Hi Zhang, Thank you for your reply. I feel better knowing that CW does provide for this chip, but now I need to figure out what I am missing. I tried the first link you provided. I downloaded the two main components (CW_MCU_10-6Update_1.0.0 & CW_MCU_10-6Update_2.0.0), but when I attempted to install them, I got a message that they were already installed. Maybe I should un-install everything, and start over? This software seems to be complex, as it appears to rely on many underlying components. Is there a single file install file, or method to get the latest version? Thank you for your help! Tim