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Lpc2000

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Message

Re: Half Duplex Bootloader Firmware

2005-10-07 by mhoneywill

Thanks Mark,

> Hi Martin
> 
> We have a PC program which checks the boot loader version in an 
> LPC210x and loads the newest version if it is found not be be the 
> newest know one (there are some problems with older versions but 
> many chips still have them) and then loads a user software.
> 
> I assume it would not be a big job to modify this to ensure that it 
> will also work on half duplex links - RTS line could also be used 
> for control.
> 
> 
> Tell me what you think.
> 
> Cheers
> 
> Mark Butcher

But its not the PC end that I need to modify its the ARM end. My ARM
device will have one half duplex RS485 port that I want to use to with
the built in ARM ISP firmware. This would mean that the built in ARM
ISP firmware would need to be able to control the Transmit state of
its own RS485 chip.

Thanks for the reply

Martin

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