I'd like to talk to anyone who has worked with the C-MAX CME800-BUS WWVB receiver board. I have tried working with this part to the point of...

I'd like to talk to anyone who has worked with the C-MAX CME800-BUS WWVB receiver board. I have tried working with this part to the point of wanting to smash it with a mallet. I am trying to use it with a PIC 18F microprocessor and all I can get the thing to do is echo characters right back to the PIC. Anyway, any help is welcomed. Thanks! Mike Harpe

Hi all, I have an embedded system which is required to have memory partitioning due to safety reasons. Unfortunately there are sporadically...

Hi all, I have an embedded system which is required to have memory partitioning due to safety reasons. Unfortunately there are sporadically bus address error exceptions. I am using a Motorola M68376 as a foreground/background system but I think it's no problem of the microprocessor. There are three asynchronous interrupt sources. Each of them has a different ISR assigned. The principle st...

First: Sorry to those c.a.e folks who abhor s.e.d -- hopefully the politics won't bleed onto this thread. On to the real question. It's...

First: Sorry to those c.a.e folks who abhor s.e.d -- hopefully the politics won't bleed onto this thread. On to the real question. It's phrased oddly, but I think it gets to the point best: If I have a dingus with a battery in it, and I want to charge that battery via USB, and I want to get the most out of the USB port, does that dingus have to have a microprocessor in it that talks...

Hello all, I'm trying to choose a microprocessor for a new design and would like to get input from members of the community who have used...

Hello all, I'm trying to choose a microprocessor for a new design and would like to get input from members of the community who have used these processors. The requirements are an Ethernet MAC (PHY would be nice, but haven't found a chip which meets this plus the other requirements), I2C, external memory bus to access 4MB SRAM (or SDRAM) buffer, hobbyist-friendly packaging (not BGA, prefe...

Hi All, I want to move to something bigger than a Z80/8032/PIC which I use at the moment. I would like about 50 MIPS, 1MByte Flash, 256KByte...

Hi All, I want to move to something bigger than a Z80/8032/PIC which I use at the moment. I would like about 50 MIPS, 1MByte Flash, 256KByte RAM - possibly all external, integrated ethernet, 2 serial ports, enought DSP capability to do 2 or so channels VOIP, the ability to self program (bootloader) for remote update. I have looked at ST, Freescale and Rabbit. The rabbit seems to be alm...

Hello Friends, As a part of my school project I have to develop an application on WINCE but before that have to port wince on development kit...

Hello Friends, As a part of my school project I have to develop an application on WINCE but before that have to port wince on development kit has Atmel AT91SAM9261 microprocessor. can anyone suggest what are the changes I need to do in config.bib and on UBoot code to make wince image to load using uboot bootloader ? Thanks in advance. Ankur.

I am currently working with a client who is designing a PIC microprocessor into his system. It may be too late to change, but I am being...

I am currently working with a client who is designing a PIC microprocessor into his system. It may be too late to change, but I am being reminded of all the drawbacks to writing software for the PIC. I heard from a committed PIC booster that "yes, the architecture sucks for programming, but the PIC never has delivery problems". Choosing a processor that my client couldn't get down the...

Hi all, we're trying to solve a complicated task. We have to choose uP' family for our next generation's products. Since now we disperse a...

Hi all, we're trying to solve a complicated task. We have to choose uP' family for our next generation's products. Since now we disperse a lot of energy (and money of course) in different system equipped with: - infineon C167CRLM - fujitsu MB90545 - various microchip - some atmel (AVR) - some TI (don't remember partname) Mine product are something like PLC. To be more precise, produ...

hi, may be caused by a buggy code somewhre, a system we developed under M16C microprocessor will reset itself in some cases. i want to...

hi, may be caused by a buggy code somewhre, a system we developed under M16C microprocessor will reset itself in some cases. i want to find out what's the cause of the reset ( the hardware watchdog was turned off ). is there any idea about this kind of problem? and, could you please introduce any method used to detect causes of system reset? thanks in advance. - narke

I am currently develop a data logger system using MC68HC11A0 microprocessor with expanded mode. I am a bit confused with the mass information...

