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[SOLVED] ARM - LPC11xx - enable serial programming via bootloader

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skyflyer

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Perhaps the title is not as explanatory as it could have been, but I am afraid I don't know how to rephrase it.

Note: I have not tried to program the chip yet.

How would I enter programming the chip via serial interface? I read in the user manual, that PIO0_1 should be low to start the ISP and PIO0_3 should be high - otherwise, it will start ISP command handler via C_CAN. My chip (LPC1113) does not have support for C_CAN. Does that still mean that I have to connect PIO0_3 to Vcc during reset?

Thanks!
 

The majority of pins (P0.3 included) have a pullup resistor enabled by default which will be able to hold the pin in a high state.
In addition if you read the manual closer it says Remark: On parts without C_CAN interface, the state of pin PIO0_3 does not matter.
You should ground P0.1 and then release the reset to enter the ISP mode
 

Thanks! I guess I'll have to learn how to read user manuals correctly! :)
 

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