April 09, 2020
Topic: How to read and write PCF7953 chip, which tool is good?
Suggestion:
Two ways to read and write PCF79xx Chip:Iprog+ Pro+PCF79XX SD-card adapterorVVDI prog+PCF79XX-Adapter-V2.
How they work?
1.Iprog+ Pro+ PCF79XX SD-card adapter:
Function: Read and write PCF79XX chip models incl. PCF7941/ PCF7952/ PCF7953/ PCF7961 through MSDA, MSCL lines.
How to read PCF7953 chip by Iprog+ clone&+ PCF79XX SD-card adapter?
Step 1: Connect all the devices as shown in the following pictures
Step 2: Run Iprog+ Pro software
(The latest version is V82:https://mega.nz/#!OhsFmC4Y!LjtenLJ58YZHPSu6E-3UWBC9rMCHhTvrT1fsiSnevF4)
Select MCU-> PCF79xx + SD-> pcfprogb_v2
Select Type of PCF: PCF7953, and click "Connectâ€
The LED lights on the SD-card adapter will turn off automatically
Step 3: Click "Read EEPROMâ€
Reading EEPROM…
After read EEPROM success, the data value will appear as below in the figure
Then you can write data depends on your need.
For your convenience, here is the video about how to read PCF7953 data by Iprog+ clone and PCF79XX SD-card adapter:
2.VVDI prog+ PCF79XX-Adapter-V2
Function: Read and write PCF79XX chip models incl. PCF7941/ PCF7952/ PCF7953/ PCF7961/ PCF7922/ PCF7945
Note:
1). Currently PCF79XX chip support lock, unlock and read/write data.
2). RENEW function will be added in the coming days, it will load corresponding data and directly renew key, the detailed specific car model data will be released.
Two optional ways to read write PCF79XX chip:
1).Remove the chip and put it in the IC socket, select option "PCF79XX chipâ€
2). Connect wire to the circuit board, select option "PCF79XX adapterâ€
Note: If PCF79XX adapter option can't recognize chip due to the affection of circuit board, just remove chip and put it in IC socket, then use option "PCF79XX chip†to operate.
VVDI PROG software interface introduction:
1)."EEPROMâ€: data storage space, it can read & write in protected status.
2)."EROMâ€: program memory space (equal to other chip’s FLASH space), it can read & write in unprotected status.
3)."Protectedâ€: click "Protected†to lock chip and unable to read out chip data.
4)."Unprotectedâ€: click "Unprotected†to unlock chip and able to read out chip data.
After unlock, the original data in the chip will be cleared.
3.Price & Package:
Iprog Pro+ with 7 Adapters Plus Iprog PCF79XX SD-card Adapter: $141
Xhorse VVDI PROG Programmer plus PCF79XX Adapter: $469
Source: https://obd2-diag.blogspot.com/2020/04/how-to-read-and-write-pcf7953-chip.html
Posted by: obdtool at
08:52 AM
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I Iprog is the best tool on that list. With its versatility and ease of use, you won’t go wrong with picking it over the other tools. If you are still unsure, I would suggest that you do more research and really get in to the nitty-gritty of all the tools and see if any of them checks all the things that you want out of the tool for the tasks that you need them for. After that, you can be confident with your purchase for sure. You can do your research by visiting each site and see if the homepage is legit or not.
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