U2C_RESULT U2C_GetI2cFreq(
HANDLE hDevice,
BYTE* pFrequency
);
The U2C_GetI2cFreq() function obtains I2C bus frequency.
Parameters:
- hDevice
Handle to the U2C-12 device.
- pFrequency
A pointer to byte to be filled with current I2C bus frequency, where:
For convenience following constants were introduced:- 0 corresponds to I 2 C bus fast mode (400 kHz).
- 1 corresponds to I 2 C bus standard mode (100 kHz).
- 1+n corresponds to clock period of I 2 C bus equal to 10 + 2*n uS.
U2C_I2C_FREQ_FAST I2C bus fast mode (400 kHz) U2C_I2C_FREQ_STD I2C bus standard mode (100 kHz) U2C_I2C_FREQ_83KHZ 83 kHz U2C_I2C_FREQ_71KHZ 71 kHz U2C_I2C_FREQ_62KHZ 62 kHz U2C_I2C_FREQ_50KHZ 50 kHz U2C_I2C_FREQ_25KHZ 25 kHz U2C_I2C_FREQ_10KHZ 10 kHz U2C_I2C_FREQ_5KHZ 5 kHz U2C_I2C_FREQ_2KHZ 2 kHz
Return values:
U2C_SUCCESS
The I2C bus frequency value was successfully retrieved.
U2C_HARDWARE_NOT_FOUND
U2C-12 device referenced by hDevice handle was not found.