Hi All, I'm having no problem using I2C on Netduino Plus board. But as soon as I use NP2 I2C, bus transaction doesn't shows in oscilloscope. After doing some digging I found out that I2C transaction will start only if I connect the I2C slave after the NP2 finish initilization process. Meaning I have to wait after NP2 finish initialize and then connect the I2C slave. It doesn't happen with NP board, where i don't have to disconnect I2C slave everytime the NP reboot process. I've upgrade my NP2 firmware to v126.96.36.199. Thanks.