Reply by Navneet Vinaik●December 21, 20072007-12-21
Dear Nilesh,
Thanks for your advice....I have been using ICP method for the past some time
and it works properly. ISP is somewhat limited, so either ICP or parallel are
good techniques.
I Would request you, if you can share the programmer circuit with me as it will
ease my task.
Rgds,
Navneet
Nilesh wrote:
Dear ,
You are able to program it first time becuase of Factory Programmed ISP
setting.. I mean to say BSB (Boot Status Bit) = 1. Once you program it will
be made zero by your ISP Programmer.
It is good Idea to use 3-pulse entry on RESET. Or you can also use UART break
detect method so you can program IC again and again.
For LPC9xx series best option is program IC using ICP method only.. Commercial
programmer available at very low cost .. Or If require I will send you ICP cable
using Parallel port circuit to you.... And application software.
Regards,
Nilesh
goossensd wrote:
Hi,
I have a problem with programming P89LPC922.
I use ISP, i can programm it 1 time then i cannot programm it again. If
i change the processor, i can programm it 1 time then it's all. The
processor doesn't respond on TX.
Do you have an idea of what appends?
Thanks a lot
David
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Reply by Min Zheng●December 19, 20072007-12-19
Dear,
I met the same problem when I used P89LPC932. The solution of the "1
time program" is to set BSB(Boot Status Bit). This problem will happen when
you use a new chip. If the chip has been burn and erase before, "1 time
program" will not happen again.
Best regards,
Min
Reply by goossensd●December 19, 20072007-12-19
thanks all, it is a problem in my code.
--- In l..., "goossensd" wrote: >
> Hi,
> I have a problem with programming P89LPC922.
> I use ISP, i can programm it 1 time then i cannot programm it again. If > i change the processor, i can programm it 1 time then
it's all. The
> processor doesn't respond on TX.
> Do you have an idea of what appends?
>
> Thanks a lot
>
> David
>
Reply by Fausto Marzoli●December 19, 20072007-12-19
Alle 17:41, mercoled19 dicembre 2007, goossensd ha scritto:
> I have a problem with programming P89LPC922.
> I use ISP, i can programm it 1 time then i cannot programm it again. If
> i change the processor, i can programm it 1 time then it's all. The
> processor doesn't respond on TX.
> Do you have an idea of what appends?
- You don't send a break on the serial port before starting ISP
- You have not configured and activated in your firmware the serial port for
break detecting
You are able to program it first time becuase of Factory Programmed ISP
setting.. I mean to say BSB (Boot Status Bit) = 1. Once you program it will
be made zero by your ISP Programmer.
It is good Idea to use 3-pulse entry on RESET. Or you can also use UART break
detect method so you can program IC again and again.
For LPC9xx series best option is program IC using ICP method only.. Commercial
programmer available at very low cost .. Or If require I will send you ICP cable
using Parallel port circuit to you.... And application software.
Regards,
Nilesh
goossensd wrote:
Hi,
I have a problem with programming P89LPC922.
I use ISP, i can programm it 1 time then i cannot programm it again. If
i change the processor, i can programm it 1 time then it's all. The
processor doesn't respond on TX.
Do you have an idea of what appends?
Thanks a lot
David
---------------------------------
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Reply by "Poore, John"●December 19, 20072007-12-19
Dear Nilesh,
Can I get a copy of your: Parallel port circuit.... And application
software?
Thank you very much,
John W. Poore
________________________________
From: l... [mailto:l...]
On Behalf Of Nilesh
Sent: Wednesday, December 19, 2007 8:56 AM
To: l...
Subject: Re: [lpc900_users] problem with P89LPC922
Dear ,
You are able to program it first time becuase of Factory Programmed ISP
setting.. I mean to say BSB (Boot Status Bit) = 1. Once you program it
will
be made zero by your ISP Programmer.
It is good Idea to use 3-pulse entry on RESET. Or you can also use UART
break detect method so you can program IC again and again.
For LPC9xx series best option is program IC using ICP method only..
Commercial programmer available at very low cost .. Or If require I will
send you ICP cable using Parallel port circuit to you.... And
application software.
Regards,
Nilesh
goossensd wrote:
Hi,
I have a problem with programming P89LPC922.
I use ISP, i can programm it 1 time then i cannot programm it
again. If
i change the processor, i can programm it 1 time then it's all.
The
processor doesn't respond on TX.
Do you have an idea of what appends?
Thanks a lot
David
________________________________
Save all your chat conversations. Find them online.
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Reply by goossensd●December 19, 20072007-12-19
Hi,
I have a problem with programming P89LPC922.
I use ISP, i can programm it 1 time then i cannot programm it again. If
i change the processor, i can programm it 1 time then it's all. The
processor doesn't respond on TX.
Do you have an idea of what appends?