| * THE SOFTWARE. | * THE SOFTWARE. | ||||
| */ | */ | ||||
| #include <Arduino.h> | |||||
| #include "Wire.h" | #include "Wire.h" | ||||
| #if defined(__arm__) && defined(TEENSYDUINO) | #if defined(__arm__) && defined(TEENSYDUINO) | ||||
| { | { | ||||
| if (!(hardware.clock_gate_register & hardware.clock_gate_mask)) return; | if (!(hardware.clock_gate_register & hardware.clock_gate_mask)) return; | ||||
| #if F_BUS == 120000000 | |||||
| #if F_BUS == 128000000 | |||||
| if (frequency < 400000) { | |||||
| port().F = I2C_F_DIV1280; // 100 kHz | |||||
| } else if (frequency < 1000000) { | |||||
| port().F = I2C_F_DIV320; // 400 kHz | |||||
| } else { | |||||
| port().F = I2C_F_DIV128; // 1 MHz | |||||
| } | |||||
| port().FLT = 4; | |||||
| #elif F_BUS == 120000000 | |||||
| if (frequency < 400000) { | if (frequency < 400000) { | ||||
| port().F = I2C_F_DIV1152; // 104 kHz | port().F = I2C_F_DIV1152; // 104 kHz | ||||
| } else if (frequency < 1000000) { | } else if (frequency < 1000000) { | ||||
| port().F = 0x00; // 100 kHz | port().F = 0x00; // 100 kHz | ||||
| port().FLT = 1; | port().FLT = 1; | ||||
| #else | #else | ||||
| #error "F_BUS must be 120, 108, 96, 90, 80, 72, 64, 60, 56, 54, 48, 40, 36, 24, 16, 8, 4 or 2 MHz" | |||||
| #error "F_BUS must be 128, 120, 108, 96, 90, 80, 72, 64, 60, 56, 54, 48, 40, 36, 24, 16, 8, 4 or 2 MHz" | |||||
| #endif | #endif | ||||
| } | } | ||||