Re: [lpc2000] large code generation with vsprintf
2005-01-28 by 42Bastian Schick
... give vsiprintf a chance, it does not have floating point support. Also newlib can be tuned regarding these things. -- 42Bastian Schick
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Re: [lpc2000] Re: large code generation with vsprintf
2005-01-28 by Leon Heller
... From: gene_klein2000 To: Sent: Friday, January 28, 2005 1:15 PM Subject: [lpc2000] Re: large code
Re: large code generation with vsprintf
2005-01-28 by gene_klein2000
Leon, thanks for your answer. Can you point me in a direction for finding such routines which are useable for. Gene. ... function.
Re: [lpc2000] large code generation with vsprintf
2005-01-28 by Marko Pavlin
Use keil DKarm if you have budget for that. Optimization is better than using GCC.
Re: [lpc2000] large code generation with vsprintf
2005-01-28 by Leon Heller
... From: gene_klein2000 To: Sent: Friday, January 28, 2005 11:48 AM Subject: [lpc2000] large code
large code generation with vsprintf
2005-01-28 by gene_klein2000
Hi, I hope someone will help me with the next problem. When I m using vsprintf the code generated by th compiler grows with about 30kB. Can anyone explain what
Re: debugger for arm
2005-01-28 by lpc2100_fan
I can only confirm what Charles said. Within the ARM tool set you can get a simulator which is only a an instruction set simulator and there is the so called
Re: [lpc2000] debugger for arm
2005-01-28 by Charles Manning
I m not sure what you mean, but it sounds a bit like you want a simulator. gdb has a simulator built in. To run this type $ arm-elf-gdb xxx.elf (gdb) target
Re: [lpc2000] LPC2214 doesn't run if IODIR1 = 0x00010000
2005-01-27 by Robert Wood
Hi Dave, ... the Debug port. The processor seems to go back to some kind of altered state, since my simple program which blinks an LED on P2.29 doesn t run,
Re: [lpc2000] LPC2214 doesn't run if IODIR1 = 0x00010000
2005-01-27 by dave workman
Thanks, Robert: The problem occurs though I m not touching PINSEL2 or the Debug port. The processor seems to go back to some kind of altered state, since my
Re: [lpc2000] LPC2214 doesn't run if IODIR1 = 0x00010000
2005-01-27 by Robert Wood
I had very similar problems (I think) on the 2294. You have to be very careful how you set the PINSEL bits. I assume, when you say the processor doesn t run,
LPC2214 doesn't run if IODIR1 = 0x00010000
2005-01-27 by dave workman
I m running an LPC2214. I m using P2.29 as an output to flash an LED, so I know that the processor is exacuting my program. If I include a line to set P1.16 as
Re: LPC 2138 programmer - LINUX
2005-01-27 by lpc2100_fan
Needs some minor changes (did not do it myself yet) but the sector sizes are different between the LPC2138 and the LPC2129, otherwise it should work because
Re: LPC2138 Watchdog
2005-01-27 by lpc2100_fan
... Hi, using the watchdog with interrupt has two options, you use it as a periodic timer interrupt or for debugging, if it ever hits you know that your
Re: LPC2138 Watchdog
2005-01-27 by Rick Collins
... I think the idea is that you can either reset the chip, or you can use the interrupt. I don t know why you would use the interrupt instead of the reset,
LPC2138 Watchdog
2005-01-27 by tah2k
When enabled and timed out, the LPC2138 watchdog with generate an interrupt and may cause a reset depending on the state of WDMOD:WDRESET bit. I can see the
Re: [lpc2000] Re: complier stuff for LPC2138
2005-01-27 by Rod Moffitt
What library code are you referring to? If you mean newlib, my script builds newlib with all permutations, i.e. thumb mode with thumb inter-working, no thumb
Re: [lpc2000] Re: complier stuff for LPC2138
2005-01-27 by Anton Erasmus
... Hi, I used your script together with the source archives you have to build the tools. When I compile some code with the rsultant tools, I get warning
Re: [lpc2000] Re: LPC213x And Ethernet
2005-01-27 by Rod Moffitt
You forgot the reset line. Since it is active high on the CS8900A you will need to either have another GPIO or use an inverter to alter the RESET# signal that
Re: [lpc2000] Re: complier stuff for LPC2138
2005-01-27 by Rod Moffitt
No, it s not that hard to build the GNU tool-chain. I have a build script that will cost you a total of $0 available at: http://rod.info/arm.html Or you can
Re: [lpc2000] LPC 2138 programmer - LINUX
2005-01-27 by dasbento@aeiou.pt
Try lpc21isp. http://engelschall.com/~martin/lpc21xx/isp/ I m working with it at lpc2129 and work fine... Domingos ...
Re: [lpc2000] Re: Strange ISP Problem
2005-01-27 by Robert Adsett
... Or http://www.aeolusdevelopment.com/Articles/InSystemProgramming.html ;) (see hookup schematics on the bottom of the page) and on the ARM microcontroller
LPC 2138 programmer - LINUX
2005-01-27 by Sara Fonseca
Hi, I am looking for a LPC2138 serial programmer based on Linux. Do you know about anyone?
