Types of .iic files

Started by sunkuranganath in comp.arch.embedded12 years ago

Hi, I am trying to find out the different types of .iic files available. I am looking for any resources where I can get the info. I am...

Hi, I am trying to find out the different types of .iic files available. I am looking for any resources where I can get the info. I am actually trying to write onto EEPROM available on Cypress CY7c68014a for the initial boot up sequence and would like to know the different options available to write an .iic file onto it. Thanks in advance! Ranganath


MCU with CANbus + 10-bit ADC

Started by Mochuelo in comp.arch.embedded14 years ago 24 replies

Hi, Which is the cheapest MCU that you know of, with (Flash) AND (CANbus) AND (10-bit ADC) AND (EEPROM OR I2C)? Is there any web page with...

Hi, Which is the cheapest MCU that you know of, with (Flash) AND (CANbus) AND (10-bit ADC) AND (EEPROM OR I2C)? Is there any web page with a database where I can look for an MCU with a certain set of characteristics? It should cover as many manufacturers as possible. Thanks in advance,


Programming AVRs with AVRISP when using the SPI bus at the same time?

Started by Scotty in comp.arch.embedded14 years ago 3 replies

Hi I would like to ask a question because i would like to make sure before i try. I currently using a AVRISP programmer from Atmel which uses...

Hi I would like to ask a question because i would like to make sure before i try. I currently using a AVRISP programmer from Atmel which uses the SPI to program the AVR. And i want to also use the SPI for communication with a SD Card. I am wondering if there could be an issue. Because one of my friends that have the same programmer was using the programmer and EEPROM through the SPI and so...


Warning on migrating to ATMega8515 - eeprom problem

Started by Mike Harrison in comp.arch.embedded15 years ago 13 replies

Here's a warning that may hopefully save someone else all the hassle we've just had after migrating a product to the Mega8515 - there may be a...

Here's a warning that may hopefully save someone else all the hassle we've just had after migrating a product to the Mega8515 - there may be a similar issue with other back-compatible mega parts.. We had some code that was originally written for a 90S4414. This moved to a 90S8515 a while ago when the 4414 went obsolete. We recently changed to the AtMega8515, again due to the old part going o...


implementing ethernet server on FPGA or other choices

Started by Anonymous in comp.arch.embedded12 years ago 5 replies

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 ...


SPI Serial EEPROM design

Started by GMM50 in comp.arch.embedded15 years ago 12 replies

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


FT2232D USB VB interface

Started by Thomas Magma in comp.arch.embedded12 years ago 7 replies

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....


External Memory Capabilities of the HC12

Started by zach...@gmail.com in comp.arch.embedded13 years ago 1 reply

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 ...


Help needed for programming of microcontrollers and associated chips..

Started by adam in comp.arch.embedded14 years ago 3 replies

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...


indi microprocessor/microcontroller 16bit

Started by jacko in comp.arch.embedded13 years ago

hi completed 44 pin QFP spec for any fab which wishes to manufacture under BSD licence. Use indi16.3.3.zip Quartus II source and add some RAM...

hi completed 44 pin QFP spec for any fab which wishes to manufacture under BSD licence. Use indi16.3.3.zip Quartus II source and add some RAM and EEPROM and a PLL crystal oscilator circuit. Give it a simulation, fix any minor problems. Give it the number designation 56116 and go into competition with PIC microcontrollers. cheers.


micro self-check of checksum

Started by Thomas Magma in comp.arch.embedded14 years ago 21 replies

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 ...


ATmega8515 Fuse bits newbie

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

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...


Storing variables

Started by Richard in comp.arch.embedded15 years ago 8 replies

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 #...


FTDI FT232BM

Started by Zerocool in comp.arch.embedded15 years ago 11 replies

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...


advice on choosing mcu

Started by Calvin Chan in comp.arch.embedded16 years ago 10 replies

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...


Selection of a microcontroller for Childs Toy...

Started by Anonymous in comp.arch.embedded14 years ago 16 replies

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...


Simple bootloader for AVR?

Started by Anonymous in comp.arch.embedded15 years ago 14 replies

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 ...


Alternate supplier for dallas/microchip 1-wire memories

Started by Stef in comp.arch.embedded11 years ago 10 replies

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...


data flash emulators

Started by Anonymous in comp.arch.embedded15 years ago 1 reply

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


Memory selection for an embedded system

Started by Anonymous in comp.arch.embedded14 years ago 6 replies

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 ...