标题: Problem while reading / writing AT45DB081D [打印本页] 作者: Vladimir 时间: 2020-9-18 15:00 标题: Problem while reading / writing AT45DB081D
I tried to read / write SPI AT45DB081D SOP8 (Page 264).
Reading is not very stable, there are many errors, ChkSum is different all the time.
Sometimes it reads correctly, but an error occurs if you click Verify. Finding out which reading was correct is very difficult.
I have 5 new AT45DB081D that I wanted to write, Verify gives an error. I noticed a pattern in the error.
The error is 8 bytes, every 256 bytes. Those. the programmer cannot write 264 page bytes.
The program writes 256 bytes, and the remaining 8 makes an error.
I used the recommendations of the developers and connected VCC and MISO to GND through the recommendation of capacitors.
I have Windows 7x64, TL866ii Plus Ver: 04.02.120.
Thank you very much
作者: admin 时间: 2020-9-19 10:22
if the chip was programmed as 256 bytes page. and the chip can not be used 264 bytes pages forever.
(power of 2 bit ) is OTP bit作者: Vladimir 时间: 2020-9-19 15:10
All ICs available for sale are 264 page sizes. AT45DB081 256 bytes are available on request.
Power 2 bit
When trying to read a Page 256 byte flash, an error occurs.
Page 256 bit
And this is what the Verify error looks like when checking a record page 264 bits
I am programming and reading only 264 bit page and cannot seem to accomplish this.
No problem after careful testing
Pay attention to the following points when operating this chip.
1 。When changing hardware from T56->TL866II or TL866II->T56, be sure to select the chip again.
2. add a C 100P between PIN MISO and GND (PIN8 and PIN7) .
3. Some adapters(ON TL866II) may be affected.Can be tested with a simple adapter.
Hi. Can you tell me, where is status register config in progger? I need to known, what is bit0 on my chip (45db011d). I don’t understand 256 or 264 page size config of my chip. I need dump it.
Perhaps this is a stupid question, but please answer.