RE: [lpc2000] Trouble with P0.2 as GPIO
2004-07-27 by Curt Powell
Read the I2C documentation in the user manual. P0.02 and P0.03 are open drain pins. You need a pull-up. (Been there, done that, got the T-shirt!) ... From:
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2004-07-27 by Curt Powell
Read the I2C documentation in the user manual. P0.02 and P0.03 are open drain pins. You need a pull-up. (Been there, done that, got the T-shirt!) ... From:
2004-07-27 by rkd0930home
... board. ... IO0DIR ... have ... I just found a previous email on the issue and I now know that this pin is an open collector output. Thanks anyway. Bob
2004-07-27 by rkd0930home
Hi All, I am having difficulty with controlling pin P0.2 as a GPIO output signal. I am successfully controlling several other pins on my board. I have set bit
2004-07-27 by Gus
Joe, I agree with you. We are considering selling a FAT development package that comes with the board and the source code for low price for non-commercial
2004-07-27 by Joe Hlebasko
Gus, It also depends on volume of the product. If I was planning on selling low volume (
2004-07-27 by Gus
Joe, If you really think about it, ALFAT is much cheaper than FAT source code. Keeping in mind the cost of the time you need to put into FAT code to compile it
2004-07-27 by nourson54
... its ... For what you wanna do : http://www.iinchip.com/wiznet/index.html W3100A is a static chip than can handle 4 TCP/IP sockets via a I2C or parallel bus
2004-07-27 by Lewin A.R.W. Edwards
... how ... designs. Faced with the same problem, on three occasions (for different employers) I have implemented my own FAT12/16/32 filesystem. No LFNs,
2004-07-27 by daescandon
Hey Fellas, Does anyone have some quick C code to put the LPC into a powerdown mode? Ideally, I would like to set all the peripherals off except the ADC, read
2004-07-26 by Joe Hlebasko
Gus, It looks like an interesting product. However my needs are such that I can not afford ($, power or space) another MCU to nothing but FAT disk operations.
2004-07-26 by Alaric Snell-Pym
... I ve added it to the Wiki, both as a development board and under the entry about storage devices. Man, I need to tidy up that front page at some point...
2004-07-26 by droethig_groups
I am a bit confused about the use of the MEMMAP register on startup. Specifically, when a JTAG emulator (Wiggler) is being used from GDB. The data sheet says
2004-07-26 by haack0815
... Hi Stephen, ask Philips (micro.support@philips.com) about your problem, they can help you. Andreas
2004-07-26 by Stephen Pelc
We received the latest batch of boards on Friday and found a high proportion of failures when using IAP from within our software. Disabling the MAM and then
2004-07-26 by Gus
Hi all, I saw a post on question on SD cards and figured this group may be interested in checking my new chip out. It is LPC2114 chip that is preprogrammed
2004-07-23 by Invector Embedded Technologies
That certainly would constitute as a problem ;-) I only looked at the instructions for the eclipse download which support 98SE and i just assumed that the CDT
2004-07-23 by johnnorgaard2003
Hi Pontus There is one simple reason why you dont get cdt to work on your PC. CDT does not run on win98/windows ME. It runs on 2000 and XP. I think I saw this
2004-07-23 by killtheclock
Now I got it: It is really simple. The only problem was that I inited P0.8 to be used as TxD UART 1, PINSEL P0.8 bits set to 01. Then in the main program I set
2004-07-23 by Invector Embedded Technologies
Sigh, Tried it twice without success. I finally got the CDT plugin installed and visible through the update feature of Eclipse. However when i try to create a
2004-07-23 by Karl Olsen
... the ... is ... written, ... The errata sheet mentions an issue with writing to EXTPOLAR or EXTMODE. Karl Olsen
2004-07-23 by frankpoplonski
... listed ... me to ... Hi Jo, try http://www.sandisk.com/oem/ I hope that will help. Frank
2004-07-23 by douglasbolton
... Leighton I ve tried all of the above and even tried another board with no luck. As soon as I write EXTMODE to a value the JTAG aborts. If I program flash
2004-07-23 by Leighton Rowe
Hey Doug, I meant clearing the flags after setting EXTMODE as suggested on pg.68. EXTMODE = 0x08; //only controls the sensitivity EXTINT = 0x08; //clear EINT3
2004-07-23 by douglasbolton
I ve now got it down to any write to the EXTMODE register causes the processor to fail. Even writing the reset value of 0x0 to it causes a problem. Below is
