Read 29F400 and what does mean flash?

**joe1953** · 30th January, 2014, 02:19 AM

Hello,

i have kia picanto 2006 and i want to make the immo off. Always the car dont start because the immo.

because i want stat the operation i would like to know more about this topic.

To read 29F400 does i need a special reader or can i read 29F400 with orange 5 programmer or UPA USB ??

Sometimes i read something about flash and 29F400 could someone please what does mean ?

**paul_12345** · 30th January, 2014, 03:01 AM

you've got a orange 5 but dont know what flash means?? and couldn't type 29F400 into google to find all the references to 29F400 being a flash memory

**bearheroes** · 30th January, 2014, 08:40 AM

none of your programmer suuports this device.you can do this job with many cheap devices.

**gepakg** · 30th January, 2014, 10:08 AM

153 post and none thanks you and at hi-end you didnt know 29f400 what & where is this,i dont have comment...

regards Gepa

Originally Posted by joe1953

Hello,

i have kia picanto 2006 and i want to make the immo off. Always the car dont start because the immo.

because i want stat the operation i would like to know more about this topic.

To read 29F400 does i need a special reader or can i read 29F400 with orange 5 programmer or UPA USB ??

Sometimes i read something about flash and 29F400 could someone please what does mean ?

**joe1953** · 30th January, 2014, 11:10 AM

whats wromg about thi question. I had never before work with this. And noone told me before about this!
Iam a beginner so what is your problem? I need just for the beginning a little help then i will achieve what i want.
Be happy that you know it and dont laugh about people who try to learn!

In any case thanks!

**gepakg** · 30th January, 2014, 11:39 AM

did you see or hear for search button???

regards Gepa

Originally Posted by joe1953

whats wromg about thi question. I had never before work with this. And noone told me before about this!
Iam a beginner so what is your problem? I need just for the beginning a little help then i will achieve what i want.
Be happy that you know it and dont laugh about people who try to learn!

In any case thanks!

**joe1953** · 30th January, 2014, 02:45 PM

So, i did a research now i need just your opinions.

So want i want is just read 29F400 and remove the flash from the 29F400.

I found this programmer:

MCUmall Electronics Inc. A low cost EPROM EEPROM Atmel PIC I2C SPI programmer online store

this is the right adapter
MCUmall Electronics Inc. A low cost EPROM EEPROM Atmel PIC I2C SPI programmer online store

Could someone recommend this programmer for my issue ?

**gepakg** · 30th January, 2014, 02:56 PM

yes,programmer and adapter can read/write 29f200/400/800

but dont know how you think to remove flash from 29f400

i will tell you one big secret: 29f400 is flash memory!

regards Gepa

Originally Posted by joe1953

So, i did a research now i need just your opinions.

So want i want is just read 29F400 and remove the flash from the 29F400.

I found this programmer:

MCUmall Electronics Inc. A low cost EPROM EEPROM Atmel PIC I2C SPI programmer online store

this is the right adapter
MCUmall Electronics Inc. A low cost EPROM EEPROM Atmel PIC I2C SPI programmer online store

Could someone recommend this programmer for my issue ?

**siyadk** · 5th February, 2014, 07:18 PM

-----------------------------y

**simaservis1108** · 5th February, 2014, 10:28 PM

Eeprom you must write in small blocks,flash is written in big chunks,thus saving time when storing/erasing large ammounts of data.Eeprom and flash is technically the same,all are non-volatile memory.Main difference is in writing and accessing.

**siyadk** · 5th February, 2014, 11:00 PM

Thanks for the info... Is there both flash and eeprom content in 29f400 or is it just flash memory

**bearheroes** · 5th February, 2014, 11:01 PM

and also many flashes have standard number of R/W...

**simaservis1108** · 5th February, 2014, 11:55 PM

Originally Posted by siyadk

Thanks for the info... Is there both flash and eeprom content in 29f400 or is it just flash memory

Only flash...You can look at flash as one BIIIIIIIIIG eeprom,memory wise.You will see the size of dump you get from 29F400,it is 512Kb.

**pawliukazz** · 26th February, 2014, 10:24 PM

The main difference from eprom and flash is not size....

Eprom memory contents can be changed each byte independantly, at any time, for lifetime of eprom. Mainly used in applications where data is constantly/live changing.
Flash memory isbasically one-time prorammable, and you cant reprogram it "on-top" of the old data, however it is erasable, so when erased we can rewrite it...

Flash is NOT one biiiiig eprom.......

**simaservis1108** · 27th February, 2014, 11:52 PM

Originally Posted by pawliukazz

The main difference from eprom and flash is not size....

Eprom memory contents can be changed each byte independantly, at any time, for lifetime of eprom. Mainly used in applications where data is constantly/live changing.
Flash memory isbasically one-time prorammable, and you cant reprogram it "on-top" of the old data, however it is erasable, so when erased we can rewrite it...

Flash is NOT one biiiiig eprom.......

Then why eeprom is not used in RAM?RAM is constantly changing...Flash certanly is not OTP...You can rewrite old data but in chunks...