Arm7 or PC104 or something else

Started by Robert Gush in comp.arch.embedded15 years ago 3 replies

Hi, We have to tackle a new job that is going to use VOIP. I am wondering whether the ARM7 series from Philips would be up to the job or if...

Hi, We have to tackle a new job that is going to use VOIP. I am wondering whether the ARM7 series from Philips would be up to the job or if it would be better to go the PC-104 route. The plus points on a PC-104 system are: a) Ethernet interface b) OS such as linux available c) Mass storage (Comapct Flash etc) available The plus points for the ARM: a) A lot of fun writing the code....


Speed/power tradeoff in ARMs

Started by rickman in comp.arch.embedded13 years ago 2 replies

I am looking a a project for a portable device, not a lot different from a PDA in terms of design. I would like to compare some of the ARM9...

I am looking a a project for a portable device, not a lot different from a PDA in terms of design. I would like to compare some of the ARM9 processors for performance vs. battery life to see just how much horsepower is compatible with a moderate battery size. I see that Atmel and Philips have new parts out. The new TI parts don't look like they are optimized for power and I don't think the...


When to go for an evaluation board and when not to...

Started by Seemanta Dutta in comp.arch.embedded14 years ago 6 replies

Hi, I have a question about two options between which I am having a dilemma. I have to start of with 8051 development and basically my need...

Hi, I have a question about two options between which I am having a dilemma. I have to start of with 8051 development and basically my need to create small hobby projects. So now, I am the crossroads where I have to choose between two options: 1. Purchase a development board. 2. Use the philips/atmel variant with in built boot loader and start off development with a home made ki...


ARM 7 - your comments please!

Started by ARM7 in comp.arch.embedded14 years ago 4 replies

Hi group, I am new to ARM7 microcontrollers and would like to hear from experienced people what they recommend. I saw that the Philips ones...

Hi group, I am new to ARM7 microcontrollers and would like to hear from experienced people what they recommend. I saw that the Philips ones are pretty popular but ST have a built-in 1.8V regulator. What chip would you recommend? Are there any ARM7 with more than 64KB Ram and 1MB Flash? I am not very keen in soldering - in fact I would prefer a ready made and pretty small board with a chip...


WinCE 2.0 timebase (dispatcher?) question

Started by msg in comp.arch.embedded12 years ago 1 reply

Greetings, I apologize for my ignorance regarding the architecture of Windows CE 2.0 but hope that my question has a short list of likely...

Greetings, I apologize for my ignorance regarding the architecture of Windows CE 2.0 but hope that my question has a short list of likely answers. I have a WinCE 2.0 device (just acquired -- Philips VELO 500 HPC) which I would like to use as a portable data terminal and GPS display among other field data collection possibilities, which won't accept keystrokes or do screen draws without...


firewire < > digital audio

Started by martin griffith in comp.arch.embedded14 years ago 2 replies

Just looking for some generic for firewire hardware to and from multichannel digital audio, preferably off the shelf. 48K 24 bit stuff. Been to...

Just looking for some generic for firewire hardware to and from multichannel digital audio, preferably off the shelf. 48K 24 bit stuff. Been to TI.com, nothing obvious, I gave up on philips,, google had alot of irrelevant stuff. I'm just working on a concept, and I'm trying to find out how bad/easy it is! It's just an idea for getting audio in and out of a PC to my POS, so a few pointe...


74LVT transition times: How low can you go?

Started by Joerg in comp.arch.embedded13 years ago 74 replies

Specsmanship seems to be on the decline. Philips/NXP is usually top notch but the family guide for their LVT series is, gasp, three pages...

Specsmanship seems to be on the decline. Philips/NXP is usually top notch but the family guide for their LVT series is, gasp, three pages short. Information about maximum transition times on inputs: Zilch. In an embedded application I need to slow down the /OE of a 74LVT244 so it turns tri-state fast but goes onto the bus slower, to avoid a brief contention when addresses change. Is it ...


