Re: GPIO Current Drives
2005-04-27 by javida13
Thank you, I was looking at the user s manual.
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RE: [lpc2000] GPIO Current Drives
2005-04-27 by Greg Deuerling
... Get the datasheet of the LPC2xxx of you choice and look in the Static Characteristics section. Look for IOL & IOH. Greg Deuerling Fermi National
GPIO Current Drives
2005-04-27 by javida13
What is the current drive capability on the pins when configured to GPIO outputs? Barry
Interrupt Select Register (VicIntSelect) bit positions
2005-04-27 by javida13
The LPC2138 User s Manual does not provide a description of each of the 32 bits for VICIntSelect (Table39). Does anyone have this information? For instance,
Re: [lpc2000] Re: LPC2138 GPIO
2005-04-27 by Diana Medeiros
Thanks guys, but now I realized there might be a problem with the power supply. I ll check all the I/O pins again, after this issue is solved. Di charlesgrenz
RE: [lpc2000] LPC2138 GPIO
2005-04-27 by Lowry, Jeff
According to page 76-77 of the user manual P0.2, P0.3, P0.11, P0.14 are open drain outputs for i2c use. These need pullups when used as output because they
Re: [lpc2000] LPC2138 GPIO
2005-04-27 by mfrazier@governors-america.com
The i2c pins must have external 10k pull ups added to work as GPIO correctly...this is not documented clearly at all!! Good Luck!! [Non-text portions of this
Re: LPC2138 GPIO
2005-04-27 by charlesgrenz
Do any of the other I/O lines that are configured as an Output exhibit the same problem or is it just that one (P0.10). I asked Philips in the beggining about
Re: [lpc2000] Re: LPC2138 GPIO
2005-04-27 by Bill Knight
Ouch! -Bill On Wed, 27 Apr 2005 13:34:13 -0000, tah2k wrote: I saw the same thing when I was evaluating the 2138. I was told by the Phillips FAE to use
Re: LPC2138 GPIO
2005-04-27 by tah2k
I saw the same thing when I was evaluating the 2138. I was told by the Phillips FAE to use external pull-ups when the I/O pin is configured as an output. The
LPC2138 GPIO
2005-04-27 by dimed77
Hi, Does the LPC2138 P0.10 pin have special electrical specs.? When configured as GPIO, it goes to only 2V when in logic 1 output, no load. Tried with 2
assert and GNUARM
2005-04-27 by soren_t_hansen
I ve started up a C++ standard make project in Eclipse, where I would like to make an applikation for the lpc2138. So far everything has been going alright
Re: [lpc2000] Anyone using Forth on LPC21xx?
2005-04-27 by Peter Jakacki
Thanks Stephen, is the VFX a target resident Forth or hosted? Also do you have a decompile or hex dump of the DO-PRIME word? I suspect it is a subroutine
Re: Flash variables
2005-04-26 by embeddedjanitor
There are two types of constants with ARM: rodata and literal pools. The rodata is used for stuff marked const in C, and the literal pool is used for large
Re: Anyone using Forth on LPC21xx?
2005-04-26 by embeddedjanitor
... and ... Have a look at graspForth. Google will find it. NB the licensing if you intend to use this commercially. I ve used Forth quite a bit for fiddling
Anyone using Forth on LPC21xx?
2005-04-26 by Stephen Pelc
... We ve implemented our VFX cross compiler for ARM. See: http://www.mpeltd.demon.co.uk/usbstamp.htm /tiniarm.htm /forth6.htm The LPC2xxxx are great for us -
Re: [lpc2000] Event log analyzing tool
2005-04-26 by Alex Rodriguez
Hey, what about Labview? I have done some nice DSO in the past using serial/parallel/USB and works really well... obviously you need to place big bucks to get
LP2124 flash programming problem
2005-04-26 by Boris Králik
Hi all. Now I made application board with LP2124 processor and when I want to burn it using LPC2000 flash Utility or lpc2k_pgm it is not working. Can I
Re: capture pwm missing
2005-04-26 by lp2000c
Take a look at the PWM.1 Errata. I did not see LPC2129 Erratasheet on the web, but bug should be the same as published in Erratasheets for other members of
RE: [lpc2000] LPC2114 code protection?
2005-04-26 by Hugh O'Keeffe
Here are Ashling s 2 cents on Code Protection (particularly relevant if using GNU as opposed to KEIL). This is taken from our FAQ at
LPC2114 code protection?
2005-04-26 by Ralf Knorr
Hi, all together this is the first time I write into the forum group. I followed the discussion about code protection. Has anyone informations about LPC2114
RE: [lpc2000] Code read protection in the LPC2194
2005-04-26 by Robert Adsett
... No, the 2104/5/6 do not have any read protection. I m just as happy that way but others feel differently. Robert Freedom has no meaning of itself.
RE: [lpc2000] Code read protection in the LPC2194
2005-04-26 by Stefano Coluccini
Hi all, I ve seen that you talk about flash protection on LPC2194; anyone of you know if the same is applicable to 2106 as well ? The LPC2194 user manual say
RE: [lpc2000] Re: Using C++ on LPC3128
2005-04-26 by SANDEEP BAKSHI
Hi All, I am new in this field. Can any one tell me some web site where I can learn, how to use C++ code for LPC series? Regards, Sandeep The Netherlands From:
Re: Anyone using Forth on LPC21xx?
