Tiny Bootloader 18F2420

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  1. - 30th December 2009, 21:50 #8
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    ScaleRobotics
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    You can also modify the TinyB18F.asm code for other PIC types. The cool part of using PIC18 device is that you can run the bootloader WITHOUT a MAX232! Just invert your USART with RXDTP and TXCKP. I have been meaning to try it since I read this thread: http://www.picbasic.co.uk/forum/showthread.php?t=10361

    I finally tried it using a PIC18f2520 with a 22k resistor on the RX line, and with the addition of

    Code:
    	BSF BAUDCON,RXDTP
	BSF BAUDCON,TXCKP
    to the sample .asm file they call TinyB18F.asm , which is included in the Tiny Bootloader download.

    Nice to get rid of a $4.00 chip, and do it in hardware, well ... sort of software/hardware!

    And it works!!
    Last edited by ScaleRobotics; - 30th December 2009 at 21:57.
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