1
0
tmk_keyboard/tool/mbed/mbed-sdk/libraries/tests/peripherals/TMP102/TMP102.cpp

24 lines
483 B
C++
Raw Normal View History

#include "TMP102.h"
#define TEMP_REG_ADDR 0x00
TMP102::TMP102(PinName sda, PinName scl, int addr) : m_i2c(sda, scl), m_addr(addr) {
m_i2c.frequency(400000);
}
TMP102::~TMP102() { }
float TMP102::read() {
const char tempRegAddr = TEMP_REG_ADDR;
m_i2c.write(m_addr, &tempRegAddr, 1);
char reg[2] = {0,0};
m_i2c.read(m_addr, reg, 2);
unsigned short res = (reg[0] << 4) | (reg[1] >> 4);
float temp = (float) ((float)res * 0.0625);
return temp;
}