Re: [lpc2000] Re: Strange ISP Problem
2005-01-27 by Aalt Lokhorst
Hello Reggie, See http://www.keil.com/mcb2100/mcb2100-schematics.pdf for an example how you can take advantage of the DTR and RTS lines when you are using the
Re: [lpc2000] Best solution for multiMCU comm
2005-01-27 by Leon Heller
... From: Robert Adsett To: Sent: Thursday, January 27, 2005 5:13 AM Subject: Re: [lpc2000]
Re: [lpc2000] Re: LPC213x And Ethernet
2005-01-27 by 42Bastian Schick
... The 91C111 works with 10/100 MB but has 16 registers, i.e. 1 port more. OTOH, the cs8900 provides a memory-mapped interface which makes it more suitable
Re: Strange ISP Problem
2005-01-27 by Nice Guy
Your exactly right. I figured this out late last night with a scope. When using hyperterminal DTR or RTS was asserted at all times, this gave power to my
Re: [lpc2000] Best solution for multiMCU comm
2005-01-27 by Robert Adsett
... And what I didn t point out, uses a UART. Robert Freedom has no meaning of itself. There are always restrictions, be they legal, genetic, or physical.
Re: [lpc2000] Best solution for multiMCU comm
2005-01-27 by Robert Adsett
... You can do 9 bit on a 16550 (at least a real one) using a technique I ve seen referred to as parity modulation. The ideas is to use 8 bit with mark or
Re: [lpc2000] Best solution for multiMCU comm
2005-01-27 by Peter Jakacki
I have to say that the UART solution is the easiest and the best although it s a pity that Philips implemented a PC style UART on the ARM (no 9-bit mode). But
Re: Anybody have timings for cos() and sqrt() on LPCx etc.?
2005-01-27 by embeddedjanitor
Mileage will vary depending oon compiler, memory map etc. I use gcc and I did some benchmarks a while ago (over a year back) using an old version of gcc
Re: Best solution for multiMCU comm
2005-01-27 by embeddedjanitor
... single ... used ... that. I ... (more ... slaves ... transfer ... master ... If you had CAN controllers on your devices then I d say use that. You don t
RE: [lpc2000] Re: LPC213x And Ethernet
2005-01-27 by Lasse Madsen
One thing that come into my mind when hearing some of you suggest using an FPGA to do some kind of serial to parallel interface is Are you mad!? If the
debugger for arm
2005-01-27 by dasbento@aeiou.pt
Hi, Someone knows a debugger for the code compiled in gcc for lpc2129 for linux. I liked a debugger that the arm is emulated for not being necessary JTAG.
LPC2106 Power UP Sequence
2005-01-26 by Milos Prokic
Hi, I fabricated a board with LPC2106 on it (among other things) with this fancy power supply from TI - TPS70851. Small package, single chip 3.3 and 1.8V
Re: Best solution for multiMCU comm
2005-01-26 by donhamilton2002
... master ... Unless you have a very large board (
[lpc2000] Best solution for multiMCU comm
2005-01-26 by Marko Pavlin (home)
Hello! I would like to connect several P89LPC932 (x51 core) slaves to single LPC2xxx master. Each slave has unused SPI and UART, which can be used for this
Re: [lpc2000] Re: LPC213x And Ethernet
2005-01-26 by Markus Meng
Maybe, microchip makes an integrated MAC/PHY with an SPI interface. I forgot the name of this new device. Samples are available.. Markus ... -- Mit
Re: [lpc2000] Re: LPC213x And Ethernet
2005-01-26 by Marko Pavlin (home)
... Bitbanging with CS8900A require 14 lines: 8 data, 4 address and 2 for IOR/IOW. I will have PCB in a week or so and I will post complete project here.
Re: [lpc2000] Re: LPC2129 IAP Questions
2005-01-26 by Robert Adsett
... Assembly. The file is interrupt_sup.s That is the standard file extension for an assembly source file for use by gcc. ... When you say it doesn t work,
Re: Texas Instruments have TMS470 datasheets on their web now
2005-01-26 by Rick Collins
Boy, I sure seem to be good at making mistakes. Just to make it clear, the group I started is for the TMS470 ARM parts, not the TMS430 part. The link is
Re: LPC2129 IAP Questions
2005-01-26 by firegenie1980
I have added all the required links and definitions, however I seem to be missing the actual code for the enable and disable routines. Does anyone know where
Re: Texas Instruments have TMS470 datasheets on their web now
2005-01-26 by tsvetanusunov
... TI ... to ... samples ... selling ... it ... on board is with TMS470R1A256 the only difference with 128 is that it have more memory so this is why they say
Re: Texas Instruments have TMS470 datasheets on their web now
2005-01-26 by Rick Collins
I think this is a very interesting development. I have been asking TI about their ARM CPUs for a couple of years. Since they are willing to sell their parts
Re: LPC213x And Ethernet
2005-01-26 by Rick Collins
... there s ... I am looking at doing something very similar with the AT91SAM7S chips. Like the LPC312x parts, there is no external data bus. I think this is
Re: Port maximum current
2005-01-26 by extra300_it
Thank you Peter for your answer. We re used to worst-case-dimensioning, that s why I was interested into that data (that you can often find on other micros
Anybody have timings for cos() and sqrt() on LPCx etc.?
2005-01-26 by tonalbuilder2002
I m starting design work on a robotics controller that requires lots of floating point cos(), sin(), and sqrt(). I use 16 bit Freescale MC9S12 processors in
Enabling Flash Code Protection
2005-01-26 by Hugh O'Keeffe
Hi, I want to initialise a memory location (0x1FC) to a specific value (0x87654321) in my program image (i.e. enable LPC flash protection). Can someone remind
Pulse Width Modulator
2005-01-26 by teunvandeberg
Hello, I m trying to use PWM 5 on a LPC2292. How can I select which timer is used for the PWM. Can someone give some example code? I can t get any output on
Re: [lpc2000] Port maximum current
2005-01-26 by Peter Jakacki
The terms Iol and Ioh are given as 4ma when refering to Voh and Vol logic levels respectively. This simply means the minimum guaranteed current that the pin