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Author Topic: trouble with microcode loader  (Read 1214 times)
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meho
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« on: February 21, 2008, 06:56:53 18:56 »

hi guys,
desperatelly seeking the way how to convince my system start working with microcode loader :

-Bigpic 4 board from mikroelektronika (pic18f8520,ICD,USB on board programmer...)
 works good with their own soft i.e. mikroBasic 6 and PicFlash programmer but..

i heavily tried microcode studio plus 3 with picbasicpro 2.44 and RS 232 connection to COM1- correct settings for MPASM, PBP ,microcode loader but with no success -all  i get is

-"reset required... pls reset the target microcontroller to access the bootloader process"
Could it be  some trouble with serial port (COM1) -winxp device manager says it is OK ?

(resulting compiled hex file can be correctly written to pic with  USB - Picflash programmer !?

Any  idea what am i doing wrong?

thanx for your help
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adrian
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« Reply #1 on: May 02, 2008, 06:29:45 18:29 »

sorry for the late reply.
i don think u can use Bigpic 4 board with MCSP. Coz it needs a specific rs232 circuit. not the one on the Bigpic 4 board.

But if u already construct a different circuit,i guess there are 3 possibilities why it din work.
1) U have constructed your loader-rs232 circuit wrongly.
2) U may not have your bootloader burned properly and use proper xtal value.
3) Your PIC may not be running at that time. Check connections n continuity.

Good Luck
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