i have to build a weather station. the data from the sensors is to be transmitted via ethernet and IP protocols.. i couldnt really reach a...

i have to build a weather station. the data from the sensors is to be transmitted via ethernet and IP protocols.. i couldnt really reach a decision on which of these develpoment tools should i use.. or which one is better..? 1. FPGA 2. PIC18F + EN28J60+eeprom ( all from microchip) 3. microntroller with built in ethernet controller OPTION1: its a college project, so FPGA's are readily ...

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

Hello, I'm trying to interface to a FT2232D USB chip using VB and the FTD2XX.DLL. I can program the part description using MProg3.0a and then...

Hello, I'm trying to interface to a FT2232D USB chip using VB and the FTD2XX.DLL. I can program the part description using MProg3.0a and then get what appears to be a valid handle to the device using FT_OpenEx, but when I try writing some bytes out using FT_Write I do not see any pin stimulation from the chip. Anyone have any experience with this? I have the EEPROM set to 245 FIFO mode....

Hello, I am relatively new to the 68HC12 (about 5 months) and I'm using it in a project that I've been working on. I know that the 68HC12 has...

Hello, I am relatively new to the 68HC12 (about 5 months) and I'm using it in a project that I've been working on. I know that the 68HC12 has an external addressing scheme that will allow one to reach 1MBytes worth of data. My question is this: What types of external memories are available? I have found an I2C 1Mbit EEPROM and some SPI flash memories, but nothing near 1MBytes that I ...

Hi Group, We wish to thank you all for the immediate and informative response to our previous topic. We wish to know about programming the...

Hi Group, We wish to thank you all for the immediate and informative response to our previous topic. We wish to know about programming the microcontroller and associated chips this time. These are the chips we have decided to use: AT89C52/AT89S52: MICROCONTROLLER DS1307: RTC MAX232/MAX485: LEVEL CONVERTER AT24C1024: SERIAL EEPROM 4051B: 8:1 ANALOG MUX LM339: COMPARATOR 1. What are th...

Hello, I am programming a PIC in assembly and am trying to think of a way to self-verify the integrity of the code shortly after power up. I...

Hello, I am programming a PIC in assembly and am trying to think of a way to self-verify the integrity of the code shortly after power up. I would like to store the checksum as a literal in flash or store it in the EEPROM. What would a subroutine look like that can calculate the checksum of it's own hex code, including the subroutine itself that is calculating the checksum of it's own ...

I am a new AVR user.I am having a similar problem.I'll explain 1)My programmer is STK200 based.I am using LPT1 pins as...

I am a new AVR user.I am having a similar problem.I'll explain 1)My programmer is STK200 based.I am using LPT1 pins as below 6=SCk 7=MOSI 9=RST 10=MISO 2 and 12 shorted 3 and 11 shorted Now I have pony prog as well as Codevision's inbuilt programmer. Before flashing this IC i tried reading its flash/eeprom etc and good,both softwares read the mega8515. Now I am using external xtal 4MHz...

Is there an easy way to save 12 bit values in eeprom as effeciently as possible? Basically, I have to store tons of data. If I could afford...

Is there an easy way to save 12 bit values in eeprom as effeciently as possible? Basically, I have to store tons of data. If I could afford to loose the resolution,is there a way to convert 12 bit values into 8 bits, kind of like if I had an 8 bit adc to begin with? ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #...

Hi, i'm new in using FTDI FT232BM. Currently, i'm want to send bulk o information from micro-controller to PC using USB. I've built a boar and...

Hi, i'm new in using FTDI FT232BM. Currently, i'm want to send bulk o information from micro-controller to PC using USB. I've built a boar and the device is connected to my pc usb port My PC is able to detect the chip but i couldn't install the drive which i downloaded from FTDI website My PC detects it as Unknown Device Is it necessary to program the eeprom first Anyone could help me Tha...

Hi Folk I am currently looking for a micro with the following must features: 24K+ flash programming memory hardware uart supporting 115200...

Hi Folk I am currently looking for a micro with the following must features: 24K+ flash programming memory hardware uart supporting 115200 baud hardware master i2c 2 channels 10 bit A/D 512+ byte ram operating voltage 2.7V - 5V 1 PWM speed of 10MIPs+ 8051 core, eeprom on chip are bonuses I know there are quite a few out there, eg. microchip pic18lc252, texas instrument - MSP4...

Hi, We are designing a simple childs toy with the following features: * Must Respond to up to 5 buttons * Output up to 2 minutes of...

