I’ve ordered from digikey a power management IC development board: 448-EVALPS5401INTTOBO1-ND – manufactured by Infineon (“rocky” R2 DB296) – and I can’t get communication with PC using their I2C dongle!
I did alot of troubleshooting, and communicated to digikey, and they shipped a replacement board – same issue!! I think the board is ok, the problem is with the dongle/ Infineon powIR software.
Ok more detailed description:
The dongle is a USB to I2C that terminates in a 3-wire cable that connects to the board – ground, data, and clock. Reading the enclosed documents, after installing the PowIR software, and plugging in the USB dongle, a green “Connected” Icon should show up. This does show up, however the version comes up blank: USBxxxX FW: v0.0 . This is not correct. The supplied manuals (pdf) indicate USB005 should appear. I did install with admin privileges as recommended, and USBExpress driver is installed. When I scan the I2C bus from the software, with the I2C connector hooked to my logic analyzer, there are no signals detected (clock or data). I tried 2 different computers one with windows 10 and one with windows 7. Reading the data sheet and app notes, I bit banged an I2C protocol with a C8051F410 uController – I can successfully communicate with the board reading back the manufacturer ID/acknowledgements and visualizing on logic analyzer. Thus, it appears the USB dongle malfunctions but the DB296 Rocky R2 board is ok.
I tried contacting Infineon directly, but they won’t reply to my emails. Thanks anyone in advance for help/ideas!
See attached slides for more details.
Infineon_v2.pdf (540.1 KB)