uCos and serial comm
2004-09-29 by ggindele
Hello, Is there an example how to do the interrupt driven serial comm right under uCos? (even better if all this is for LPC2000) Cheers, Gabe
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Re: LPC2106 interfacing with FT232BM USB chip questions
2004-09-29 by Gus
You can use TX and RX only but you want to watch out for UART speed as FT232 can run really fast. It would be a lot better if you use handshaking lines CTS and
Re: Newbie: Ethernut Port
2004-09-29 by ldavies1971
... Hi Lasse ... already ... Ah.. Sorry I meant the LPC2114, I was also considering the LPC2214 to allow for future larger memory requirements. Thanks, Lee
RE: [lpc2000] Newbie: Ethernut Port
2004-09-29 by Lasse Madsen
Hi Lee... ... Not me, But I don t think there s a device called LPC2116!? You should consider an external memory map processor LPC22xx when interfacing to
Newbie: Ethernut Port
2004-09-29 by ldavies1971
Hello, I m a newbie to this newsgroup and the LPC21xx. I plan to port the Ethernut (www.ethernut.de) OS/stack to the LPC2116. Before I start I was wondering
AtoD pins
2004-09-29 by douglasbolton
Hello I m having problems getting correct readings on the AtoD pins. I have 3 inputs which I m converting individually under software control. I drive one pin
Re: [lpc2000] LPC performance and Clock frecuency
2004-09-29 by Jean-Rene David
... Aside from the baud rate, there is another difference between selecting a 10MHz and 20MHz crystal; a reason very specific to the LPC2000 parts that have an
RTC manipulation
2004-09-28 by Leighton Rowe
I noticed that the lpc real time clocks doesn t really have any registers available for counting time intervals below 1 sec. Is it possible to do this with the
Re: [lpc2000] Re: LPC performance and Clock frecuency
2004-09-28 by Micron Engineering
Yes this is right and common to every microcontrollers sold in the world, so it is not a problem to solve but simply to deal with it. You have no chance to
Re: [lpc2000] Re: LPC performance and Clock frecuency
2004-09-28 by Jens Hildebrandt
Right, but when you have to use the same clock for your timer you have to deal with odd counter intervalls (e.g. 67.8ns with 14,7456MHz). So you have to decide
Re: [lpc2000] Re: LPC performance and Clock frecuency
2004-09-28 by Jens Hildebrandt
Right, but when you have to use the same clock for your timer you have to deal with odd counter intervalls (e.g. 67.8ns with 14,7456MHz). So you have to decide
Re: [lpc2000] Re: LPC performance and Clock frecuency
2004-09-28 by Micron Engineering
This problem is common to every microcontroller, it is not new; if baud rate error is important you have to choose the correct crystaland this is not difficult
Re: [lpc2000] Re: LPC performance and Clock frecuency
2004-09-28 by Bill Knight
If the frequencies are exact, a 20MHz crystal should have an error of about 0.16% for common BAUD rates. A 14.7456MHz crystal should have an error of 0.00%.
Re: LPC performance and Clock frecuency
2004-09-28 by acetoel
Thanks I noticed that today when looking at the Baud Rate error. With 20Mhz is near 0.12% and with 14.xx is near 0.02%. It s quite a difference and 1 Mhz in
Re: [lpc2000] LPC performance and Clock frecuency
2004-09-28 by Leon Heller
... From: acetoel To: Sent: Tuesday, September 28, 2004 12:03 PM Subject: [lpc2000] LPC performance and
LPC performance and Clock frecuency
2004-09-28 by acetoel
Hello... I have seen boards with 10MHz, 14.xxxMhz and 20Mhz. All with the PLL set so the chip runs at 60Mhz more or less... But really, is there any difference
LPC2106 interfacing with FT232BM USB chip questions
2004-09-28 by Curt Powell
We ve interfaced the FTDI FT245BM chip with the LPC2106 before (a nice USB solution) but a new project doesn t allow us the 12 GPIO pins required by the
Re: JTAG problems with Olimex LPC2106
2004-09-27 by lynchzilla
Buried in the Macraigor web site s FAQ is the following important advice: What mode must my parallel port be in? As far as the parallel port is concerned, a
Re: FAT file system
2004-09-27 by Gus
Hello, The system has a lot of buffering going on for the file system work. Old firmware did write every time you call fputchar() This makes the system better
RE: [lpc2000] Re: FAT file system
2004-09-27 by Lasse Madsen
Hi Gus Does your file system write a packet at a time (512 bytes) or do you write along the way for instance For ( x = 0 ; x
Re: JTAG problems with Olimex LPC2106
2004-09-27 by tsvetanusunov
... there should be no reason ARM-JTAG/Wiggler to work on one and not work on other board, it may be something with your software settings if there are any.
