00:00      
   Take a step back.            01/01/70 00:00      
      Always very baudrate by measuring it            01/01/70 00:00      
      Roger that..            01/01/70 00:00      
         Noise ?            01/01/70 00:00      
         RE: Random data            01/01/70 00:00      
            Working on the hyperterminal...            01/01/70 00:00      
               Tx Rx pins            01/01/70 00:00      
                  The connections seem to be fine...            01/01/70 00:00      
                     GPS emulator            01/01/70 00:00      
                        Keil Simulator            01/01/70 00:00      
                           Great idea...            01/01/70 00:00      
                              Simulating GPS seems to work...            01/01/70 00:00      
                                 scope time            01/01/70 00:00      
                     LCD display delay problem?            01/01/70 00:00      
   Sio_poll_0.6.zip            01/01/70 00:00      
      comp.xx not nicest            01/01/70 00:00      
         Thanks Per.            01/01/70 00:00      
            Ask for suggestions how to improve the code            01/01/70 00:00      
               Good advice...            01/01/70 00:00      
      Hyperterminal works            01/01/70 00:00      
         A doubt in the datasheet...            01/01/70 00:00      
            it means that they do not know            01/01/70 00:00      
            Correct            01/01/70 00:00      
            why            01/01/70 00:00      
   Let's Do a Sanity Check            01/01/70 00:00      
      EM406            01/01/70 00:00      
      It is very weird, but...            01/01/70 00:00      
         Then is is time for....            01/01/70 00:00      
            Oscilloscpe.            01/01/70 00:00      
               Verify voltages with scope            01/01/70 00:00      
         re inversion (not) needed)            01/01/70 00:00      
      Use the simulator!            01/01/70 00:00      
         Don't really know...            01/01/70 00:00      
            Using the Keil Debugger/Simulator            01/01/70 00:00      
               Working! Now...            01/01/70 00:00      
                  Expensive solution            01/01/70 00:00      
                     True...            01/01/70 00:00      
                        SD_Card_and_DCFS16.zip            01/01/70 00:00      
                           broken link            01/01/70 00:00      
                     not all "level-converter chips" are special            01/01/70 00:00      

Back to Subject List