Re: Cortex M3

Started by paulkimelman in LPC200011 years ago

--- In l...@yahoogroups.com, "lpc2100_fan" wrote: > > Hi Paul, > > just wanted to let you know that I and probably many more people...

--- In l...@yahoogroups.com, "lpc2100_fan" wrote: > > Hi Paul, > > just wanted to let you know that I and probably many more people in > this forum really appreciate your participation and clarifications. Thank you. Glad to help. > To recap this execution out of RAM topic, an M3 based device is more > dependent on the flash performance than an ARM7 based device beca


Help me find LPC2000 programmers

Started by Russ Lindgren in LPC200015 years ago 20 replies

Leon Thanks ! I've taken good advantage of your www.lpc2100.com site to find development bds. I was first alerted to this...

Leon Thanks ! I've taken good advantage of your www.lpc2100.com site to find development bds. I was first alerted to this ARM7 derivative via CC ink. (PS if you have a circuit cellar subscription you can see this month my Coolrunner-II xilinx article...) I n


Surface Mount Navigation Switch (Sparkfun COM-08236)

Started by Kevin Townsend in LPC200010 years ago 19 replies

I was wondering if anyone has used this product, or can offer a few lines of code to point me in the right direction? I am just learning ARM7...

I was wondering if anyone has used this product, or can offer a few lines of code to point me in the right direction? I am just learning ARM7 development, and can get the LEDs blinking, etc. (thanks to this group), but am not sure how to read the state of the button to know if it is up, down, or pressed. Do I simply attach outputs 1 and 2 (labelled on breakout board) to GPIO and read s...


Trace device recommendation?

Started by foreigner_ca in LPC200012 years ago

Does anyone have an opinion on the who has the best AND most cost effective JTAG/ETM trace debug options? IAR, Hitex, others? I have not...

Does anyone have an opinion on the who has the best AND most cost effective JTAG/ETM trace debug options? IAR, Hitex, others? I have not purchased any tools yet so it's wide open for me. I'd like to get AN ide/debug environment that can be used with both ARM7 (LPC2138) and ARM9 (ST912FW44). Thanks in advance Dave ------------------------ Yahoo! Groups Sponsor --------------------~...


STR730 problem sorry to ask in LPC2000 group....

Started by nimster6969 in LPC200010 years ago 2 replies

Well first of all sorry to post this here but already tried to find my answer in all the web and wasn't able, I've started programming on ARM7...

Well first of all sorry to post this here but already tried to find my answer in all the web and wasn't able, I've started programming on ARM7 with an LPC2103 but now in my work they gave me and STR730 from IAR my problem is that I cant do a simple program with this, most of the programs have complicated libs and since I'm using Rowley CrossWorks for quite some time dont want to change progra...


GCC/gnude can't use libc.a?

Started by Mike Pijl in LPC20005 years ago 13 replies

I can't quite believe i'm having this problem! i'm a professional software/hardware developer but not in the GCC/Arm world. I'm a real newbie...

I can't quite believe i'm having this problem! i'm a professional software/hardware developer but not in the GCC/Arm world. I'm a real newbie in GCC but have C experience on other platforms. I'm so stuck...but I suspect it must be something very simple. I have a very basic GCC program that can't access any of the standard functions. I'm targeting a philips LPC2129 ARM7 processor. I ri...


ARM7 Code: Variable declaration "int" better than "short" or "char"

Started by samiehg in LPC200011 years ago 5 replies

Hi We are using LPC2378. All firmware is written in C language. I have read up in a manual that when declaring variables, the compiler can do...

Hi We are using LPC2378. All firmware is written in C language. I have read up in a manual that when declaring variables, the compiler can do better optimization if the vars were declared as int or long, as opposed to short or char. Could anyone please explain why this could be? Thanks Samie


Re: BDI2000 Flash Load Issue

Started by sbechtho in LPC200013 years ago 2 replies

Is there a way to get this signature at 0x00000014 via BDI2000, i.e. with help of some script or anything else ? Sascha --- In...

Is there a way to get this signature at 0x00000014 via BDI2000, i.e. with help of some script or anything else ? Sascha --- In lpc2000@lpc2..., Marko Pavlin wrote: > There's signature at 0x00000014. > > c/p: > This signature is a word-wide number that is stored in the unused > location in the ARM7 v


PS/2 Mouse

Started by mal_ibn in LPC200013 years ago 4 replies

Hi, did anyone already connect a PS/2 mouse or trackball to an ARM7? Has anyone a description what to do after applying Vcc/GND to the...

Hi, did anyone already connect a PS/2 mouse or trackball to an ARM7? Has anyone a description what to do after applying Vcc/GND to the mouse? Does the mouse produce the clock or does ARM has to poll the mouse? I have a description of what bit carries which info (regarding the three bytes of standard PS2 protocol) but my mice do not send any data of


simulator

Started by G B in LPC200013 years ago 8 replies

I, too, as a guy new to the ARM7, would find it helpful to 'simulate' code well before putting it on hardware. I have the gnuarm and eclipse...

