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uint8_t Wheel_getPosition(void) { uint8_t position = 0; Wheel_getValue(); //determine which position the wheel is in if (positionData > 0x0806) position = 7 - (positionData - 0x0806) / 260; //scale the data for 8 different positions else position = positionData / 260;
return position; }
下面这句不懂：
if (positionData > 0x0806) position = 7 - (positionData - 0x0806) / 260; //scale the data for 8 different positions