Hi, We are designing a simple childs toy with the following features: * Must Respond to up to 5 buttons * Output up to 2 minutes of preprogrammed sounds through a speaker * Must be programmable to respond in different ways according to the order of the button pressed It is preferred that the microcontroller contain an 8 - 12 bit onboard DAC, EEPROM programability, low voltage consumpt...

I'm building an AVR-based machine controller for a customer, and he has asked if I can make the unit upgradable from a PDA. The end-user...

I'm building an AVR-based machine controller for a customer, and he has asked if I can make the unit upgradable from a PDA. The end-user wants to read/write EEPROM setup data from a handheld device (they're currently choosing between Palm or WinCE) and for this purpose I added a serial port and simple comms protocol in the original design. Now he wants to be able to upgrade the firmware over ...

For production of measurement probes, we need to store calibration data on them. Because of the limited number of connections, the...

For production of measurement probes, we need to store calibration data on them. Because of the limited number of connections, the 1-wire memories look like good candidates. For now we need at least 16kbit of storage which should be eprom or eeprom. The only suitable device from maxim therefore seems to be the DS2505 with 16kbit eprom. (the larger ones are serialized 'uniqueware' devices). In...

Remember the days when EEPROM emulators were being used as a way of getting the code onto the target and executing the code on the target. I was...

Remember the days when EEPROM emulators were being used as a way of getting the code onto the target and executing the code on the target. I was wondering if there is an equivalent for data flash which uses today's popular protocal such as MMC style, SPI, I2C, microwire etc. Any pointers would be handy. Thanks in advance. Tehn Yit Chin

Hi all, I'm currenlty gettting into embedded system architecture and would like to know where can I find any kind of tutorial/articles/lecture...

Hi all, I'm currenlty gettting into embedded system architecture and would like to know where can I find any kind of tutorial/articles/lecture notes regarding the "art" of selecting the memory for my design I.E. what kind of memory to use SDRAM , SRAM ,FLASH ,EEPROM and where to use it. another thing I'm looking for is stuff on the subject of memory mapping I.E. how to arrange the different ...

Hello everyone! I am using the S12compact Module (http://elmicro.com/en/s12compact.php) with a MC9S12DG256 MCU. Loading my first small...

Hello everyone! I am using the S12compact Module (http://elmicro.com/en/s12compact.php) with a MC9S12DG256 MCU. Loading my first small programs into the internal RAM via D-Bug4 worked fine. Problems occurred while loading them into EEPROM or Flash Memory. The Linker settings of the ICC12 Compiler were correct, but when I tried to upload the s12-files with D-Bug in EVB-Mode and the LOAD-com...

Buongiorno, I am working with _TWO_ devices FT245AM based, EEProm, FTD2XX.DLL V.1.06.06, WinMe or WinXP. SerialNumber is made different for...

Buongiorno, I am working with _TWO_ devices FT245AM based, EEProm, FTD2XX.DLL V.1.06.06, WinMe or WinXP. SerialNumber is made different for the two devices. One device at time works fine, and is correctly listed with function FT_ListDevices(). Two devices together do not work. FT_ListDevices() count two devices, correctly list one of them, and return FT_INVALID_HANDLE for the other one...

http://www.loraxworks.com/4f10dfae90c743d233d7c5bc1f116e19/session.php?action=news The proSeed, the first microcontroller product from the...

http://www.loraxworks.com/4f10dfae90c743d233d7c5bc1f116e19/session.php?action=news The proSeed, the first microcontroller product from the Lorax Works controllers family, with 128Kb of EEPROM, 128Kb of RAM, and a 70Mhz SX microprocessor in a 24pin DIP package, presents an unheard potential for applications requiring large on-board memory. Interesting platform if a little expensive. I a...

Dear all, I am searching to buy Dallas DS 2432P or DS 2432P+. The DS 2432P is a 1kb Protected 1-Wire EEPROM with SHA-1 Engine We are...

Dear all, I am searching to buy Dallas DS 2432P or DS 2432P+. The DS 2432P is a 1kb Protected 1-Wire EEPROM with SHA-1 Engine We are searching any stock between 1 to 1000 pces. Delivery is 12 weeks from Dallas / Maxim, too much for me. If you have some parts in stock and if you want to make good marge on it, please advice at i n f o @ a m o n t e c . c o m . Thank you in advan...

Hi, The EEPROM in Atmel, ATMEGA88-20AU. 32 TQFP package is not functioning well. It works okay but sometimes it gets the garbagge data from...

Hi, The EEPROM in Atmel, ATMEGA88-20AU. 32 TQFP package is not functioning well. It works okay but sometimes it gets the garbagge data from micro . Does anybody know whether is it related to PCB issue, or soe hardware issue. I checked the software many times, i did not finnd anything wrong. Regards, John