2004-07-23 by johnnorgaard2003
Hi I found this link, may be something for you. http://homepage.hispeed.ch/py430/mspgcc/index.html Yes I know not an ARM but more folks are using Eclipse and
2004-07-22 by Joe Hlebasko
Thanks for referring me back to this page. I had skimmed the docs listed here. Alas I did not skim deep enough though. These links did lead me to the
2004-07-22 by Joe Hlebasko
My understanding (from sdcard.org) is that to use SD card without the copyright protection is OK without license. To use the SD card with copyright protection
2004-07-22 by douglasbolton
... (iolpc2129.h) ... 3 ... Thanks Leighton but I d already modified my IAR header file for the lpc2129. Clearing the interrupt before the EXTMODE = 0x08
2004-07-22 by Jan Szymanski
... processor ... and ... It looks like only SPI/MMC mode specifications for SD cards are freely available . I tried many times to contact people behind
2004-07-22 by Lasse Madsen
Hi Marcio, The code is written for a SPI uart (MISO,MOSI,SCK) in the AVR processor so I would guess SPI if what you refer as SD mode is the special parallel
2004-07-22 by jpsg123
I finally got the thing to work. I was writing to the wrong address space for the external interrupt registers. On exit from power down, I do need to enable
2004-07-22 by nourson54
I have just seen this on the imagecraft web site : http://www.imagecraft.com/software/ARMdevtools.html I m using the MSP430 version of the compiler and all I
2004-07-22 by atmelbr
Lasse, The code is SPI mode,SD card mode or both ? Regards, Marcio Montenegro ... it s ... processors
2004-07-22 by haack0815
Hi Joe, take a look at www.open-research.org.uk/ARMuC/index.cgi?SD_Card I hope that will help you. Andreas
2004-07-22 by lynchzilla
Hi Pontus. When you download the CDT zip file and then unzip it, you should get an eclipse top folder and two sub-folders, features and plugins. Make sure
2004-07-22 by wildmojo2003
Lasse, Again thanks for information. Are the commands to the SD and MMC freely available or is a license requried? I ve tried the sdcard.org and sdcard.com
2004-07-22 by Invector Embedded Technologies
Hi all, I tried installing the CDT plugins as per the instructions but it never comes up when I do the File- New Project sequence in Eclipse. Anyone knows what
2004-07-22 by jpsg123
Well, good to hear you at least are seeing the cpu wake up. My problem is I can t make it wake up at all. :( jpsg123
2004-07-22 by Lasse Madsen
Yes its VERY easy to port you only have to alter it one place and it s all written in ANSI C so it requires a minimal effort. I have purchased it my self and
2004-07-22 by wildmojo2003
Lasse, Thanks for the response. The source code solution from www.prllc.com is it suitable to be ported to a different MCU? Joe
2004-07-22 by Leighton Rowe
Are u using IAR? I had to modify the header file I got (iolpc2129.h) because apparently the EINT3 channel wasn t defined. Well assuming that you re using
2004-07-22 by Ben Lau
Hi Jim, It is great to hear your work :) I am currently using OCDLibremote + GDB(from GNUARM) with a wiggler compatible adapter to debug lpc2104 application.
2004-07-22 by douglasbolton
When I set up an external edge sensitive interrupt EINT3 on an lpc2129 all sorts of problems happen. The jtag stops working and won t work again until I
2004-07-22 by nedeljkomiljevic
Hi, well, the unit does something on exiting the poer down mode but I have a feeling that the peripherals (e.g. UARTs) could be in need of re-initializing...I
2004-07-22 by Taner Mutlu
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2004-07-22 by chazeltopman
I appreciate the contribution to others and I have a question. Is it possible to do the same on Mac OS X? I am currently using gnude-OSX. Thanks. Rob
2004-07-22 by Curt Powell
Yup. Since we weren t using i2c we didn t read the part that said they re open-drain outputs. 10K pull-ups did the trick... ... From: microbit
2004-07-21 by jpsg123
... IRQ) ... Hi, I m doing the same thing and I m still trying to figure out how to wake the unit up. I think you maybe missing something. My sequence in
2004-07-21 by Robert Adsett
... Can you use Yahoo-Groups with e-mail? Definitely yes. I don t think there are Yahoo issues with Outlook Express but I would recommend getting a mail
2004-07-21 by microbit
Have you pulled those pins ? Off-the-cuff from memory they re the I2C pins, and open drain. From your sequence xample seems like you have moments where the