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Strange H4 on 18F6722

 
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Strange H4 on 18F6722
PostPosted: Fri Feb 03, 2006 8:22 pm     Reply with quote
Hi,

I have a code that run in a 18F6722 with 10Mhz H4 = 40000000Mhz the code have strange funcionality, but in 10Mhz HS the code work OK.

Somebody have some experiencie in use H4?

The compiler have any bug in H4?

I wait for your comments,
asmallri



Joined: 12 Aug 2004
Posts: 1634
Location: Perth, Australia

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PostPosted: Fri Feb 03, 2006 8:54 pm     Reply with quote
The PLL is enabled by the fues setting at power on reset. Did you power cycle the PIC after setting the fuse for the first time?
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Regards, Andrew

http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!!
Guest
PostPosted: Fri Feb 03, 2006 9:48 pm     Reply with quote
Dear asmallri,

I not understand the power cycle, can you explain best.

Thank you very much!!
asmallri



Joined: 12 Aug 2004
Posts: 1634
Location: Perth, Australia

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PostPosted: Fri Feb 03, 2006 11:02 pm     Reply with quote
Turn power off. Wait 5 seconds. Turn power on.
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Regards, Andrew

http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!!
tophe59



Joined: 13 Oct 2005
Posts: 32
Location: France

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PostPosted: Sat Feb 04, 2006 12:06 am     Reply with quote
The H4 break debug for me. I using internal RC*4 Crying or Very sad
cfernandez



Joined: 18 Oct 2003
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PostPosted: Sat Feb 04, 2006 6:47 am     Reply with quote
How to use Internal RC*4 ????????????
tophe59



Joined: 13 Oct 2005
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PostPosted: Sat Feb 04, 2006 1:38 pm     Reply with quote
cfernandez wrote:
How to use Internal RC*4 ????????????


i configure in RC mode with #fuses and enable pll in the code.
specialk



Joined: 12 Nov 2005
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PostPosted: Sat Feb 04, 2006 6:36 pm     Reply with quote
cfernandez wrote:
How to use Internal RC*4 ????????????
See section 2.4.2 of the 18F6722 datasheet.
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