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22 Threads found on edaboard.com: 24c04 Eeprom
Hello Everybody .. I am working on a project in which I have to interface an IR based digital thermometer with PIC16F877A .. My task is to fetch the thermometer readings i.e. Temperature .. There is an eeprom IC inside the thermometer (connected over I2C bus), may be 24c04, which saves the readings and thermometer can store 30 readings .. My quest
#include sbit SCL = P2^2; /* connect to SCL pin (Clock) */ sbit SDA = P2^1; /* connect to SDA pin (Data) */ void InitSerial(void) { SCON = 0x50; // setup serial port control TMOD = 0x20; // hardware (9600 BAUD @11.0592MHZ) TH1 = 0xFD; // TH1 TR1 = 1; // Timer 1 on } void Ser
MASTER IC - PIC18F4520 SLAVE IC - 24c04 (eeprom IC 4Kbytes memory I2C interface) LCD using in 4 bit mode data lines of LCD connected to PORTB(RB7 To RB4) db7-RB7 db6-RB6 db5-RB5 db4-RB4 en-RD2 rw-RD1 rs-RD0 bl-RD3 master ic sends data "ABC" to eeprom ic and while receiving same data from eeprom ic, master (...)
hello, i'm beginner in this, so plz heeelllllllpppp me .... for "programming to 24c04 with 89c52 in read mode specially; i wants write many values of integer n read continuously ....i m totally confused how to use eeprom in my programming .....i hav attached my prog sample.....plz help me ....this is my last hope....:sad::sad::sad::sad::sad::sad::
Hi all. I've got lcd smartie 2x16 board from sure electronics. Board is in version 1. There is many components missing comparing to v2 and v3 boards. can somebody having v2 or v3 post picture of the board? I want to add temperature sensor (LM75), eeprom (24c04) and some resistors to upgrade my board. I was looking everywhere and there is no i
I am using 24C64 with Atmega32, the concept is borrowed from that of Data-logger from dharmanitech.com. To increase memory I wish to use 24C256 and for some trials I tried to use 24c04. The routines for eeprom are taken from the files from the above link i.e. 24C64.h and 24C64.c. Now the question is th
I know, due to the difference in address width we can't use code for 24C02 while using 24C1024. But I have used 24c04 instead of 24C02 & it is working alright. So my question is that whether code will change for every eeprom or it is applicable for group. I will explain my doubt further. Code A will work for 24C02/04/08, code B will work for 24C
Dear Sirs, Please help me by guiding me to correct the Code i have written. I am using Hyper Terminal for inputting 8 Bytes of data to 8051, which has to be written in to eeprom 24c04 at ADDR 0A0H From RAM location 30H to 37H. After writing cycle is completed, I want to read from eeprom and again save in RAM starting location from (...)
I'm making a distance measuring vehicle.i use pic 18f452.counted data will store at external eeprom 24c04.next when i plug via rs232 to the pc data will show in hyper terminal..i use pic c compiler.will somebody help me to code this project.I'm new.
24c04 is 4kB eeprom according to datasheet. 4kB = 4096 = 15bits of addresses right? so the address would be 0x000 to 0x2FFF ?? The datasheet says organized with 32 pages of 16 bytes each, the 4K require a 9bit data word address for random word addressing This is a [B
PIC 16f877 can be interfaced with eeprom 24c04 using I2C. find out more about pic , eeprom, I2C and atleast try n write a program.. if you face any problem we can giv u suggestion for correcting the program. Good Luck
for 24c01 to 24c16 (including 24c04) you have only 1 byte for addressing... (works fine with 24c01 and 24c02) for extra addressing you must use the 3 lower bits of I2c-address so you must chage your writing/readings routines... {the extra stuff over 0xA0 to the 3bit extra addressing... } unsigned char ReadBYTE(unsigned int Addr) {
It's possible via the parallel port .. Here is an example with bigger eeprom, but the same principle applies to the 24c04: Also, see: MemPlus 1.2 works with a lot of eeproms .. IanP :| /* * 24C32_1.C * * Illustrates how to write to
The main difference between these two eeproms is in the way they are interfaced with something else .. The 93C46 has 3-wire serial interface (Din, Dout and Clock) whereas the 24c04 uses 2-pin I2C interface and can be easily connected to any host I2C device (or bus) .. Other differences can be found in their datasheets which are readily availa
hi friends, can some one guide me how to write the serial data comming from pc. to the eeprom like 24c04..? i m using 89c51 MCU from ATMEL and using KAIL UV-2 to program it in "c" i can take the serial data out on the ports.. but i am stuck at how to write it to the eeprom like 24c04 and read it back.. on serial port..( (...)
hi i am trying to use TWI on atmega8, i want to write single byte 0xaa on eeprom 24c04 .i am simulating it in proteus.i dont get ack response when i send device address to eeprom ,so i send repeated start condition,i have pulled up the sda and scl lines,also address i use is 0xa0, with all address pins of eeprom gnd in (...)
I use the DSPIC 30F4011 for my project. When I config to protect code. The eeprom alway readed is 0x00. My PCb have designed without the external eeprom such as 24c04 ... Please help me ! Thanks a lot !
hi friends, can some one guide me how to write the serial data comming from pc. to the eeprom like 24c04..? i m using 89c51 MCU from ATMEL and using KAIL UV-2 to program it in "c" i can take the serial data out on the ports.. but i am stuck at how to write it to the eeprom like 24c04 and read it back.. on serial port..( (...)
Hi all, I know there are some pretty big difference between these eeprom memory. But I forget what it is. The difference could be in the acknowledge bit or the write protection pin. I just can't find the difference. All I remember was that I have to change my design last time when one of the particular mfg. have too long a lead time. Anyone
ATMEL website has application notes to do that. It might be for a different part number of chips. Just remember that the controller 89C2051 is software compatible with 89C52 and 24c04 is software compatible with all the 24C series memories. Hope that Techie wouldn't mind :
I am trying to make a i2c connection between 24c04 eeprom and pic16f877. I wrote the codes that need for. But I guess, it has some problem. But i can't find it. #define LC01CTRLIN H'A0' ; I2C value for CONTROL BYTE when ; INputing data to the eeprom #define LC01CTRLOUT H'A1' ; I2C value for CONTROL BYTE when ; requesting OUTput from t
hi this orion programmer schematci,software and pcb knowing that this progrramer(interface)is called universal programmer Serial eeprom bcz its support the folloeing eroms: 24c00 24c01 24c02 24c04 24c08 24c16 24c32 24c64 24c65 24c128 24c164 24c174 24c256 24c512 25010 25020 25040 25080 25128 25160 25256 25320 25512 25640 2913 2914 2919 2922