Re: FAT file system
2004-09-27 by Gus
That is funny! I never posted the website :-) www.ghielectronics.com By the way ALFAT is doing 70KB/S now! We also added 256 FIFO to UART and SPI ... embedded
Re: [lpc2000] LPC2214 boards
2004-09-27 by Bill Knight
If I remember correctly there is only 1 JTAG port on the 2214 and (I know) that enabling it does not necessarily enable the trace port. Regards -Bill Knight
RE: [lpc2000] LPC2214 boards
2004-09-27 by Bill Knight
Plano TX - a not-so-small (~250K) suburb just north of Dallas. -Bill On Mon, 27 Sep 2004 07:46:58 -0700, Curt Powell wrote: Thanks, Bill We ve seen that one
Re: [lpc2000] JTAG problems with Olimex LPC2106
2004-09-27 by Leon Heller
... From: dave_albert To: Sent: Monday, September 27, 2004 3:14 PM Subject: [lpc2000] JTAG problems with
Re: [lpc2000] LPC2214 boards
2004-09-27 by Micron Engineering
Bill I am designing with a LPC2214 and in one o 2 group email I read that JTAG port 1 if enabled also enables the trace pins on the mcu and then could be
RE: [lpc2000] LPC2214 boards
2004-09-27 by Curt Powell
Thanks, Bill We ve seen that one already. It s got a lot more than we need but it certainly is a fallback. BTW, where are you located? Curt ... From: Bill
Re: [lpc2000] LPC2214 boards
2004-09-27 by Bill Knight
It s a little more than you are requesting but you may want to check out the LPC-SBC2 at http://www.theARMPatch.com. Regards -Bill Knight theARMPatch On Mon,
LPC2214 boards
2004-09-27 by Curt Powell
Does anyone have any recommendations for 2214 header boards? We re looking for fully assembled and tested with at least 1M RAM. (We ve had good luck with
JTAG problems with Olimex LPC2106
2004-09-27 by dave_albert
I m having trouble getting my JTAG Wiggler to work with an Olimex LPC-P1 (2106 based prototype board). It works fine with my Olimex LPC2124 based prototype
SPI problems
2004-09-27 by johnnorgaard2003
Hi I use SPI interface with lpc2106. I have setup the SPI and load the dataregister. After that I can see SPSR is 0x80 and SPINT is 0x01. It ok. But when the
IAP command problems
2004-09-27 by koerner_stefan
Could anyone help me to run the IAP commands on KEIL MCB2100 (LPC2129)? I am working with the ARM RVDS tools (& RV ICE) and tried to run a small sample calling
Small correction
2004-09-27 by Konstantin V. Novick
GCC doesn t use the single entry-point for interrupts, but the led example does. -- Óñïåõîâ! Êîíñòàíòèí aka cd_racer [Non-text portions of
Re: ML67Q5 series - pros and cons?
2004-09-27 by tsvetanusunov
... LPC2124 ... it ... LPC2124 and ML67Q5003 are almost identical as characteristics and peripherials, core clock, temp range etc. OKI have a number of
$$$ and quick start
2004-09-26 by Jan Szymanski
... To start with you don t even need to spend any mooney, but you need to invest your time and effort (and time is money too). With very little investment it
RE: [lpc2000] ML67Q5 series - pros and cons?
2004-09-26 by Paul Curtis
Do bugs go bang? ;-)
ML67Q5 series - pros and cons?
2004-09-26 by ggindele
I m trying to pick the right ARM chip and went from LPC2106 to LPC2124 because of the code protect issue. Now I m looking at the OKI ML67Q5003, there s only a
LPC2106 Known Problems
2004-09-26 by acetoel
Hello I m a student of Electronic Engineering in Argentina. And I m migrating from AVR to ARM. As I have to make an investement (The Dolar si too expensive,
Re: [gnu arm] interrupts don't work :/ [Another way]
2004-09-26 by cd_racer2
You can do the following: MEMMAP = MEMMAP_USERRAMMODE; *(volatile INT32U *)(0x00000018L) = 0xE51FFFF0L; (MEMMAP - see page 33 of UM_LPC2106_2105_2104 - user
Re: LPC2114 dev board?
2004-09-26 by tsvetanusunov
... we have LPC-H2124 and LPC-P2124 boards on our web www.olimex.com/dev Best regards Tsvetan ... PCB prototypes for $26 at http://run.to/pcb
Re: Constructors
2004-09-25 by dave_albert
Note that you will also need to modify your linker script. Mine has the following immediately after the .text segment: /* Build table of global constructors
IAR - AARRGGH!
2004-09-25 by itsjustimpossible
Hi I am using IAR, J-Link and LPC2129. I am running from FLASH with the PLL and MAM enabled. The board is the KEIL eval board, but with a MAXIM reset device
Re: FAT file system
2004-09-24 by Pete
Hi Gus Actually having fat32 is OK, its just that for our particular embedded application we will NEVER exceed something like 100Mbyte. If my understanding is
Re: [lpc2000] [gnu arm] interrupts don't work :/
2004-09-24 by Anton Erasmus
... [Stuff snipped] I believe this has been fixed in the newer versions of GCC. Regards Anton Erasmus ... -- A J Erasmus
LPC2114 dev board?
2004-09-24 by ggindele
I wonder if there are other then the AFLAT dev boards uot there for the LPC211x 64 pin series? Thanks, Gabe
Re: [lpc2000] [gnu arm] interrupts don't work :/
2004-09-24 by Konstantin V. Novick
As far as I know, attribute interrupt in GCC works incorrect. It s better to use an assembler container, for example: .extern My_C_ISR_Func .global ISR_Func
Re: [lpc2000] Re: FAT file system ==>warning
2004-09-24 by Alaric Snell-Pym
... It applies for both - whenever the system comes up, the filesystem state (data and structures) is at it was when the last successful commit() call
Re: FAT file system ==>warning
2004-09-24 by Gus
Hi, Maybe it would be better for the file system structures but the data that was about to go on the media when the power failure happened is lost! The idea of
Re: [lpc2000] Re: FAT file system ==>warning
2004-09-24 by Alaric Snell-Pym
... There are file system layouts that avoid that problem - transactional ones, for example, tend to have a commit operation. If the power fails before you
Re: FAT file system ==>warning
2004-09-24 by Gus
Hi, ALFAT chip does save both FAT tables (if media is formatted with 2 tables) so if one got corrupted the second will be fine. I can t see how FAT can be a