Hard to clone Micros.

Started by Unbeliever in comp.arch.embedded15 years ago 3 replies

I need a hard to clone Micro. I'd appreciate any input from the illuminati that inhabit this corner of cyberspace. I am aware that PICs with...

I need a hard to clone Micro. I'd appreciate any input from the illuminati that inhabit this corner of cyberspace. I am aware that PICs with the security fuses blown are very easy to clone using invasive techniques. I have seen websitest that offer to "recover lost code" from AVRs, Philips 8051's and others. Do any of you guys have any experience in what's easy and what's hard to read a...


ARM 2106 GnuCC problem question How do you compile a program for it.

Started by Earl Bollinger in comp.arch.embedded16 years ago 4 replies

I have a ARM2106 PCB and the chip is talking with the Philips Serial Port ISP program OK. I have installed the Cygnus GnuCC compiler onto my PC....

I have a ARM2106 PCB and the chip is talking with the Philips Serial Port ISP program OK. I have installed the Cygnus GnuCC compiler onto my PC. It has the Arm tools, files and stuff too. Does anyone know what the command line commands might be to get it to compile and Link a small simple C program? I am just trying to see if I can get it to do something. There are a couple of example C p...


playing with ARM and MPC55

Started by blisca in comp.arch.embedded12 years ago

Hi i had some surplus mounting the following microcontrollers ARM family: SAMSUNG S3C4510B01 SAMSUNG S3C2410AL ST ARM9...

Hi i had some surplus mounting the following microcontrollers ARM family: SAMSUNG S3C4510B01 SAMSUNG S3C2410AL ST ARM9 MTC-20156TQ PHILIPS ARM VT22152 POWERPc family MPC555(more than 20 pcs) i would like to know the easiest and inexpensive way to compile and debug with one of this 32 bit microcontrollers thank you for any hint or suggested link Diego ,Milan,I...


Code for PS/2 mouse for DS80C400

Started by Fred in comp.arch.embedded15 years ago 5 replies

Whilst I can still get serial mice I feel their days are numbered moreso than PS/2 mice which presumable will also eventually become obsolete for...

Whilst I can still get serial mice I feel their days are numbered moreso than PS/2 mice which presumable will also eventually become obsolete for USB mice. I have trawled for 8051 code for the PS/2 mouse and only found one instance which is in assembler and not for the assembler bundled with the SDCC compiler. There were some hints that there might be code on the Philips website but I can...


LPC2114 power consumption problems

Started by Anonymous in comp.arch.embedded14 years ago 4 replies

Hi, I have design using Philips LPC2114 processor. Its battery driven so minimal power consumption is essential. Problem is that even with...

Hi, I have design using Philips LPC2114 processor. Its battery driven so minimal power consumption is essential. Problem is that even with cpu power down the circuit still uses about 2-3mA. :I I have measured that almost 2mA goes to CPU so something there is not right. I've read erratas and application notes and lots of other stuff and done the things they suggest to get power consumpt...


8051 and SCC2692 uart

Started by Folkert van Heusden in comp.arch.embedded13 years ago 5 replies

Hi, My boss gave me an embedded device with a 8051 processor coupled to a SCC2692 (by Philips) uart and the Keil c compiler. Now I was...

Hi, My boss gave me an embedded device with a 8051 processor coupled to a SCC2692 (by Philips) uart and the Keil c compiler. Now I was ordered to develop some kind of pc-interface. The problem now is: I have absolutely now idea how to access this SCC2692 uart. I have documentation the chip, but how am I supposed to fiddle with it? Is it memory mapped? Does the 8051 have special io-ins...


Philips 1161 Controller and Bulk Transfers

Started by prune in comp.arch.embedded13 years ago

Hi, I am working on a prototype with the above controller in device mode. I have no problem transferring packets smaller than 64Bytes; but I...

