Hi, I am using an Atmel AT91RM9200 (ARM9) processor which has a single MAC built-in. I also have software drivers which support Ethernet...

Hi, I am using an Atmel AT91RM9200 (ARM9) processor which has a single MAC built-in. I also have software drivers which support Ethernet through this MAC. I have a reference design which uses the RMII interface to a PHY chip (Davicom DM9161). So far so good. However, I want to be able to change the reference design so that I can simultaneously attach two 10/100Base-T devices to this sing...

Hi all , I have just designed a board with a JTAG interface and ISP interface ( with some good advice from past discussions on this forum)and...

Hi all , I have just designed a board with a JTAG interface and ISP interface ( with some good advice from past discussions on this forum)and have also bought the JTAG programmer. Now before I send the board for layout , I am looking at the nitty gritty of bootloading a hello world programme ( flashing leds!) on it. Does the ATMEL parts come preprogrammed with a standard bootloader in the...

Lots of companies have 8051 compatible chips... Atmel, Dallas, Philips, Siemens... Is the 8051 CPU public domain, which could explain why so...

Lots of companies have 8051 compatible chips... Atmel, Dallas, Philips, Siemens... Is the 8051 CPU public domain, which could explain why so many guys chose to use it? Or do these guys still have to pay royalties to Intel? Thanks.

What's the least painful way to implement simple (as in a strictly limited set of connecting devices) USB Host support on a C8051-based design? ...

What's the least painful way to implement simple (as in a strictly limited set of connecting devices) USB Host support on a C8051-based design? USB Peripheral mode is easily handled with something like FTDI's chips. Atmel's AT43USB380 looks interesting. However, not sure if their API's support the 8051. Thanks, -Martin

Hi everyone, Ive only worked with the Atmel ARM variants, but im curious about knowing your views on which ARM-based microcontroller is the...

Hi everyone, Ive only worked with the Atmel ARM variants, but im curious about knowing your views on which ARM-based microcontroller is the most popular..Plz enlighten me! Regards Mayank

This is a bit of a simplistic Q and I am in the early stages of deciding... My background is a huge amount of assembler on Z80, Z180, Z280,...

This is a bit of a simplistic Q and I am in the early stages of deciding... My background is a huge amount of assembler on Z80, Z180, Z280, 80x86, 8031, 8051, AT90S1200, H8/300, etc. Plus a bit of C. No C++. Now I am starting on a new product which will need about 1MB of *data* storage (factory initialised so can be on chip FLASH) plus some floating point maths, and will be done mostly i...

Hi - I'm trying to choose a microcontroller for a project I'm working on. Originally I had been thinking about using a 20Mhz Atmel AVR, such as...

Hi - I'm trying to choose a microcontroller for a project I'm working on. Originally I had been thinking about using a 20Mhz Atmel AVR, such as an ATMEGA168, but I became worried about the raw computing power of the AVR, as one of the main roles of this chip will be to do alot of 16 bit multiplication and trig at a fairly high speed. So I've been looking at using an ARM - specifically the Atm...

So I've finally got my precious samples of ATmega2561. With 256Kbytes of Flash I should be able to store massive look-up tables, but wait...

So I've finally got my precious samples of ATmega2561. With 256Kbytes of Flash I should be able to store massive look-up tables, but wait a minute the Flash memory is segmented into 64Kbyte lumps. The data sheet states: "For ELPM/SPM instructions, the Z-pointer is a concatenation of RAMPZ, ZH, and ZL" But is that really true? I find that I have the following instruction: ELPM Rd,Z+ ...

I'm having a real heck of a time with this chip, the TI ADS1256 A to D converter. Has anyone else here programmed this device before with a uC ....

I'm having a real heck of a time with this chip, the TI ADS1256 A to D converter. Has anyone else here programmed this device before with a uC . I am using an atmel atmega 162 . All of my outputs look alive and well, and the ADC sends back semi random data when I attempt to just read a configuration register. If anyone here has example code (pseudo code, assembler, c, any processor) I would b...

I'm having a real heck of a time with this chip, the TI ADS1256 A to D converter. Has anyone else here programmed this device before with a uC ....

