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testwaveform_march29 [2018/07/11 08:26] (current)
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 +====== LPM4 Test Waveform ====== 
 +\\  Here are the pictures of my WISP:\\ \\  Front side:\\ {{::​front.jpg?​nolink&​800}}\\ \\  Back side:\\ {{::​back.jpg?​nolink&​800}}\\ \\  As you can see,I place a 1.8v power supply across the "Rx Enable"​ pin(red) and Gnd(balck).\\ ​ Then I download and debug LPM4 code into WISP and probe the input and output of the comparator:​\\ {{::​de_inout.jpg?​nolink&​800}}\\ ​ The blue line stands for "​bitline",​and the yellow stands for "​compA"​\\ ​ I think the comparator is not working well.\\ \\  The I probe the "​Receive"​ pin with AC coupling mode and DC coupling mode,​respectively:​\\ \\  "​Receive"​ pin in AC coupling mode:\\ {{::​receive_ac.jpg?​nolink&​800}}\\ ​ It seems there are no waveforms.\\ \\  Then I choose the DC coupling mode.\\ ​ "​Receive"​ pin in DC coupling mode:\\ {{::​receive_dc.jpg?​nolink&​800}}\\ \\  It seems the system doesn'​t work properly.
testwaveform_march29.txt · Last modified: 2018/07/11 08:26 (external edit)