2005-04-26 by valdef78
... peripherals ... I didn t use Forth since a long time, but I always like it and it could be interesting to have a C alternative for LPC..
Re: [lpc2000] Event log analyzing tool
2005-04-26 by Varuzhan Danielyan
Hello! Here is the link http://www.edaboard.com/viewtopic.php?t=115101&highlight=excel but I want to warn you, that first you have to register, and, maybe wait
Re: PWM demodulation
2005-04-26 by Peter Gray
Thanks Bob. Capturing both edges on a single timer works like a charm (I use a global var as a counter, and use it to populate a small global array from within
Anyone using Forth on LPC21xx?
2005-04-26 by Peter Jakacki
I ve been writing a token threaded Forth for the LPC21xx and just wondering if anybody else has been using Forth on this processor and what are their
RE: [lpc2000] Re: PWM's and UART
2005-04-25 by Ronald Lee
You can use a Maxim MAX3100 SPI to UART. It costs about $3. I have an application where I needed a third UART and it works fine for me. Philips is coming out
Re: [lpc2000] Event log analyzing tool
2005-04-25 by Michael Anburaj
Great! Thanks a lot Robert & Varuzhan for sharing these info. with me. Now I need to try them. Varuzhan, Could you also send me a link for this ebook? And if
Re: [lpc2000] Event log analyzing tool
2005-04-25 by Varuzhan Danielyan
To the Robert s advice to use a spreadsheet I want to add, that Excel can be used even on-line, to read and visualize (as a scope) the data directly from
RE: [lpc2000] Code read protection in the LPC2194
2005-04-25 by Greg Deuerling
... Hi Robert, thanks for the reply! As it usually happens, pretty much after I pushed the button to post my question I looked in the most recent LPC21xx/22xx
Re: [lpc2000] Code read protection in the LPC2194
2005-04-25 by Robert Adsett
... That s pretty well the sum total of it. The flash is read protected by having a specific location programmed to a specific value. I suspect everyone who
Code read protection in the LPC2194
2005-04-25 by gregdeuerling
Hello, I know the LPC2196 with Bootloader 1.61 or above supports code read protection (CRP). I ve searched Philip s site, I ve searched the LPC2000 Yahoo
Re: Using C++ on LPC3128
2005-04-25 by tah2k
The ARM7 is structured very nicely to handle C++. I have been writing embedded applications in C++ now for 15 years on 80C188 s, Arms, etc. All with less than
Re: PWM's and UART
2005-04-25 by bobtransformer
I think you can use independent duty cycles but the frequency would all be the same. You could always bit-bang a normal I/O pin for a uart if it s not too high
Re: PWM's and UART
2005-04-25 by bobtransformer
I have a similar interest. I d like to use both uarts and at least 2 PWM outputs that are 2 channels away from each other (for 2 phase 180 degree out of phase
Re: [lpc2000] Event log analyzing tool
2005-04-25 by Robert Adsett
... That makes sense I ve done similar things for debugging and tuning. ... I don t know of a tool that does exactly what you want. In the past however I ve
Re: PWM's and UART
2005-04-25 by valdef78
... doubts and I think someone could help me in this forum. ... independent. In the Philips LPC User Manual, they say it s better use channels 2, 4 and 6 for
PWM's and UART
2005-04-25 by amastella@via-rs.net
Hi, I m studying LPC2214 for use on a new project. I have some doubts and I think someone could help me in this forum. 1) I need to control 3 step motors. They
Re: [lpc2000] Event log analyzing tool
2005-04-25 by Michael Anburaj
--more details -- In the past I have used a lot of GPIOs for doing the same & with the help of LA, collect & analyze them. I have come across agilent/HP probes
Re: [lpc2000] Event log analyzing tool
2005-04-25 by Michael Anburaj
Hi Robert, Full story: I have developed a Event log mechanism to trap various events that occur at run-time within the Wireless MAC engine I am working on at
Re: [lpc2000] Event log analyzing tool
2005-04-25 by Robert Adsett
... Could you give us a few more details on the type of data you are collecting and what you would then do with it? Robert Freedom has no meaning of
Re: PWM demodulation
2005-04-25 by lpc2100_fan
Peter, use one Timer and capture on both edges. Depending on your system setup this limits the minimum pulse width somewhat but assuming it is more than 1
Re: [lpc2000] Re: IAP Problem
2005-04-24 by Bill Knight
I m using that code in a project with gcc right now and do not have any errors, warnings, or complaints from the compiler. The compiler is version 3.4.3 from
Event log analyzing tool
2005-04-24 by Michael Anburaj
Let me know a good, free or low cost event log (provided as a input file – Event name or number followed by time stamp, so on) analyzing tool. Which should
Re: IAP Problem
2005-04-24 by sig5534
... I looked at those as well, and I actually tried sticking in some of the code. But I get some errors from the GCC compiler. Something about
PWM demodulation
2005-04-24 by Peter Gray
On other microcontrollers I ve used, it was possible to start a single timer on a rising edge, and capture-and-reset on a falling edge (to capture the pulse
Re: [lpc2000] IAP Problem
2005-04-24 by Bill Knight
The location is 0x7FFFFFF1 indicating that it is a Thumb mode instruction. A bx instruction is typically used to branch to Thumb code from ARM. See my
IAP Problem
2005-04-24 by sig5534
I am getting an Invalid Instruction Exception trying to get my IAP routines running. When it branches to the IAP service routine at 0x7FFFFFF0, it goes to the