ARD2  1.00 for Rev B. Hardware
Airbag Reference Demonstrator using MPC5604P
Defines | Functions | Variables
MMA68xx_Diag.h File Reference

Drivers for central accelerometer. More...

Go to the source code of this file.

Defines

#define TRUE   (1u)
#define CLEAR   (0u)
#define BITS_IN_NIBBLE   (4u)
#define BITS_IN_BYTE   (8u)
#define BYTES_IN_16   (2u)
#define BYTES_IN_32   (4u)
#define BIT_DEFINITION
#define BIT0   (1u << 0u)
#define BIT1   (1u << 1u)
#define BIT2   (1u << 2u)
#define BIT3   (1u << 3u)
#define BIT4   (1u << 4u)
#define BIT5   (1u << 5u)
#define BIT6   (1u << 6u)
#define BIT7   (1u << 7u)
#define BIT8   (1u << 8u)
#define BIT9   (1u << 9u)
#define BIT10   (1u << 10)
#define BIT11   (1u << 11)
#define BIT12   (1u << 12)
#define BIT13   (1u << 13)
#define BIT14   (1u << 14)
#define BIT15   (1u << 15)
#define BIT16   (1u << 16)
#define BIT17   (1u << 17)
#define BIT18   (1u << 18)
#define BIT19   (1u << 19)
#define BIT20   (1u << 20)
#define BIT21   (1u << 21)
#define BIT22   (1u << 22)
#define BIT23   (1u << 23)
#define BIT24   (1u << 24)
#define BIT25   (1u << 25)
#define BIT26   (1u << 26)
#define BIT27   (1u << 27)
#define BIT28   (1u << 28)
#define BIT29   (1u << 29)
#define BIT30   (1u << 30)
#define BIT31   (1u << 31)
#define RAW_ACCEL_MODE   7u
#define OC_ACCEL_MODE   3u
#define CA_TEST_SAMPLES_AMOUNT   256u
#define CA_TEST_RAW_LIMIT_LO   1988u
#define CA_TEST_RAW_LIMIT_HI   2108u
#define CA_TEST_RAW_LIMIT_HYST   5u
#define CA_TEST_OC_LIMIT_LO   2047u
#define CA_TEST_OC_LIMIT_HI   2049u
#define CA_TEST_SELF_LIMIT_LO   442u
#define CA_TEST_SELF_LIMIT_HI   663u
#define CA_TEST_SELF_RAW_VS_OC_LIMIT   5u
#define CA_TEST_SELF_CROSS_AXIS_LIMIT   10u
#define STATUS_CA_FAILED   (BIT27 | BIT26)
#define STATUS_CA_RAW_X_FAILED   0x00000001
#define STATUS_CA_RAW_Y_FAILED   0x00000002
#define STATUS_CA_RAW_SELF_X_FAILED   0x00000004
#define STATUS_CA_RAW_SELF_Y_FAILED   0x00000008
#define STATUS_CA_RAW_HYST_X_FAILED   0x00000010
#define STATUS_CA_RAW_HYST_Y_FAILED   0x00000020
#define STATUS_CA_OC_X_FAILED   0x00000040
#define STATUS_CA_OC_Y_FAILED   0x00000080
#define STATUS_CA_OC_SELF_X_FAILED   0x00000100
#define STATUS_CA_OC_SELF_Y_FAILED   0x00000200
#define STATUS_CA_OC_HYST_X_FAILED   0x00000400
#define STATUS_CA_OC_HYST_Y_FAILED   0x00000800
#define N_ELEMENTS(X)   (sizeof(X)/sizeof(*(X)))

