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Hello,

Sorry for this question, I´m new at LPC11xx family (used to AVR), but I am trying to flash a firmware that was compiled under LPCXpresso  V8.2.2 (source code provided by NXP), and the .HEX file also generated by LPCXpresso.

I was able to flash it using Flash Magic v.11.20, I´m using LPC1112/102 with the configurations in the screenshot.

But it seems like the firmware is not being executed after a hard reset, even with the the ISP pin high. Am I missing a config in Flash Magic?

The source code/project is this one:  https://community.nxp.com/docs/DOC-330476
I designed my own PCB following their design.



Regards,

Thanks for you reply Andy.

I agree with that, I´ve seen some ideas to split the UART, using resistors, diodes, but this is really not recommended, right?

Regards,

Hello,

Is it still possible to program the LPC1112 via serial port (using the bootloader) even if the serial port is being used by a different IC (serial-USB converter for instance) ? Or is it necessary to add resistors to one of the branches ?

Regards,