at24c04 word address problem

8052 at24c04

hi all
i connected at89c51 with at24c04 eeprom to store data
i have problem
i am wirting the data in the at24c04 with address 0101 to store data and then read data.
the problem is at89c51 does not write the data in the at24c04 on address 0101h
have any body solution of this error please send me some examples
to write data in write current data and read current data in the eeprom at24c04

please send me some examples

at24c04 word address

Here is one

**broken link removed**

Nandhu

sofi_je said:

hi all
i connected at89c51 with at24c04 eeprom to store data
i have problem
i am wirting the data in the at24c04 with address 0101 to store data and then read data.
the problem is at89c51 does not write the data in the at24c04 on address 0101h
have any body solution of this error please send me some examples
to write data in write current data and read current data in the eeprom at24c04

please send me some examples

Click to expand...

it is not difficult but i think you are making some mistakes in circuitry,, you upload your diagram then it will be better to suggest you.

hi all
i connected at89c51 with at24c04 eeprom to store data
i have problem
i am wirting the data in the at24c04 with address 0101 to store data and then read data.
the problem is at89c51 does not write the data in the at24c04 on address 0101h
have any body solution of this error please send me some examples
to write data in write current data and read current data in the eeprom at24c04

please send me some examples


the problem is
i am wirting the data in the at24c04 with address 0FFH to store data and then read data its ok
but then i write the data in the eeprom with address 0FFH increase by one
0100H it will not write to the eeprom

please help me
and one more help me
have any body the diagram and the code of at89c51 to in the tv control such as ( volume,mute,brightness,contrast,color)
please send me some codes of asm files and diagrams.

hi all
i connected at89c51 with at24c04 eeprom to store data
i have problem
i am wirting the data in the at24c04 with address 0101 to store data and then read data.
the problem is at89c51 does not write the data in the at24c04 on address 0101h
have any body solution of this error please send me some examples
to write data in write current data and read current data in the eeprom at24c04

please send me some examples


the problem is
i am wirting the data in the at24c04 with address 0FFH to store data and then read data its ok
but then i write the data in the eeprom with address 0FFH increase by one
0100H it will not write to the eeprom

please help me
and one more help me
have any body the diagram and the code of at89c51 to in the tv control such as ( volume,mute,brightness,contrast,color)
please send me some codes of asm files and diagrams.

hello
hello
have any body anser for my question
please send me

What happened to the link i already gave?

btw how do you know that write to eeprom works?

how you decide where the problem is in writing or reading?

I made a 24cxx programmer for example from lancos.com

first write to the lowest address using eprom programmer and try to read it thro micro.

after succeding in reading try writing to it.

afterwards try with a different addresses.

there are many examples in the net. try google.
find out the best one that suits your need.
post ur results. I will try to finish it up

Nandhu

hi sir nandhu015
sir you have any asm code to write dat to address 0ffh and 0100h
to the at24c04. sir please send me the code
my code write data in current write mode write data at address 0ffh ok
and error at write address 0100h
please send me the code or explain me what method i use to write data at
address 0100h in curent mode .

sorry for poor english
please solve my problem
thanks thanks

hi sir nandhu015
sir you have any asm code to write dat to address 0ffh and 0100h
to the at24c04. sir please send me the code
my code write data in current write mode write data at address 0ffh ok
and error at write address 0100h
please send me the code or explain me what method i use to write data at
address 0100h in curent mode .

sorry for poor english
please solve my problem
thanks thanks

start condition - chip code (A0h for ex) - add - data

ok now do this

start condition - chip code (A0h for ex) - add - data

but in chip code A0 h lsb is nothing but Msb of add,
before placing the chip code copy the upper most bit of add into the chip code byte

ok..........................................................


The 4K EEPROM only uses the A2 and A1 device address bits with the third bit being a
memory page address bit. The two device address bits must compare to their corre-sponding
hard-wired input pins. The A0 pin is no-connect.

if your code r/w the chip then your code is ok..

Hi My Friend
Look My frined a 2404 is a 512X8 byte EEprom or 4K bit EEprom

Look at my attachment which is asm file writing to address 0FCH , 0FFH,0100H and
finaly 0101H with reading back the data to be verify

i think i helped,Don't forget to press helped me

Regards
MedTronic