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How to work with PIC_downloader Bootloader ?

 
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Amnon



Joined: 17 Sep 2005
Posts: 6

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How to work with PIC_downloader Bootloader ?
PostPosted: Tue Jan 10, 2006 11:33 am     Reply with quote
Hi
I am working with PIC16F877 , and this is my first time with boot loaders and I am trying to work with the PIC_downloader boot loader.

(a pic of the program)



(and the link for it : http://www.microchipc.com/PIC16bootload/)

I have burn the boot loader to the MCU ; and when I am using the test code that come with the PIC_downloader it worked grate.

But when I am trying to download my own code to the MCU I am getting "Writing error !" message.

I have added the next lines to my code :

Code:
#ORG 0x1F00,0x1FFF //for the 8k 16F876/7
 void loader() { }


and it compile ok, but still I cant down load a code to the MCU.

Dose any one can explain me what should I do (a small sample code will be great)

Thanks Amnon
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asmallri



Joined: 12 Aug 2004
Posts: 1635
Location: Perth, Australia

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PostPosted: Tue Jan 10, 2006 9:10 pm     Reply with quote
It may be that the bootloater has LVP enabled. In this case you have to ensure that RB4 is no floating or not putting the PIC in LVP mode. The alternative is to disable LVP in the bootloader.
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Regards, Andrew

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