Functions

uint32_t u32fnMMA6800ReadAccelSum (const uint8_t u8Axis, const uint8_t u8AccelMode, uint32_t *pu32Destination, const uint8_t cu8Accel)
 Performs the reading and the sum of a CA_TEST_SAMPLES_AMOUNT acceleration data collection. This sum is used instead of averaging during CA diagnosis.
uint32_t u32fnMMA6800ConfigTest (uint32_t *pu32Destination, const uint16_t *pu16DataToSend, const uint8_t u8Size, const uint8_t u8AccelMode, const uint8_t u8Axis, const uint8_t cu8Accel)
 Performs the configuration of CA plus the acceleration measurements for a dedicated test.
uint32_t u32fnMMA6800PreSelfTest (uint32_t *pu32Destination, const uint16_t *pu16DataToSend, const uint8_t u8Size, const uint8_t cu8AccelMode, const uint8_t cu8Axis, const uint16_t cu16LowLimit, const uint16_t cu16HighLimit, const uint32_t cu32StatusErrCode, const uint8_t cu8Accel)
 Performs the Pre Self test verification (Test1)
uint32_t u32fnMMA6800PowerOnSelfTest (uint32_t *pu32Destination, const uint16_t *pu16DataToSend, const uint16_t *pu16DataToSendCross, const uint8_t u8Size, const uint8_t cu8AccelMode, const uint8_t cu8Axis, const uint32_t cu32StatusErrCode, const uint8_t cu8Accel)
 Performs the Power ON Self test verification (Test2)
uint32_t u32fnMMA6800PostSelfTest (uint32_t *pu32Destination, const uint16_t *pu16DataToSend, const uint8_t u8Size, const uint8_t cu8AccelMode, const uint8_t cu8Axis, const uint32_t cu32StatusErrCode, const uint8_t cu8Accel)
 Performs the Post Self test verification (Test3)

Variables

const uint16_t cau16MMA6800TestSettingsRaw []
const uint16_t cau16MMA6800TestSettingsRawSelfX []
const uint16_t cau16MMA6800TestSettingsRawSelfY []
const uint16_t cau16MMA6800TestSettingsOC []
const uint16_t cau16MMA6800TestSettingsOCSelfX []
const uint16_t cau16MMA6800TestSettingsOCSelfY []
const uint32_t cau32MMA6800ErrorCodeX []
const uint32_t cau32MMA6800ErrorCodeY []
const uint8_t cu8SizeofTestSettings
const uint8_t cu8SizeofTestAmount

Detailed Description

Drivers for central accelerometer.

Copyright (c) 2011 Freescale Semiconductor Freescale Confidential Proprietary

Author:
Freescale Semiconductor
SASD Automotive
R11515
R54967
Version:
Date:
Warning:
(If needed)

History:

Function Documentation

uint32_t u32fnMMA6800ConfigTest ( uint32_t *  pu32Destination,
const uint16_t *  pu16DataToSend,
const uint8_t  u8Size,
const uint8_t  u8AccelMode,
const uint8_t  u8Axis,
const uint8_t  cu8Accel 
)

Performs the configuration of CA plus the acceleration measurements for a dedicated test.

Parameters:
pu32Destination,:Array of CA_TEST_SAMPLES_AMOUNT accelerations
pu16DataToSend,:Array of settings to apply to CA to perform test
u8Size,:Size of the array of settings
u8AccelMode,:Raw or Offset Canceled (OC)
u8Axis,:Axis along which accelerations are taken
cu8Accel,:FSL Accelerometer (MESQUITE or SYCAMORE)
Returns:
Status: Clear when no error found. STATUS_CA_FAILED if at least one among the data collection is not a proper acceleration data. MMA6800_ERROR_ACCEL if accelerometer required is not MESQUITE or SYCAMORE. MMA6800_INVALID_PARITY if invalid parity is found.
uint32_t u32fnMMA6800PostSelfTest ( uint32_t *  pu32Destination,
const uint16_t *  pu16DataToSend,
const uint8_t  u8Size,
const uint8_t  cu8AccelMode,
const uint8_t  cu8Axis,
const uint32_t  cu32StatusErrCode,
const uint8_t  cu8Accel 
)

Performs the Post Self test verification (Test3)

