serial programming LPC11e12 problem | unable to communicate

lpcware — Wed, 15 Jun 2016 19:37:08 GMT

Content originally posted in LPCWare by chaitanya priya on Thu Sep 19 23:30:44 MST 2013
Dear users;
I am complete beginner with LPC family
I am presently trying to program LPC11e12 using serial port.
I am using Keil 4 to generate hex code and Flash magic to burn the code.
We are able to generate the HEx code without any error and have tested the code on a localy available development board(through UART), it is working fine.
However when we are trying to burn the code on our target board, We are unable to burn it. Flash magic says " UNABLE TO COMMUNICATE"
It will be of great help if anyone can tell us what we might be doing wrong?(Please state all possible faults that can occur , We will check for all possible remedies)
As stated earlier we are complete beginner so we don't know where to begin. If any input is required (schematic or code ) we are ready to share that too.
Your help will be much appreciated

Re: serial programming LPC11e12 problem | unable to communicate

lpcware — Wed, 15 Jun 2016 19:37:08 GMT

Content originally posted in LPCWare by tha on Fri Sep 20 15:28:09 MST 2013
Usually an UNABLE TO COMMUNICATE means the device is not in ISP mode. Please make sure the LPC11E112 is in ISP mode. To enter ISP mode:
1) Assert RESET
2) While RESET is asserted, assert P0.1
3) Release RESET
4) Release P0.1

Question, if you are using Keil to develop the code, why don't you just use Keil to download the code?

LPC MicrocontrollersのトピックRe: serial programming LPC11e12 problem | unable to communicate

serial programming LPC11e12 problem | unable to communicate

Re: serial programming LPC11e12 problem | unable to communicate