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  Topic: Help for PIC18F64J90 segment LCD flicker problem
LourenceGuo

Replies: 1
Views: 2629

PostForum: 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

PostForum: 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

PostForum: 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

PostForum: 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

PostForum: 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

PostForum: 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

PostForum: 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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