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did you clean the board carefully with acetone to wipe off any solder stripper ??? especially under the caps ...Originally Posted by Kamikaze47
next step will be verify your caps value ( SMD not marked ...) and Xtal data ...
may be could we have an eye on your program ??? ...
Alain
BTW ... could you try to run the PIC @ 10 mhz ( HS_OSC ) ... just to see if any life aboard.
Last edited by Acetronics2; - 4th September 2010 at 12:12.
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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I did clean the board thoroughly with alcohol to get rid of flux, etc.
Ive tried every cap value I have. At the moment I've actually replaced the SMD caps with 22pF thru-hole caps soldered onto the SMD pads as a test, but that didn't help either.
Unfortunately I dont have data on my crystal. The place I bought it didn't supply data or a specific manufacturer/model number.
When this started happening I reduced my program to a bare minimum to test if it is running. After trying 10mhz with HS_OSC (which didnt make a difference), the code im using is:
Code:DEFINE OSC 10 ADCON1=%01111111 LCD_DB4 VAR PORTA.4 LCD_DB5 VAR PORTA.2 LCD_DB6 VAR PORTA.3 LCD_DB7 VAR PORTB.0 LCD_RS VAR PORTA.0 LCD_E VAR PORTA.1 LCD_Lines CON 2 LCD_DATAUS CON 50 LCD_COMMANDUS CON 2000 INCLUDE "LCD_AnyPin.pbp" PAUSE 200 LCDOUT $FE,1,$FE,2,"Hello World!" END
"I think fish is nice, but then I think that rain is wet, so who am I to judge?" - Douglas Adams
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Try a simple BLINKY on a non ADC pin for a test.
Tooo many things could be wrong with the other stuff.
Dave
Always wear safety glasses while programming.
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Do you remember PORTA.4 is an open collector pin ... ???
... and you could use pause 500+ instead of 200. some displays are a bit lazy ...
Last edited by Acetronics2; - 4th September 2010 at 12:44.
************************************************** ***********************
Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
************************************************** ***********************
IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
*****************************************
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I added a pullup resistor to PORTA.4
It's definitely the osc because if I leave it running for 15 mins or so it does eventually display "Hello World!" extremely slowly.
"I think fish is nice, but then I think that rain is wet, so who am I to judge?" - Douglas Adams
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I think so ... now.
Xtals also can be a bit lazy ... depends on the " cut "
don't you have a 12 or 16 Mhz Xtal ... ( I recently saw a 18F overclocked @ 80 Mhz !!! ... ) 48 Mhz is easy, 64 might work.
Alain
************************************************** ***********************
Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
************************************************** ***********************
IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
*****************************************
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I just replaced it with a 16mhz which is working but that could just be because of the heating up. The test will be leaving it for half an hour and see if it still works. I'll post again then
"I think fish is nice, but then I think that rain is wet, so who am I to judge?" - Douglas Adams
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it seems to be running happily at 64hmz
i dont understand why since i tried 2 different 10mhz crystals
"I think fish is nice, but then I think that rain is wet, so who am I to judge?" - Douglas Adams
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