I am currently develop a data logger system using MC68HC11A0 microprocessor with expanded mode. I am a bit confused with the mass information that i get from the internet. Maybe someone who had done it before can provide me the schematic diagram to connect the SD card using SPI mode? Please send me the related source code to access the SD card if possible. Thanks.

I have a system that includes both C (for a microprocessor) and Verilog code. Where these components interact, I would like to have a...

I have a system that includes both C (for a microprocessor) and Verilog code. Where these components interact, I would like to have a single source file from which certain relevant constants are derived. Initially, at least, I'm looking for a way to simply generate a Verilog file from a 'C' include file. This would be pretty straightforward except for the macros in C. (I wrote one but it...

Hello, I'm about to start working on a project that requires an electronic system be controlled wirelessly through the internet. I need to...

Hello, I'm about to start working on a project that requires an electronic system be controlled wirelessly through the internet. I need to develop the software (with a GUI) which you can access from the internet that would enable the remote control of the system. the system utilizes pulse width modulation to control a small positioning device. I basically have 2 questions.... 1) can anyone...

Hello to all, I'm looking since many days something about my problem without find nothing interesting so I'm going to post it. I have a...

Hello to all, I'm looking since many days something about my problem without find nothing interesting so I'm going to post it. I have a system of 4 different closed boxes: the Main box based on an Linux ARM9 processor with a static IP and the A, B and C boxes each one based on an AT90CAN128 microprocessor. The 4 boxes are connected all toghether with CAN-BUS. Let's say... my system is ...

I'm about to do some work with UPnP. The platform I need is described below. Any suggestions? The specs are: a) Any small embedded...

I'm about to do some work with UPnP. The platform I need is described below. Any suggestions? The specs are: a) Any small embedded microprocessor c/w a multitasking OS and a TCP/IP stack b) 10BaseT Ethernet interface c) A few discrete I/O and a 1Wire interface for the Dallas temperature sensor The development specs are: i) Any free or open source compiler (C preferred, but will consider ...

Hi, I was wondering if anyone knows of an embedded processor that has a video output upto SXGA or UXGA. If not, is it possible to scale a...

Hi, I was wondering if anyone knows of an embedded processor that has a video output upto SXGA or UXGA. If not, is it possible to scale a SVGA output to SXGA without a great loss in pixel information. Thanks P

Hi, I develop embedded software for a living. We need to instrument the bidirectional serial interface between our product and a...

Hi, I develop embedded software for a living. We need to instrument the bidirectional serial interface between our product and a daughterboard (containing its own microprocessor) so that we can have another piece of software (which we write to run under XP or Vista) examine the serial communication and look for logical errors. It would seem most convenient for us to use two of those...

Hi What are the differences between ISR and a subroutine in embedded systems, how about the following: - interrupts are disabled by the...

Hi What are the differences between ISR and a subroutine in embedded systems, how about the following: - interrupts are disabled by the microprocessor prior to calling the isr - isr's are always smaller - an isr cannot be written in C - a subroutine always has arguments - the CPU flags are stored on the stack in addition to the return address Thanks

Some people have asked me for help in securing their application code in embedded devices from the threat of reverse engineering. I...

Some people have asked me for help in securing their application code in embedded devices from the threat of reverse engineering. I was looking for some papers/sites that discuss approaches, good and bad, to address this issue. This system is attached to a network, so it can get encrypted data over a wire. They are interested in options other than using a secure microprocessor with p...

I have an application that needs to drive lots of solenoids. These are distributed around a plant - they may be a couple of inches apart, or...

I have an application that needs to drive lots of solenoids. These are distributed around a plant - they may be a couple of inches apart, or many feet apart. Currently the solution is to cable the solenoids individually back to a control rack via custom made multi-way cable looms where a microprocessor based system decodes serial commands and energises the correct solenoids. There can be thou...

Hey all, I'm in a microcomputer hw/sw class where we are building a microprocessor board using an 8088. I wire wrapped the clock circuit and...

Hey all, I'm in a microcomputer hw/sw class where we are building a microprocessor board using an 8088. I wire wrapped the clock circuit and the reset circuit before testing it with the 8088 in its socket, and all seemed to be fine (voltage tests, and frequency on the clock). When I put the 8088 in its socket I was getting a short between VCC and Ground on the power supply. When I remove...