I, too, as a guy new to the ARM7, would find it helpful to 'simulate' code well before putting it on hardware. I have the gnuarm and eclipse with the Olimex board and wiggler. But, I have found that after many many years writing assembly code (AVR now), that the simulator is invaluable in new, tricky, routines. On another subject... What jtag and IDE for less than $3000 gives me the abili


Anyone run linux and/or python on an LPC or other ARM7/9 variant?

Started by paloalgodon in LPC200010 years ago 6 replies

I'm being tasked with creating the hardware for a flexible, and most importantly *completely undefined* (!!) test system. Now, I know...

I'm being tasked with creating the hardware for a flexible, and most importantly *completely undefined* (!!) test system. Now, I know it's going to get re-spun several times when things actually do get defined, but this is the way the customer wants to run it, so be it. I was thinking that running a scripting language on the thing would be a good starting point, so of course, Linux and/or ...


Programming problem.

Started by allanbr08 in LPC20007 years ago 9 replies

Hello, I'm using an ARM7 LPC2138 series and I'm having some troubles here. When I try to programing using Flash Magic Tool version 5.84.2259 I...

Hello, I'm using an ARM7 LPC2138 series and I'm having some troubles here. When I try to programing using Flash Magic Tool version 5.84.2259 I receive the following message: 'Operation Failed. Failed to autobaud - step 1.' I've already checked pin 0.14 and it's connected to pull-down so its in low when I press the reset buttom. Im using a 20.00Mhz oscillator and I've also checked it and ...


Re: LPC2106 reset circuit

Started by Nick Alexeev in LPC200010 years ago

Do we need to monitor the core voltage too? The reference designs that I saw show reset supervisor only on the peripheral voltage. Is there...

Do we need to monitor the core voltage too? The reference designs that I saw show reset supervisor only on the peripheral voltage. Is there a good application note about reset supervising for ARM7? Sorry for the novice questions. I'm designing my first ARM board. It's a CAN bus logger built with LPC2129. - Nick ------------------------------------


ANNOUNCEMENT NEW ARM7 BOARD

Started by Business webmaster in LPC200015 years ago 5 replies

http://arm.web7days.com regards, EZarm

http://arm.web7days.com regards, EZarm


availability of LPC2400 series

Started by pintvin in LPC200011 years ago 16 replies

I want to know the availability of LPC2400 series of ARM7 This series does not feature in the latest NXP website.What does this mean?Could...

I want to know the availability of LPC2400 series of ARM7 This series does not feature in the latest NXP website.What does this mean?Could anyone please verify this.Thanx in anticipation.


Choosing a Cortex-M3 processor

Started by jsstoezel in LPC20009 years ago 13 replies

Hi, I've been following this mailing for a while now and I believe it's a good source of information for the ARM7 and the cortex-M3...

Hi, I've been following this mailing for a while now and I believe it's a good source of information for the ARM7 and the cortex-M3 architectures in general (even if it's mainy targeted to the LPC2000 family). I have been using LPC2000 devices for a while now, and I am considering switching to the Cortex M3 family for my next design. I have been looking around for several Cortex M3 famili...


Re: ARM7 CPU Tests, Instruction Tests(ARM &/or THUMB) & Register Tests Wa

Started by Paul Curtis in LPC200011 years ago 2 replies

Hi, > Interesting conversation. My 2c. > > I have been told by high authority :o) that multiple versions of > dissimilar > software...

Hi, > Interesting conversation. My 2c. > > I have been told by high authority :o) that multiple versions of > dissimilar > software was written into the DO-178B spec for political reasons. > People > have used it, and it is not discouraged as such, however you gain > little or > even no certification credit from its use so it is a big money pit. As > you > rightly say it does not g


ARM7, Cortex-M3 and Cortex-M0

Started by "M. Manca" in LPC200010 years ago 2 replies

Hi friends, I am planning to work with LPC1768 instead LPC2368 so I searched some documentation but i find only appor datasheet. I have some...

Hi friends, I am planning to work with LPC1768 instead LPC2368 so I searched some documentation but i find only appor datasheet. I have some questions to verify if I understand well: 1. Cortex-M3 is an harvard cpu type but ram and flash memories area as different so there is no need to write specific C function to deal with the different architecture (means that I can use standard library f...


RTOS selection help

Started by Nishant Agrawal in LPC200010 years ago 18 replies

Hello All, I am searching from a suitable open source OS for ARM7 controllers. I looked into a number of them; contiki, pico...

Hello All, I am searching from a suitable open source OS for ARM7 controllers. I looked into a number of them; contiki, pico OS and FreeRTOS. I think FreeRTOS is the best among all these. One important reason for me to choose FreeRTOS is that it has an active forum which I did not find for pico OS otherwise that too could have been a good choice. Contiki on the other hand, ...


LPC2xxx eCOS port

Started by Hugh O'Keeffe in LPC200015 years ago 6 replies

Hi, Anyone on the group done any work on this ? I know that eCOS is available for ARM7, however, I'm guessing that it will need...

Hi, Anyone on the group done any work on this ? I know that eCOS is available for ARM7, however, I'm guessing that it will need specific device drivers for LPC2xxx peripherals such as UARTS, VIC and Flash ? Any feedback appreciated Hugh @