I hav been working with the LPC935 for some time and would like to use the DAC0 output - But it would not work !! The reason was - I was using the MOD935 file...
LPC932A2 was already in the latest NXP MCU selection guide: http://www.standardics.nxp.com/literature/other/microcontrollers/pdf/line.card.pdf ... Roger Lu...
Hi! We are planing to use a 28-pin-PLCC socket in our new design. The idea is to do it without the socket when the software is stable and solder the controller...
Dear Markus, better idea is don't use socket at all. Solder it directly on board and program it through ISP. I had some board with LPC932 (not A1) but my...
Hi Markus, I used the 28-pin-PLCC LPC932 sockets in my design too. This socket is a popular product in China, and we can buy it in any big city or from the ...
Min Zheng
minming.zheng@...
Mar 27, 2008 4:54 am
482
Thank you guys for the quick replys! I agree with Stefano, don't use sockets at all. But sometimes you just can't help it. Well, today I got samples from 3M...
in isp using three pulse entry on reset mode whether bootloader is required?
Thanks and Regards, VIJAY “Smile... It increases your face value.” TEAM...
Vijay M. Satra
vijay_satra@...
Mar 27, 2008 3:14 pm
484
Dear Vijay, I do not understand your question exactly. I developed a LPC programmer which is quite good for the entire family of LPC's chips . Thanks to...
Thanks for your promt reply.
my question was if i erase the bootloader in isp then can i program this ic through three pulse entry ?
IN ICP methode i can...
Vijay M. Satra
vijay_satra@...
Mar 28, 2008 7:08 am
486
Hi, everybody! I am trying to build a parallel port ICP adapter. I think it will be quite usefull and low cost. But I can not read data from the...
... I think the parallel port of the PC has pull-up resistor that can influence the reading. Please use a bidirectional transceiver like 74hc245 to force the...
It dose have pull-up on the PDA line, because I use open-drain inverter 74HC05, connection diagram is similiar to the parallel port-iic adapter(you can find it...
Circuit is OK. If you are sure that all timings are respected then the CPU doesn't work. In particular mode check that tVR time (RST delay from VDD active) is ...
Hello, I tried to configure all P5.x pins as open drain outputs, setting both P5M1 and P5M2 to 0xFFH. My target application has this kind of circuit attached...
In any case you probably should add a pullup to 5v to handle any leakage that will occur. You can calculate how much leakage you have by measuring the voltage...
... Does anyone knows if such a circuit would also be ok for the LPC901? In any case please report if it works, that would be interesting to know. Cheers, ...
Hi, it's been a while since I was dealing with the LPC900 but this is what I remember: ICP is possible with all LPC900 devices, including the LPC901. IAP is...
ISP Lite is possible with All LPC900.. Regards, Nilesh (09925049517) ... From: lpc2100_fan <lpc2100_fan@...> ...
I am using keil's START900. Anybody know the right settings for this assembly program? I know it is a lot to ask. Thank you. ALvin... APSTRON P.O. Box 10336 ...
Hello, I'm a new LPC935 user and for my first application, my microcontroller BUG, where is the problem??? (Sorry for my bad English, I've some difficulties...
... You forget to set the pin 2.3 as output pin: you must reset P2M1.3 and set P2M2.3 bits respectively. At reset the pins are all set as inputs. I suggest you...
i'm first time to used this chip, i just write simple program to blink LED from keil example. It not working, i have testing using keil simulator and it...
Hi all, (new member here...) out of curiousity I had a look at the source code of ISP to ICP bridge v16, available in the files section of this group. It's a...
i want accurate timing so i used external crystal of 8MHZ with LPC936 but i found the following problems. 1.With crystal (8MHZ) & its capacitor value 33pf or...
Do not use AUXR1.... cuase it will not help i think... also check the errata sheet of Micocontroller.. Regards, Nilesh (09925049517)Â Potent embedded...
Try a solid state relay that switches at the zero voltage crossover point. I made my own and it stopped noise getting from the relay (mechanical) to the...
I am using the LPC936 as well with 7.328MHz crystals. I have had the same problem in three different projects therefore I doubt it has anything to do with...
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