Continued to work on the MAX3010X driver, setup function is complete, still a lot to port/implement
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anschrammh
parent
23d3c47374
commit
42c01e1d08
@ -59,6 +59,30 @@ bool MAX3010X_soft_reset(void)
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, data);
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}
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bool MAX3010X_shutdown(void)
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{
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uint8_t data;
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, &data)) return false;
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// We set the shutdown bit and write the data back to the register
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data |= 1 << MAX3010X_MODE_CFG_SHDN_BIT_POS;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, data);
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}
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bool MAX3010X_wakeup(void)
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{
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uint8_t data;
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, &data)) return false;
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// We clear the shutdown bit and write the data back to the register
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data &= ~(1 << MAX3010X_MODE_CFG_SHDN_BIT_POS);
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, data);
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}
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bool MAX3010X_set_FIFO_average(MAX3010X_Sample_Average_e sampleAverage)
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{
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uint8_t data;
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@ -84,6 +108,112 @@ bool MAX3010X_enable_FIFO_rollover(bool enabled)
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_FIFO_CFG_REG, data);
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}
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bool MAX3010X_set_LED_mode(MAX3010X_LED_Mode_e LEDMode)
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{
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uint8_t data;
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, &data)) return false;
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data &= 0xF8;
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data |= LEDMode;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MODE_CFG_REG, data);
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}
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bool MAX3010X_set_ADC_range(MAX3010X_ADC_Range_e ADCRange)
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{
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uint8_t data;
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_SPO2_CFG_REG, &data)) return false;
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data &= 0x9F;
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data |= ADCRange << 5;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_SPO2_CFG_REG, data);
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}
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bool MAX3010X_set_sample_rate(MAX3010X_Sample_Rate_e sampleRate)
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{
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uint8_t data;
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_SPO2_CFG_REG, &data)) return false;
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data &= 0xE3;
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data |= sampleRate << 2;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_SPO2_CFG_REG, data);
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}
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bool MAX3010X_set_pulse_width(MAX3010X_LED_Pulse_Width_e LEDPulseWidth)
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{
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uint8_t data;
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_SPO2_CFG_REG, &data)) return false;
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data &= 0xFC;
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data |= LEDPulseWidth;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_SPO2_CFG_REG, data);
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}
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bool MAX3010X_set_pulse_amplitude_red(uint8_t powerLevel)
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{
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_LED1_PULSE_AMP_REG, powerLevel);
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}
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bool MAX3010X_set_pulse_amplitude_IR(uint8_t powerLevel)
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{
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_LED2_PULSE_AMP_REG, powerLevel);
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}
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bool MAX3010X_set_multi_LED_mode_slot(uint8_t slot, MAX3010X_SLOT_LED_e slotLED)
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{
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uint8_t data;
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switch(slot)
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{
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case 1:
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT1_2_REG, &data)) return false;
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data &= 0xF8;
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data |= slotLED;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT1_2_REG, data);
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case 2:
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT1_2_REG, &data)) return false;
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data &= 0x8F;
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data |= slotLED << 4;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT1_2_REG, data);
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case 3:
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT3_4_REG, &data)) return false;
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data &= 0xF8;
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data |= slotLED;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT3_4_REG, data);
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case 4:
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if(!i2c_read_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT3_4_REG, &data)) return false;
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data &= 0x8F;
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data |= slotLED << 4;
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return i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_MULTI_LED_MODE_CTRL_SLOT3_4_REG, data);
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default:
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return false;
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}
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}
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bool MAX3010X_clear_FIFO(void)
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{
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if(!i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_FIFO_WR_PTR_REG, 0x00)) return false;
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if(!i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_FIFO_OVERFLOW_CNT_REG, 0x00)) return false;
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if(!i2c_write_reg(MAX3010X_I2C_ADDR, MAX3010X_FIFO_RD_PTR_REG, 0x00)) return false;
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return true;
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}
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bool MAX3010X_configure(uint8_t powerLevel, MAX3010X_Sample_Average_e sampleAverage, MAX3010X_LED_Mode_e LEDMode, MAX3010X_Sample_Rate_e sampleRate, MAX3010X_LED_Pulse_Width_e LEDPulseWidth, MAX3010X_ADC_Range_e ADCRange)
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{
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if(!MAX3010X_soft_reset()) return false;
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@ -92,5 +222,24 @@ bool MAX3010X_configure(uint8_t powerLevel, MAX3010X_Sample_Average_e sampleAver
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if(!MAX3010X_enable_FIFO_rollover(true)) return false;
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if(!MAX3010X_set_LED_mode(LEDMode)) return false;
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if(!MAX3010X_set_ADC_range(ADCRange)) return false;
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if(!MAX3010X_set_sample_rate(sampleRate)) return false;
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if(!MAX3010X_set_pulse_width(LEDPulseWidth)) return false;
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if(!MAX3010X_set_pulse_amplitude_red(powerLevel)) return false;
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if(!MAX3010X_set_pulse_amplitude_IR(powerLevel)) return false;
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if(!MAX3010X_set_multi_LED_mode_slot(1, MAX3010X_SLOT_LED_RED)) return false;
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if(LEDMode > MAX3010X_LED_MODE_RED_ONLY)
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if(!MAX3010X_set_multi_LED_mode_slot(2, MAX3010X_SLOT_LED_IR)) return false;
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if(!MAX3010X_clear_FIFO()) return false;
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return true;
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}
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@ -46,6 +46,13 @@ typedef enum MAX3010X_ADC_Range
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MAX3010X_ADC_RANGE_16384 = 0x03,
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} MAX3010X_ADC_Range_e;
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typedef enum MAX3010X_SLOT_LED
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{
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MAX3010X_SLOT_LED_NONE = 0x00,
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MAX3010X_SLOT_LED_RED = 0x01,
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MAX3010X_SLOT_LED_IR = 0x02,
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} MAX3010X_SLOT_LED_e;
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/**
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* @brief Initializes the MAX3010X sensor. This must be called before any other API functions.
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@ -58,10 +65,30 @@ bool MAX3010X_init(void);
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bool MAX3010X_soft_reset(void);
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bool MAX3010X_shutdown(void);
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bool MAX3010X_wakeup(void);
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bool MAX3010X_set_FIFO_average(MAX3010X_Sample_Average_e sampleAverage);
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bool MAX3010X_enable_FIFO_rollover(bool enabled);
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bool MAX3010X_set_LED_mode(MAX3010X_LED_Mode_e LEDMode);
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bool MAX3010X_set_ADC_range(MAX3010X_ADC_Range_e ADCRange);
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bool MAX3010X_set_sample_rate(MAX3010X_Sample_Rate_e sampleRate);
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bool MAX3010X_set_pulse_width(MAX3010X_LED_Pulse_Width_e LEDPulseWidth);
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bool MAX3010X_set_pulse_amplitude_red(uint8_t powerLevel);
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bool MAX3010X_set_pulse_amplitude_IR(uint8_t powerLevel);
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bool MAX3010X_set_multi_LED_mode_slot(uint8_t slot, MAX3010X_SLOT_LED_e slotLED);
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bool MAX3010X_clear_FIFO(void);
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bool MAX3010X_configure(uint8_t powerLevel, MAX3010X_Sample_Average_e sampleAverage, MAX3010X_LED_Mode_e LEDMode, MAX3010X_Sample_Rate_e sampleRate, MAX3010X_LED_Pulse_Width_e LEDPulseWidth, MAX3010X_ADC_Range_e ADCRange);
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#endif //MAX3010X_H
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