Part Number: TPS6594EVM
Hello , i have three questions ,
I am using the TPS6594EVM to connect to an external PMIC in a a custom board , the PMIC adress is 0x28 , is that normal?
When i try to program the PMIC i get this error , i connected the I2C pins using the j28 and supplied VIO with 3v3 from the EVK .
when i try to read back the register its all 0x00 , is the EVK damaged or the PMIC locked?
thank you
HI Katie , I have this connection
EVK / My board
VIO_in (J29) ==> Pin 48 of the PMIC
GND ==> GND to my board
SDA1 (J29) ==> Pin 30 of the PMIC
SCL1 (J29) ==> Pin 31 of the PMIC
the PMIC in my board is supplied with 5v to VCCA pin4
The evk is supplied with 5V USB with jumper on sys/5V , gpio1with scl2 and sda with gpio2
My PMIC enable PIN is in the GND .
I connected my I2C analyser and this is what i get when i try to upload a firmware
i am using the GUI 3.00 , it detect the PMIC at address 0x28 but thats all , register reads 0 and i cant upload to it
