|
Title: trouble with microcode loader Post by: meho on February 21, 2008, 05:56:53 17:56 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 Title: Re: trouble with microcode loader Post by: adrian on May 02, 2008, 05:29:45 17:29 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 |