Content originally posted in LPCWare by djonesboni on Wed Jan 14 06:02:59 MST 2015
Quote: capiman
Can you try lpc21isp? Or if you have a supported OS, perhaps FlashMagic?
Thanks very much :)
lpc21isp fits my needs. It will save me a lot of work.
But it also do not work yet, it gets stuck on synchronization.
I think the problem may be with the serial bus itself.
We use a rs485 bus and sp485 transceivers, which need set DE and RE to transmit and clear them to receive.
The ISP bootloader is not aware of that, so it cannot transmit or receive (at least not both).
Would a rs232 bus (with max232 transceivers) be fine for programming?
I need to find out what are these bytes that I'm receiving (they only appear when the board has power).
Any clue?