AnsweredAssumed Answered

ADE7868 SPI Communication

Question asked by sedgewicks on Sep 24, 2015
Latest reply on Sep 28, 2015 by dlath

Hello everyone,

we are experiencing some problems with SPI communication between a STM32F4 MCU and an ADE7868A.


The connection is straight between MISO, MOSI, SCK, /SS, /RESET.


We do what follows:

Set /SS high

Reset the ADE7868 toggling low /RESET for 50us

Wait 60us

Set /SS low then high for 3 times with a 5ms period


then while(1)


Write via SPI 0x0 in the CONFIG2 register at a speed of 650Khz more or less (we tried other speeds, too)

Read back CONFIG2

Read a registe