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Topics - micro9000

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ARM Cortex / LPC1764 Assistance and Connections
« on: July 18, 2013, 03:51:58 pm »
Hello, I am having an issue with flash magic. Before I was using SWD. SWD was working before, but now I get the following error:

Quote
05: File load failure: EM(12). System rejected access at location 0x10000000 - verify Population of memory and peripherals

To fix this I am trying to use flash magic to program the target microcontroller. However, I am having difficulty with flash magic. It keeps giving me an "autobaud rate" error. I looked into it a bit and it could be the connections. The way I have it connected is as follows:

LPC1768 Pin # <------> FTDI RS232 3v3 Pin #
__________________________________
All VSS <------> 1 (GND)
All VDD <------> 3 (Power)
(RXD1) 74 <------> 4 (TXO)
(TXD1) 75 <------> 5 (RXT)

*Note I also have pin 53 (ISP pin) grounded

I have made sure to select the right part (LPC1764) and I am using a 12MHz crystal. I have also imported the hex file that was taken from the build of interest using LPC Expresso. I have tried stepping though each baud rate option, but it didn't work.

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