Oscillator Accuracy (in PPM)

Enumerations
enum	PPM_CMD {   PPM_CMD_READ_FEATURES = 0x01,   PPM_CMD_READ_VAL = 0x02,   PPM_CMD_WRITE_VAL = 0x03 }
	Command codes for PPM. More...
enum	PPM_RSP {   PPM_RSP_READ_FEATURES_OK = 0x01,   PPM_RSP_READ_VAL_OK = 0x02,   PPM_RSP_WRITE_VAL_OK = 0x03 }
	: Response codes from PPM More...

Detailed Description

• PPM is the feature to read and write PPM accuracy
• Errors for PPM are returned as TOA_RSP_ERROR_UNSUPPORTED or TOA_RSP_ERROR_PARAMETERS errors There is no enum defined in our code for PPM values. The mapping is as follows:

  Value	PPM
  0x00	PPM reporting is not supported
  0x06	Crystal oscillator 500 PPM accuracy.
  0x07	Crystal oscillator 250 PPM accuracy.
  0x08	Crystal oscillator 150 PPM accuracy.
  0x09	Crystal oscillator 100 PPM accuracy.
  0x0a	Crystal oscillator 75 PPM accuracy.
  0x0b	Crystal oscillator 50 PPM accuracy.
  0x0c	Crystal oscillator 30 PPM accuracy.
  0x0d	Crystal oscillator 20 PPM accuracy.

Enumeration Type Documentation

enum PPM_CMD

Command codes for PPM.

Enumerator
PPM_CMD_READ_FEATURES	PPM Read supported features
PPM_CMD_READ_VAL	PPM Read current value
PPM_CMD_WRITE_VAL	PPM Write new value (1 byte)

enum PPM_RSP

: Response codes from PPM

Enumerator
PPM_RSP_READ_FEATURES_OK	Parameter is a 1 byte a bitfield with bit 0 indicating read supported and bit 1 indicating write supported
PPM_RSP_READ_VAL_OK	Parameter is the current PPM value. It is a 1 byte value
PPM_RSP_WRITE_VAL_OK	Parameter is the current PPM value. It is a 1 byte value