I'm having a real heck of a time with this chip, the TI ADS1256 A to D converter. Has anyone else here programmed this device before with a uC . I am using an atmel atmega 162 . All of my outputs look alive and well, and the ADC sends back semi random data when I attempt to just read a configuration register. If anyone here has example code (pseudo code, assembler, c, any processor) I would b...

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 i've decided start learning ARM7 microcontrollers planning to buy this board http://www.olimex.com/dev/sam7-p64.html is it worth it?? Are...

Hi i've decided start learning ARM7 microcontrollers planning to buy this board http://www.olimex.com/dev/sam7-p64.html is it worth it?? Are there any other good arm7 boards (ATMEL or phillips LPC)

Hi, I'm working on my final year project. I'm going to use AT89C51AC3 or ATmega1280. Last term in Embedded Systems course, we used an...

Hi, I'm working on my final year project. I'm going to use AT89C51AC3 or ATmega1280. Last term in Embedded Systems course, we used an evaluation board(uses MSC1200Y3) that can be programmed over USB. I searched web site of Texas Instruments and find a application note that explains how to make it(In-System Serially Programming). I'm wondering that can I make it too with Atmel's microcont...

Hello: I'm starting up a new desing using 4 Atmel AT25HP512 devices connected to a 4 wire SPI interface. My question is does anyone have an...

Hello: I'm starting up a new desing using 4 Atmel AT25HP512 devices connected to a 4 wire SPI interface. My question is does anyone have an over view (pseudo code) of hew to Initialize Read Write Enable Write These devices. I've got all the C code writen but I'm missing something Thanks In Advance. George

I want to know how PC parallel port [DB-25] is connected internally , Is it connected to ISA or PCI bus? Actually I have designed a...

I want to know how PC parallel port [DB-25] is connected internally , Is it connected to ISA or PCI bus? Actually I have designed a small device with Atmel chip and now I want to write its plug and play driver for windows but this question is halting my coding phase. Thanks for your time.

Hi everybody, I have 2 questions regarding AT91SAM7S64: (1) Bootloader is the BL in some ROM-area or is it located in FLASH like in Atmel...

Hi everybody, I have 2 questions regarding AT91SAM7S64: (1) Bootloader is the BL in some ROM-area or is it located in FLASH like in Atmel AVR controllers? (2) Selfprogramming of flash is it possible to re-program (part of) the FLASH while some other part of the program is still running (something like continous readout of port pins with communication to a host)? Thanks in advan...

On Thu, 09 Oct 2008 10:31:26 -0400, Phil Hobbs wrote: > Jasen Betts wrote: > > On 2008-10-06, Martin Brown wrote: > > > > > The...

On Thu, 09 Oct 2008 10:31:26 -0400, Phil Hobbs wrote: > Jasen Betts wrote: > > On 2008-10-06, Martin Brown wrote: > > > > > The most obvious way is not always the most efficient algorithm. Certain > > > C constructs are hell for optimising compilers. And without using lint > > > (or a similar tool) there are far too man

Hi, I'm a newbie into embedded programming. The project i'm working on is based on an Atmel avr atmega128 device (with a GSM device connected...

Hi, I'm a newbie into embedded programming. The project i'm working on is based on an Atmel avr atmega128 device (with a GSM device connected to it). The environment used is IAR EW with AVRStudio. Using the time.h library, i try to get the actual time with the following code : --------------------------------------------------- time_t now; time(&now); printf("Time is %s\r\n", ctime(...

I'm looking for a simple embedded web server solution to run alongside an 8-bit processor (Atmel AVR). The Lantronix Xport looks interesting, a...

I'm looking for a simple embedded web server solution to run alongside an 8-bit processor (Atmel AVR). The Lantronix Xport looks interesting, a number of people here seem to use it. However, so maybe I'm going blind, but nowhere on the Lantronix web site can I see how you can setup your own web pages to load onto the Xport to allow communications to the outside world. Brian

Hi all, Any advice/pointers or instructions would be most helpful. I am still a newbie at embedded design so please humor me. I have a...

Hi all, Any advice/pointers or instructions would be most helpful. I am still a newbie at embedded design so please humor me. I have a datalogger module written using an Atmel 8051. I want to add a USB port to it so I can simply plug in a USB flash drive and have the data automatically downloaded as a formatted text file. I have read www.usb.org... but I still don't know where to sta...