There doesn't seem to be much info on development tools for this chip - is the LPC9401 dev kit what's needed - again can't find info. Does the Keil compiler...
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syzlak_icd
Nov 25, 2006 6:37 pm
I am using the 924 as an I2C slave device and am running into a very strange problem!! The 924 will give an ACK to it's own address but immediately after the...
369
phb_miller
Nov 26, 2006 10:30 pm
... OK - from the values written you are intending to use the internal I2C bus clock generator BUT you have enabled the T1 overflow as the clock source so the...
370
bradziegler
Dec 11, 2006 10:46 pm
I've been working with a hardware design for my own evaluation board of sorts that has 8 LEDs, a couple of DIP switches, pushbuttons, etc.... The circuit is...
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Pramod
mail_psj
Dec 12, 2006 6:04 am
You have a 7402 in the schematic, if it's the same on-board then you ought to change it to a LV family. BR Pramod...
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bradziegler
Dec 12, 2006 6:46 pm
What would be the functional difference in using an LV-series versus a HC/HCT-series IC, other than low voltage in the LV case? After checking this with what...
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Pramod
mail_psj
Dec 13, 2006 6:26 am
1. In your case you have a working circuit to compare -- then why not use the same parts / families. You could refer to the Philips App Note -- Interfacing 3V...
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bradziegler
Dec 13, 2006 2:17 pm
In reality, I have used the same part families. My board uses a MAX3223 instead of a MAX3221 (since the 3221 is not available as a DIP). The only other...
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lorcan
lorcan4474
Dec 13, 2006 3:35 pm
Hi This may be a red herring, but we have had problems in the past with RS232 chips when the charge pump capacitors are too small. I think it was the Maxim...
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Nilesh
inileshce
Dec 14, 2006 5:41 am
Yes exactly right. We have also faced such problem with MAX3221. First we are using with P89LPC932 at that time we are using 100nF Capacitor but after release...
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Pramod Joglekar
mail_psj
Dec 14, 2006 4:50 pm
A checklist just to make sure: 1. FlashMagic settings : Options - Advanced Options -- Hardware config - Use RTS........ 2. Jumpers inserted for 'PROG' not...
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bradziegler
Dec 17, 2006 12:50 am
Everything you said is correct and setup that way. Just having a hard time understanding #4. What do you mean by having 3v3 selected after the transistor? ...
379
john
j_funk1425
Dec 17, 2006 3:12 am
I think he's asking if the transistor is working (turning Off and On for the required pwr sequence) and if 3.3V is being supplied via the transistor to the uC....
380
Pramod
mail_psj
Dec 18, 2006 2:02 pm
Check voltage at LPC, after the transistor has been driven ON by the '02. You could have the transistor dropping more than 0.2V(Vce), preventing proper...
390
miclpc900
Feb 18, 2007 2:03 pm
Hello, which commands are required in ICP mode to read the flash memory (code memory) of an LPC921? Unfortunately, there is no example in the ICP specs. ...
404
maciej_wiatr
Mar 19, 2007 10:16 pm
Hi there, I'm having problems putting the LPC into the total power-down mode when using a boud rate of 9600 for the UART interface. The courious thing is that...
410
ales.moskon
Apr 5, 2007 5:39 pm
Hi Im a beginer in this. Im from Slovenia so my language is not so good, and i have a question how to connect and program 4X20 LCD to LPC936, and ho to write a...
411
phlpcmicro
Apr 6, 2007 2:10 am
Hi All and NXP App's, I am doing a development with a LPC925 that will be the ISP to ICP bridge. I would like to modify the latest (ver 1.7) Bridge code so I...
419
Fausto Marzoli
faumarz
Apr 19, 2007 2:04 pm
I just found an error in the P89LPC952 User Manual (Rev.00), and also in the reg952.h header file that you can download from the Keil website. The error is in...
420
Fausto Marzoli
faumarz
Apr 19, 2007 2:21 pm
... My fault: this is not true. I just checked the esacademy code generator, and the code is correct now. Maybe I downloaded the UART0 code and then modified...
421
Fausto Marzoli
faumarz
Apr 20, 2007 7:20 am
I found out another problem with using LPC952 serial port 1: the interrupt enable bit is IEN2.2 and the IEN2 SFR address is D5H. (This is correct, as in the...
422
Fausto Marzoli
faumarz
Apr 20, 2007 4:21 pm
... No, my fault again... the bug is in the Esacademy code architect that generates an ANL instead of a ORL with the bitmask. I was so "fused" after many hours...
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phlpcmicro
Apr 20, 2007 4:55 pm
... problem ... Code ... in the ... => Do very body a favor and inform Esacademy so code Architect can be updated. support@... ...
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userof936
Apr 28, 2007 4:14 am
I have just purchased a Keil EPM900 emulator. After installing the uVision software, I am unable to use the help system. I was told to update the software to...
429
poorejw
Jun 15, 2007 10:51 pm
Using a P89LPC932, 3, 4, or 5, when Timer 1 overflow (Timer 1 in Mode 2) is used as the source for I2C SCL (CRSEL = 1), TH1 determines I2C SCL rate. I have...
430
Eugene Peng
y3peng
Jun 20, 2007 8:40 pm
Hello, I am starting a small project on LPC932. There seems to be quite a few toolchain options out there: Keil Rigel Raisonance IAR SDCC (open-source) Which...
431
Poore, John
poorejw
Jun 20, 2007 10:59 pm
Keil MCB900 ________________________________ From: lpc900_users@yahoogroups.com [mailto:lpc900_users@yahoogroups.com] On Behalf Of Eugene Peng Sent: Wednesday,...
432
lpc2100_fan
Jun 21, 2007 12:32 pm
Hi, there are two options from Keil. A free 4k version called LPC-Studio and a low cost 16k version for NXP LPC900 only. This version can be found here:...
433
john
j_funk1425
Jun 23, 2007 2:53 am
I noticed that the User manual (UM10116.pdf Rev. 02 — 9 June 2005) states that the IAP functions return an error when the Carry Flag is set. But the ISP boot...
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Dr. Vithal N. Kamat
vnk_ad1
Jun 26, 2007 3:09 pm
Dear John, I had a look at the LPC2_ISP_8K_V04.a51, and it is the F0 flag in PSW. You are right that the IAP function returns error when the Carry Flag is set,...
