Author |
Message |
Topic: Help for PIC18F64J90 segment LCD flicker problem |
LourenceGuo
Replies: 1
Views: 2629
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Forum: General CCS C Discussion Posted: Tue Mar 11, 2008 7:54 pm Subject: Help for PIC18F64J90 segment LCD flicker problem |
The wave form on RD1/SEG1, RD2/SEG2, RD3/SEG3, RD4/SEG4, RB4/SEG11, RC6/SEG27 is not stable, seems two driving signal mix togerter.
Another question, I hope to place a image here to show the proble ... |
Topic: Help for PIC18F64J90 segment LCD flicker problem |
LourenceGuo
Replies: 1
Views: 2629
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Forum: General CCS C Discussion Posted: Sat Mar 08, 2008 1:29 am Subject: Help for PIC18F64J90 segment LCD flicker problem |
Dear all:
We built up an PCBA with PIC18F64J90 MCU, drive 88 pixels segment LCD. Use MUX14, 1/3 bias, resistor ladder(M3 mode). The resistor value is 300k Ohm for each, we try to change it to 100k ... |
Topic: PIC18F64J90 low power design problem |
LourenceGuo
Replies: 3
Views: 4251
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Forum: General CCS C Discussion Posted: Wed Feb 27, 2008 8:43 pm Subject: PIC18F64J90 low power design problem |
According to the attached forum, we do some setting for the corresponding pins, the current decreased to about 74uA.
But the current did not have more reduce when we use: sleep();
We try to use ... |
Topic: PIC18F64J90 low power design problem |
LourenceGuo
Replies: 3
Views: 4251
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Forum: General CCS C Discussion Posted: Mon Feb 25, 2008 12:10 am Subject: PIC18F64J90 low power design problem |
Look forward for the reply. Thanks! |
Topic: PIC18F64J90 low power design problem |
LourenceGuo
Replies: 3
Views: 4251
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Forum: General CCS C Discussion Posted: Fri Feb 22, 2008 10:01 pm Subject: PIC18F64J90 low power design problem |
Dear All.
We try to use PIC18F64J90 to design a battery powered low power equipment.
We used most of the I/O as LCD drive segments. The LCD is a 88 pixels segment LCD. W/ AN0,AN1,AN2 as ADC fu ... |
Topic: Timer based Real Time Clock (RTC) |
LourenceGuo
Replies: 57
Views: 571753
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Forum: Code Library Posted: Fri Feb 22, 2008 9:00 pm Subject: Timer based Real Time Clock (RTC) |
Thank you for the reply!
The crystal I used is 8MHz, HC-49S, but the load capacitor and ppm is
not sure. The capacitor I used is pf, there is no resistor in parallel or serial connection with t ... |
Topic: Timer based Real Time Clock (RTC) |
LourenceGuo
Replies: 57
Views: 571753
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Forum: Code Library Posted: Thu Feb 14, 2008 6:58 pm Subject: Timer based Real Time Clock (RTC) |
I tried this code with 8MHz crystal with PIC16LF873A, it works.
But the when I let the clock work over 12 hours, it is 6seconds faster than my computer, I am not sure if my computer clock is so preci ... |
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