Author Topic: problem in ISP programming of 89LPC938  (Read 5032 times)

Ajay Zinage

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problem in ISP programming of 89LPC938
« on: February 20, 2007, 09:02:16 pm »
Can anyone tell me what is the timing sequence n specifications for 3 pulse method for ISP programming of 89LPC938.

Can the new IC be directly programmed using the flash magic or we have to use the 3 pulse method for resetting the IC

please can anyone help me


erikm

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Re: problem in ISP programming of 89LPC938
« Reply #1 on: February 21, 2007, 05:31:30 am »
Can the new IC be directly programmed using the flash magic

if 'new' means 'factory fresh' then yes.

Erik
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Andy Ayre

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Re: problem in ISP programming of 89LPC938
« Reply #2 on: February 21, 2007, 07:31:12 am »
The timing requirements for the pulses are given in the user manual for the device, which you can get from the NXP web site.
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Ajay Zinage

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Re: problem in ISP programming of 89LPC938
« Reply #3 on: March 26, 2007, 12:51:31 am »
well i had tried the timing sequence provided in the manual but it doesnt get programmed

the flash magic generates error stating use higher baud rate. also even if baud rate is increased the IC doesnt get programmed

can anyone please suggest me what to do in this case

thanks
Ajay

Andy Ayre

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Re: problem in ISP programming of 89LPC938
« Reply #4 on: March 26, 2007, 10:03:01 am »
How are you generating the pulses?
Have you checked them with a scope?

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