Re: P2 as output
2004-11-30 by sifiland
I have the solution. In Header_Datei of compiler manufacturer P2 was not defined as port. sifiland
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Natural alignment of 32-bit values within structures (gcc 3.4.1)
2004-11-30 by dpbevin2k
I ve got a problem accessing 32-bit values within nested structures using gcc 3.4.1. I don t know whether it is a problem with compiler flags or because the
RE: [lpc2000] Re: Slightly OT -- Fast Divide By 10
2004-11-30 by Paul Curtis
...and, just to say, this is also in the book Hacker s Delight (of which I have a copy). There is a slightly different version of this code in Hacker s
RE: [lpc2000] Re: Slightly OT -- Fast Divide By 10
2004-11-30 by Paul Curtis
All, The division by multiplication technique is well known, but does not generate a remainder--you need to compute the remainder by multiplying and
Re: Slightly OT -- Fast Divide By 10
2004-11-30 by Karl Olsen
... and ... Check out How to optimize for the Pentium family of microprocessors http://www.agner.org/assem/pentopt.pdf The section Division (all
RE: [lpc2000] LPC Series - Good things gone bad...
2004-11-30 by Lasse Madsen
Hi Art Well it s not a bug it s just a basic mistake... Normally one would take the /SS pin for an output to drive Slave Select lines but this is not the case
Slightly OT -- Fast Divide By 10
2004-11-30 by James Dabbs
I m trying to squeeze a few more cycles out of one my LPC, and I m looking for an optimized way to divide by 10 and leave the quotient and remainder. I.e., a
RE: [lpc2000] LPC Series - Good things gone bad...
2004-11-29 by Messal, Art
Hi Lasse, What is the SPI master = Hardware High on SS pin bug that you mentioned? thanks, -Art- _____ From: Lasse Madsen [mailto:lasse.madsen@elektronik.dk]
Re: [lpc2000] LPC Series - Good things gone bad...
2004-11-29 by Robert Adsett
... A FAQ/ useful notes list like this is a good idea. I d suggest the ARMuC wiki if onlly because it would be an easy way to collaborate on such a list.
RE: [lpc2000] LPC Series - Good things gone bad...
2004-11-29 by Lasse Madsen
... Should have been: Let s make a list of beginner mistakes etc. It ll help people, help them Selves. No need to be too cocky hehe :) Regards lasse ... From:
LPC Series - Good things gone bad...
2004-11-29 by Lasse Madsen
I think that we ought to make a list of all the mistakes that is generally made with these controllers. There are a lot of people (my self included) that
RE: [lpc2000] Re: LPC2129, analog port question.
2004-11-29 by Lasse Madsen
Hi Richard From what specification do you concoct that information? Regards Lasse ... From: Richard [mailto:richas@yahoo.com] Sent: 29. november 2004 18:54 To:
Re: [lpc2000] Re: LPC2129, analog port question.
2004-11-29 by Anton Erasmus
... At least now I know why my attempt to use only one A/D channel, and the rest as 5V digital inputs corrupted the A/D readings on my analog input. I hope
Re: LPC2129, analog port question.
2004-11-29 by Richard
Note: 5V on any pin that CAN be configured as an ADC input will corrupt the ADC conversion values. Richard ... the ... the ... will ... over ... that they
Re: [lpc2000] LPC2129, analog port question.
2004-11-29 by Anton Erasmus
... The pins are supposed to be 5V tolerant, hence my assumption is that they should be able to handle up to 5V. The A/D converter is designed, so that it s
LPC2129, analog port question.
2004-11-29 by digtalfreak
I am using the LPC2129 in an application and I need to know if the analog port will be damaged if the port gets more than V3A at any time. The manual says that
Re: [lpc2000] Re: SPI throughput
2004-11-29 by FabioDB
... With cclk at 58,9824 Mhz I have setted S0SPCCR=0x06 it works! Am I lucky? Whit S0SPCCR=0x05 it don t work. -- FabioDB Altraqua
Re: SPI throughput
2004-11-29 by haack0815
Hi, what have you done to get 10Mbit/s? The LPC21xx can only work up to 7.5Mbit/s (60Mhz/8). With the new LPC213x you can go up to 30Mbit/s (new SSP
Re: SPI throughput
2004-11-29 by haack0815
Hi, what have you done to get 10Mbit/s? The LPC21xx can only work up to 7.5Mbit/s (60Mhz/8). With the new LPC213x you can go up to 30Mbit/s (new SSP
Re: [lpc2000] SPI throughput
2004-11-29 by FabioDB
... In tests I had 10Mbit/s of throughput. -- FabioDB Altraqua
Question on how to calculate timer intervals on LPC2106
2004-11-29 by ©@°Ø¦â¤p¿ß
Hi, I am new to this LPC group and I would like to say hello to everyone who is reading this message! Currently I am working with a LPC2106 processor and my
SPI throughput
2004-11-29 by elikcohen
Hi, I m trying to figure out what is the max bitrate that I can get from SPI in the LPC21XX family. The datasheets mention that it is one eighth of the input
Re: LPC2130
2004-11-28 by philips_apps
Hi, sorry for the confusion about file size of the Data Sheet. This is simply because of compression difference in the Adobe Acrobat. The posted file on the
Re: read with SPI // Max voltage for ADC is 3.6V!
