wn/ModbusThermometer
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some more initialization code

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This commit is contained in:
Wolfgang Hottgenroth
2014-11-03 17:18:30 +01:00
parent f506f9a2c2
commit 473eb035b1
3 changed files with 63 additions and 12 deletions
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26
ads1210.h
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@ -10,8 +10,8 @@
class ADS1210 {
public:
ADS1210(uint8_t csPin);
void begin() const;
ADS1210();
void begin(uint8_t csPin);
uint32_t get();
private:
// register addresses
@ -42,6 +42,22 @@ private:
const uint8_t CMR_MSB = 0x04;
const uint8_t CMR_SDL = 0x02;
const uint8_t CMR_DRDY = 0x01;
const uint8_t CMR_MD_Mask = 0xe0;
const uint8_t CMR_MD_NormalMode = 0x00;
const uint8_t CMR_MD_SelfCalibration = 0x20;
const uint8_t CMR_MD_SystemOffsetCalibration = 0x40;
const uint8_t CMR_MD_SystemFullScaleCalibration = 0x60;
const uint8_t CMR_MD_PseudoSystemCalibration = 0x80;
const uint8_t CMD_MD_BackgroundCalibration = 0xa0;
const uint8_t CMD_MD_Sleep = 0xc0;
const uint8_t CMR_Gain_Mask = (0x07 << 2);
const uint8_t CMD_Gain_1 = 0;
const uint8_t CMD_Gain_2 = (0x01 << 2);
const uint8_t CMD_Gain_4 = (0x02 << 2);
const uint8_t CMD_Gain_8 = (0x03 << 2);
const uint8_t CMD_Gain_16 = (0x04 << 2);
// bit values
// INSR
@ -52,10 +68,12 @@ private:
uint8_t m_csPin;
uint8_t m_cmrShadow[4];
void enableCS() const;
void disableCS() const;
void writeCMR (const uint8_t cmr3, const uint8_t cmr2,
const uint8_t cmr1, const uint8_t cmr0) const;
void writeCMR() const;
void readCMR();
};