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Problem in LPC2148 programming

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aandavan

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Hi,
I am using LPC2148 and I am using Flash magic to program the microcontroller. The problem is my board programs good for few times. But sometimes it not gets programmed even after resetting (pressing the reset button) the micrcontroller for number of times. But some of the board is programming good for number of times.
And why the microcontroller is not programming (flashing)? How to identify the microcontroller is fault?.
Suggest me some ideas.
 

Hi..

1. Check supply voltage for microcontroller and MAX232
2. Disconnect MAX232 and microcontroller. Short the TX and RX ,Check communication using hyper terminal.
3. After connect MAX232 and controller , check communication using hyper terminal.

Check what is the results??

Post the error message.
 

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