STM32 interfacing FingerPrint Module GTS-511E2 through I2C

[Vikas Agrawal]

Posted on February 14, 2017 at 11:51

Hi All,

I am using GTS-511E2 fingerprint module and i want read data through I2C. 

According to fingerprint module datasheet we need to read EEPROM register value, which i  have read successfully.

Now next part is read default register values of CMOS sensor GC0329 through I2C, i've done configuration as per the data sheet of sensor (I have used sensor device address write address is 0x62 and read address is 0x63).

But the issue is i am not able to read default values.

and i have also tried  reference example given on datasheet but i am not understanding how they are setting register value.

Can anyone help me to solve my problem.

Thanks and Regards 

Vikas 

[S.Ma]

Posted on February 18, 2017 at 16:58

Best is to check the lines on an oscilloscope. To check if the slave really ack the slave address. Some spec may show the 7 bit addre shift right, some show it shifted left. Some sensor have a pin to choose betweeb different slave adresses. Some don t have auto increment, etc... Ideal way for a quick debug is an oscilloscope...