2004-11-28 by lpc2100_fan
Domingos, the ADC does not support 5V reference. The max. voltage supported is 3.6V. There is a good chance your device is gone for good. Bob
Re: read with SPI
2004-11-28 by domingos_bento
Hello, I have analog supply pins hooked up correctly!!! One the problem is the following: the data are not read in the first rising edge. I already put CPHA=0
Re: read with SPI
2004-11-28 by Richard
Analog supply pins hooked up correctly? ... scale. ... (2.5V) ... that ... has FFFE. ... to read ... of SPI
New file uploaded to lpc2000
2004-11-27 by lpc2000@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the lpc2000 group. File :
Re: P2 as output
2004-11-26 by lpc2100_fan
Hi, can t see the question in your posting but I assumed you wanted to know whether P2 can be used as output if you don t use an external memory interface. Yes
Re: Keil & wiggler for ARM
2004-11-26 by lpc2100_fan
Hi Bobi, Keil has a JTAG interface called Ulink. This can be ordered from Keil or with a LPC2100 evaluation board also from www.lpctools.com As far as I know
Re: read with SPI
2004-11-26 by domingos_bento
Hello, yes I tryed to change phase and polarity, but continue same. Another thing that happen is that AD to give the double of the scale. In the datasheet with
Re: LPC2130
2004-11-26 by R M
This is simply an amazing device. It has everything that I have been asking for in a micro (well I would have liked more RAM, ala the LPC2106). However the
Re: read with SPI
2004-11-26 by Gus
if your data is shifted by one bit that means you have the clock setup wrong. The easiest way is to scope CLK and SDO while you are sending 0x55 and then
Keil & wiggler for ARM
2004-11-26 by bobi catorski
Hi All Any one know if wiggler is working with Keil UV3 ARM tool ? Bobi ... Do you Yahoo!? Meet the all-new My Yahoo! – Try it today! [Non-text portions of
P2 as output
2004-11-26 by sifiland
As I know P2.0 - P2.31 as output use (LPC2294). I do not have EM.
Re: [lpc2000] read with SPI
2004-11-26 by FabioDB
Il giorno gio, 25-11-2004 alle 20:59 +0000, dasbento@aeiou.pt ha ... Have you tryed to change phase and polarity (CPOL and CPHA bits of SPI Control Register)?
Re: read with SPI
2004-11-26 by mahlerweb
Hi, I don t know about ADS7808, but i have done some work with MAX1271 and ADS8344, i think it similar. I think you started sampling every time by writing
read with SPI
2004-11-25 by dasbento@aeiou.pt
Hello, I m using SPI to read data of ADS7807U. My problem is not get to read the last bit, i.e, bit0. How does the SCK work? Anybody already work with this and
Re: [lpc2000] Re: Writing to FLASH from RAM
2004-11-24 by roucheux@aol.com
The fastest way is with spi FRAM like FM25L256 (up to 25 mhz clock) But in a lpc21xx if i m right, SPI is limited to clk/8 or 7.5 mhz for an internal freq of
Re: Writing to FLASH from RAM
2004-11-24 by firegenie1980
Thanks for all the suggestions, a little bit more information might help after reading some of the posts. I am reading in an 8-bit int into an array (10000
[lpc2000] Re: Writing to FLASH from RAM
2004-11-23 by roucheux@aol.com
RAMTRON have also SPI chips up to 25Mhz clock, unlimited endurance. I2C chip FM24CL64 is a 8k*8 chip in 8pin soic footprint unlimited endurance 1Mhz clock SPI
[lpc2000] Re: Writing to FLASH from RAM
2004-11-23 by roucheux@aol.com
IN my message i said read or write so reads must be counted. But new devices have unlimited endurance. FM3104...FM31256 are nonvolatiles, unlimited endurance,
Re: Uart FIFOs being disabled
2004-11-23 by Randy Ott
... seemingly ... receives ... fifos ... rid of. ... don t see ... and ... So ... mode you ... this ... commands ... Peter, You are correct that you read the
RE: [lpc2000] Re: Writing to FLASH from RAM
2004-11-23 by Raymond Keefe
Hi, The RAMTRON devices has 10^12 endurance but every READ is also included in that count. This can be an issue if you are regularly reading the device. On
Re: [lpc2000] Re: Writing to FLASH from RAM
2004-11-23 by roucheux@aol.com
The FRAM (RAMTRON) solution is very efficient, and the new chips have now unlimited read and write life duration. Previously they were limited to 10 billion
Re: [lpc2000] Re: Writing to FLASH from RAM
2004-11-23 by Robert Adsett
... Presumably he s not saving it all in a single byte :) So 100000/sec if he s storing 1000 readings works out to 0.1S and your endurance calcs are right.
Re: Writing to FLASH from RAM
2004-11-23 by Gus
ops I was thinking .1S... you mean .1mS!!! therefore (even if flash was fast enough. IT IS NOT) you will basically kill the chip in 10 seconds. How much data
Re: [lpc2000] Re: Writing to FLASH from RAM
2004-11-23 by Robert Adsett
... Well flash won t do it, too slow and as Gus pointed out it wears out too quickly. A couple of options - Don t store everything, either detect power down
Re: Writing to FLASH from RAM
2004-11-23 by firegenie1980
I take 10000 readings a seconds... therefore writing time for each int has to be ... after ...
Re: [lpc2000] Re: Any way to launch ISP ?
2004-11-23 by Sébastien MARION (UMM)
Hi, I testing this code with an half success : My program is in external flash (I use the LPC2210) and for writing in this flash I load by ISP command a Simple
Re: code for I2C in lpc2106 using Keil.
2004-11-23 by zpierre007
Yes, 2 of 4.7k, connected to +Vcc,