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Topics - eagle

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LPC9xx/LPC9xxx / i wish use no_touch
« on: January 04, 2007, 06:33:45 am »

I have a dude, the NoTouch for P89LPC935 is for ISP or IAP mode?

Because i have read differents papers, and They are contradictory. I wish use this function for ISP mode.

The boot vector for ISP is 1FH, and in your function puts 01H, and the direction of call (PGM_MTP) must be changed, because FF03H is wrong, no?


LPC9xx/LPC9xxx / Exit of ISP
« on: November 20, 2006, 06:14:37 am »
Once I have entered way ISP and I have been able to record, as I leave that way for the perpendicular operation device?

Because right now I record, but I do not leave way ISP and the device does not do anything.


LPC9xx/LPC9xxx / Problems with P89LPC935
« on: November 15, 2006, 11:09:01 pm »

I have a problem with P89LPC935.

I have designed a electronic board for the signal of RST.

This signal is correct, then first i send this signal to he uC. Then I intent program the device.

In this moment, i use the Flash Magic. The first time the device is programed, but when i wish to program more times, the device don't do anything, the Flash Magic tell me "Unable to communicate. Ensure no other applications are using the COM port. Try raising or lowering the baud rate".

I don't understand anything. Why the device is good the first time and never more

LPC9xx/LPC9xxx / Programming P89LPC935
« on: November 08, 2006, 01:50:33 am »

I work with a P89LPC935 in ISP mode. When I try programming the device with Flash Magic, I don`t know what Freq Osc I must use.

I put 7.373Mhz, but the programming is slow. I put 115200 baud rate.

What can i do so that the programming is fast?



While i was programming the uC (ISP), I canceled the transmision. From this moment the uC don't go in the programming mode, and it executes in all moment, in program mode and run mode.

Somebody know the solution?, because in this moment i cannot program the device.


P89C51Rx+/P89C51Rx2/P89C66x/P89C6xX2/P89V66x / clock mode in P89c668
« on: August 30, 2006, 03:32:21 am »

I work with a P89C668. In this uC you can work with 6 mode clock (default) and 12 mode clock (default), but i don't know as changing this modes. Are There Anybody what know this?

When i switch on the uC in first time, itself put in 12 mode clock, and i want to change or it isn't possible, then for other time as i must do it so that is way 6 mode clock.


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