dspdon

A review of Arduino Wire lib shows the public declaration: void setClock(uint32_t); and something rather hardware-specific in the implementation, e.g., void TwoWire::setClock(uint32_t frequency) { TWBR = ((F_CPU / frequency) - 16) / 2; // <-- specific to AVR } I'm new to the RBL CC3200 device I'm attempting to bring-up. If anyone has modified the I2C bus speed on this device, I'll be happy to get your input. My need is for a write-once setting at system initialization, nothing dynamic.

I am failing to compile some legacy Arduino projects that call Wire.setClock() (or Wire.setSpeed()). Are these unsupported in the Energia IDE library implementations? I looked but didn't find them in $\hardware\cc3200\libraries\Wire\Wire.c or Wire.h. How else to set 400kHz I2C operation (vs default 100 kHz)? --Don