accelR8.c File Reference

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Detailed Description

Main accelR8 code

Author:

Jörgen Birkler (birkler@yahoo.com)

Defines

• #define TIMER_READ_ADC_TIMEOUT_SHORT
• #define TIMER_READ_ADC_TIMEOUT_LONG
• #define TIMER_SWITCH_OFF_ON_TIMEOUT
• #define TIMER_UPDATE_DISPLAY_TIMEOUT
• #define TIMER_TIMER2_STABILIZE_TIME
• #define uart_printf(format, args...)

Enumerations

• enum AccelR8_Mode_t {
    AccelR8_Mode_Off,
    AccelR8_Mode_FIRST,
    AccelR8_Mode_Measure,
    AccelR8_Mode_LateralAcceleration,
    AccelR8_Mode_Calibrate,
    AccelR8_Mode_SwitchOff,
    AccelR8_Mode_LAST
  }

Functions

• const ADXL_CalibrationInfo_t
  EEPROM_SavedCalibrationData __attribute__ ((section(".eeprom")))=ADXL_CALIBRATION_INITIAL_VALUE
• void UpdateLCDChargePumpTimer (void)
• void CPU_Clock_Allocate (void)
• void CPU_Clock_Free (void)
• unsigned char CPU_Clock_IsAllocated (void)
• int8_t ADC_GetMUX (void)
• void uart_sendchar (char data, void *not_used)
• void Mode_Off_Enter (void)
• void Mode_Off_Leave (void)
• void Mode_NewMode (AccelR8_Mode_t newMode)
• void UpdateDisplay (void)
• int main (void)
• void sendchar (char c)
• void dbg_sendchar (char data, void *not_used)
• INTERRUPT (SIG_ADC)
• INTERRUPT (SIG_INTERRUPT1)

Variables

• volatile Voltage_t LCD_Voltage_Current
• volatile Voltage_t LCD_Voltage_Set
• Milliseconds_t LCD_ChargePumpTimer
• Voltage_t voltage
• volatile unsigned int ADC_ReadValue
• AccelR8_Mode_t currentMode
• unsigned long int z_offset
• unsigned long int current_acceleration
• signed long int horiz_speed
• volatile int8_t adc_mux
• volatile unsigned char cpu_clock_allocs

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Define Documentation

#define TIMER_READ_ADC_TIMEOUT_SHORT

Period between LCD bias voltage measurements.

#define TIMER_SWITCH_OFF_ON_TIMEOUT

Timeout if on before switch off.

#define TIMER_TIMER2_STABILIZE_TIME

Time it takes for the OSC2 TIMER2 oscillator to stabilize. 1s according to spec.

#define uart_printf (  format, args...   )

Wrapper for uart printfs.

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Function Documentation

void CPU_Clock_Allocate (  void   )  [static]

Allocate CPU clock Do NOT power save, go to idle, keep clock running

void CPU_Clock_Free (  void   )  [static]

Free the CPU clock so that powersave is possible.

unsigned char CPU_Clock_IsAllocated (  void   )  [static]

Status of CPU clock allocations. !0 if CPU clock is allocated.

int8_t ADC_GetMUX (  void   )  [static]

Get the current MUX setting. 0..7 if ADC coversion is complete. -1 if no conversion is complete.

void uart_sendchar (  char  data, void *  not_used )

Da uart send char used by uart_printf.

int main (  void   )

Da main program Todo: Keep track of on/off state User interface Handle RESET and MODE key presses __naked__ attribute

void sendchar (  char  c  )

External sendchar function, for example UART.

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Variable Documentation

volatile Voltage_t LCD_Voltage_Current [static]

Current LCD bias voltage in mV.

volatile Voltage_t LCD_Voltage_Set [static]

Desired LCD bias voltage in mV.

Milliseconds_t LCD_ChargePumpTimer [static]

Current charge pump timer.

Voltage_t voltage [static]

Latest voltage read from ADC.

volatile unsigned int ADC_ReadValue [static]

Latest value read from ADC.

volatile unsigned char cpu_clock_allocs [static]

CPU Clock//////////////////Number of CPU clock allocations.

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