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04-19-2017 11:01 AM - last edited on 07-24-2017 01:14 PM by Siliconlabs
i follow the standard i2c protocol to communicate with cpt112s but i don't get ack on i2c. the communication start when INT pin goes low. my i2c communication code below attached. please help me.
04-19-2017 08:22 PM - edited 04-19-2017 08:23 PM
Could I know which part you are using?
Is this is a USB bridge part like CP210x? is the board you are testing a evaluation board from Silabs or made my yourself?
If this is a MCU part with USB function from Silabs, what software you have programmed into it?
I am not familiar with usbhost.exe tool, is it a free test tool, where you get it?
04-20-2017 08:30 AM
I am using EFM32GG3301024. The board is not an evaluation board. I have programmed the device with the usbconfig.h, my program, the descriptors. I also have programmed my device with a USB bootloader. I know the boot loader and my program are running together. I got usbhost.exe from AN0065.