Hi, I am working on a prototype with the above controller in device mode. I have no problem transferring packets smaller than 64Bytes; but I am having trouble with packets larger than 64 bytes, the size of the end point FIFO buffer. Currently I simply chop up the data I want to send in 64 byte chunks + any remaining bytes and then send them out by writing to the endpoint and then valida...


eCos and ucOS memory footprint

Started by Ozone Hole near South Pole in comp.arch.embedded16 years ago 3 replies

Hi, I am thinking about putting either eCos or ucOS into the just released Philips ARM7 LPC21xx chip. It has something like 16kB of RAM,...

Hi, I am thinking about putting either eCos or ucOS into the just released Philips ARM7 LPC21xx chip. It has something like 16kB of RAM, 128kB (or 256kB depending on the part) of FLASH on-chip, with no external memory bus. Before going ahead, I would like to have a sanity check: can the porting of eCos or ucOS be done with the resources? It aims to be my hobby project. Just want to try...


I2C port IO chips

Started by Ralph Malph in comp.arch.embedded16 years ago 17 replies

I looked around the web and could not find any sources of I2C port IO chips other than Philips. Seems to get most of their I2C parts, you have...

I looked around the web and could not find any sources of I2C port IO chips other than Philips. Seems to get most of their I2C parts, you have to buy a couple thousand minimum. I am looking for a way to add 8 or 16 IOs. Some chips are port expanders, some are LED drivers; either will work if they come in small packages. So who else makes I2C chips? A google search turned up lots of st...


ARM7TDMI -- Jtag debugger...

Started by Mike V. in comp.arch.embedded16 years ago 7 replies

I'm interested in purchasing a demo board for an ARM7TDMI-based microcontroller (a Philips LPC2129 to be exact.) That's fine with me, it only...

I'm interested in purchasing a demo board for an ARM7TDMI-based microcontroller (a Philips LPC2129 to be exact.) That's fine with me, it only costs ~$150. I want be able to debug it with a JTAG debugger, so ~$300 debuggers by Keil and/or Nohau come to mind. Salespeople tell me that I can't just stick the Jtag onto the demo board, but that I would also need to buy their full $2000+ develo...


P89C51RD2 replace P80C31

Started by Wu in comp.arch.embedded16 years ago 5 replies

Hi all, my company has a old product which use intel's p80c31, now my boss ask me to try to use philips'p89c51rd2 to replace the p80c31, so...

Hi all, my company has a old product which use intel's p80c31, now my boss ask me to try to use philips'p89c51rd2 to replace the p80c31, so we can save the ST m27c512 on which program runs. I thinked the p89c51rd2 is 100% compatiable to p80c31, so I just burned the program into on-chip FLASH, and connectted the !EA to vcc, and power on, but the program seems not running. Strange I think...


Simple Autoexposure algorithm for an Image sensor

Started by Bryan in comp.arch.embedded15 years ago 6 replies

Hi, I'm involved in a project where we are building a still image capture device. We have a CMOS image sensor (Pixart PAS106B) connected via...

Hi, I'm involved in a project where we are building a still image capture device. We have a CMOS image sensor (Pixart PAS106B) connected via I2C to a philips lpc2106 (Arm 7) microcontroller. I'm able to capture images without trouble, however, I notice - depending on the ambient light - my image is either too light or too dark. To correct this problem, I want to write a small (hopefully ...


Sed1335 with LPC2294

Started by bugfixer in comp.arch.embedded14 years ago 2 replies

Hello to you all. Has anybody used successfully the SED1335 device in bus mode with LPC 2294 (the ARM7 from Philips)? I'm using a Phytec...

Hello to you all. Has anybody used successfully the SED1335 device in bus mode with LPC 2294 (the ARM7 from Philips)? I'm using a Phytec development board, which uses the A2 address bus as the lowest bit for the addresses. The register BCFG3 seem to correctly set: BCFG3 --> 0x0000FBEF bit memory access, RBLE = 0, IDCY=15, WST1=31, WST2=31. I have also set PINSEL2 to 0x0E6149E4,