... I've had this happen on a 2136 for no obvious reason - It was recoverable by putting the chip in ISP mode (P0.14 low on reset) then reprogramming via JTAG....
Thank you very very much. I will try it today and post the results. my best regards, Lucas ... http://www.flashmagictool.com/ to ... BootROM. ... legally ... ...
Leon, i did not connect anything with the board powered up, but im still not sure the JTAG isnt damaged ... would it be possible for the jtag to get damaged...
... From: "senhoruilson" <wigans@...> To: <lpc2000@yahoogroups.com> Sent: Wednesday, October 01, 2008 6:45 PM Subject: [lpc2000] Re: HELP! lost my JTAG...
One question : i have 2 UARTS on LPC2148. Can i choose any for the ISP ? The pin P0.14 is described as "Data Carrier Detect input for UART1" . is that the pin...
I just have one more question about LCD controller problem. What about executing program code from external FLASH? That is around 4bytes/Hz of data and I...
You must use UART0 for ISP Bootloader. P0.14 is the correct pin to use to enter ISP Mode. At least by glancing at some schematics from our devices that happen...
Hi All, I have only seen the Embedded Artist LPC2478 development kits (see here http://tinyurl.com/4ldzna ) Questions Q1 Has anyone see other LPC2478...
Hello all ! the problem was solved as soon as i reprogrammed the chip using ISP and 'flash magic tool' . I happened to have a 'FTDI TTL-232R-3V3' usb cable...
It sounds like your application uses a PIN that JTAG needs to use. Your application was running and had control of that pin. (Most likely setup as an output)....
CRP is what I had originally suggested but given that they were working with IO Pins and said that it seemed to be working for awhile and then stopped is what...
I'm interested in people's opinion on this. I am using a I2C Graphical Display interfaced with a LPC2148. On occasion, the I2C command sent out drops a byte...
Certain levels of CRP can cause the JTAG to NOT work see. UM10139 . If you want to be sure that CRP is not causing the JTAG problem you should have it turned...
So, here are the results of my latest tests : i recompiled the code with some modifications in order to try to detect the bad pin. when i configured pin 1.24...
With that kind of support I'd vote by taking my display business to someone that will provide ack/nak response. Can you improve the noise reduction? Better not...
Hi, ... Olimex LPC2478-STK and the NXP IRD. Use Google. ... Loads I expect. ... We have both. The 2478-STK is great. -- Paul Curtis, Rowley Associates Ltd...
There aren't too many I2C graphical display companies around. Most still use RS232. I don't know if it is noise or not. Haven't determined the cause. ...
When I get a chance I'll look through the Embedded Trace Macrocell (Ch 23) which uses P1.25 and see if there is anything there that can cause jtag to stop...
I read the manual on chapter 23 and understood that pin P1.25 is the EXTIN[0] wich is labelled as external trigger input on the 'embedded trace macrocell' . i...
Can you post an snippet of your code that shows how you are setting up your GPIO please IE: where you define your pins as inputs or outputs ... From:...
Hey All, I've got a strange phenomenon happening on my Olimex LPC2138 devel board. It's been about a month since I last touched my project and I was getting...
Motors are a terrible source of noise. Do you have an oscilloscope you can use to look at any of the lines going back to the board? Check your power supply,...
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