Parameters:
pu32Destination,:Array of CA_TEST_SAMPLES_AMOUNT accelerations
pu16DataToSend,:Array of settings to apply to CA to perform test
u8Size,:Size of the array of settings
cu8AccelMode,:Raw or Offset Canceled (OC)
cu8Axis,:Axis along which accelerations are taken
cu32StatusErrCode,:Error status code
cu8Accel,:FSL Accelerometer (MESQUITE or SYCAMORE)
Returns:
Status: Clear when no error found, cu32StatusErrCode otherwise. cu32StatusErrCode is : STATUS_CA_RAW_HYST_X_FAILED for Raw data and X axis test3 STATUS_CA_OC_HYST_X_FAILED for OC data and X axis test3 STATUS_CA_RAW_HYST_Y_FAILED for Raw data and Y axis test3 STATUS_CA_OC_HYST_Y_FAILED for OC data and Y axis test3
uint32_t u32fnMMA6800PowerOnSelfTest ( uint32_t *  pu32Destination,
const uint16_t *  pu16DataToSend,
const uint16_t *  pu16DataToSendCross,
const uint8_t  u8Size,
const uint8_t  cu8AccelMode,
const uint8_t  cu8Axis,
const uint32_t  cu32StatusErrCode,
const uint8_t  cu8Accel 
)

Performs the Power ON Self test verification (Test2)

Parameters:
pu32Destination,:Array of CA_TEST_SAMPLES_AMOUNT accelerations
pu16DataToSend,:Array of settings to apply to CA to perform test along main axis
pu16DataToSendCross,:Array of settings to apply to CA to perform test \ along cross axis
u8Size,:Size of the array of settings
cu8AccelMode,:Raw or Offset Canceled (OC)
cu8Axis,:Axis along which accelerations are taken (main axis)
cu32StatusErrCode,:Error status code
cu8Accel,:FSL Accelerometer (MESQUITE or SYCAMORE)
Returns:
Status: Clear when no error found, cu32StatusErrCode otherwise. cu32StatusErrCode is : STATUS_CA_RAW_SELF_X_FAILED for Raw data and X axis test2 STATUS_CA_OC_SELF_X_FAILED for OC data and X axis test2 STATUS_CA_RAW_SELF_Y_FAILED for Raw data and Y axis test2 STATUS_CA_OC_SELF_Y_FAILED for OC data and Y axis test2
uint32_t u32fnMMA6800PreSelfTest ( uint32_t *  pu32Destination,
const uint16_t *  pu16DataToSend,
const uint8_t  u8Size,
const uint8_t  cu8AccelMode,
const uint8_t  cu8Axis,
const uint16_t  cu16LowLimit,
const uint16_t  cu16HighLimit,
const uint32_t  cu32StatusErrCode,
const uint8_t  cu8Accel 
)

Performs the Pre Self test verification (Test1)

Parameters:
pu32Destination,:Array of CA_TEST_SAMPLES_AMOUNT accelerations
pu16DataToSend,:Array of settings to apply to CA to perform test
u8Size,:Size of the array of settings
cu8AccelMode,:Raw or Offset Canceled (OC)
cu8Axis,:Axis along which accelerations are taken
cu16LowLimit,:Low limit for test
cu16HighLimit,:High limit for test
cu32StatusErrCode,:Error status code
cu8Accel,:FSL Accelerometer (MESQUITE or SYCAMORE)
Returns:
Status: Clear when no error found, cu32StatusErrCode otherwise. cu32StatusErrCode is : STATUS_CA_RAW_X_FAILED for Raw data and X axis test1 STATUS_CA_OC_X_FAILED for OC data and X axis test1 STATUS_CA_RAW_Y_FAILED for Raw data and Y axis test1 STATUS_CA_OC_Y_FAILED for OC data and Y axis test1
uint32_t u32fnMMA6800ReadAccelSum ( const uint8_t  u8Axis,
const uint8_t  u8AccelMode,
uint32_t *  pu32Destination,
const uint8_t  cu8Accel 
)

Performs the reading and the sum of a CA_TEST_SAMPLES_AMOUNT acceleration data collection. This sum is used instead of averaging during CA diagnosis.

Parameters:
u8Axis,:Axis to perform the acceleration readings
u8AccelMode,:Acceleration mode to perform the accel readings
pu32Destination,:Sum of CA_TEST_SAMPLES_AMOUNT consecutive acceleration readings
cu8Accel,:FSL Accelerometer (MESQUITE or SYCAMORE)
Returns:
Status: Clear when no error found. STATUS_CA_FAILED if at least one among the data collection is not a proper acceleration data. MMA6800_ERROR_ACCEL if accelerometer required is not MESQUITE or SYCAMORE. MMA6800_INVALID_PARITY if invalid parity is found.