Echo Driver Configuration
ECHO_AFF_VALUE
Description: Specifies the average filter cutoff frequency when ECHO_AFFC_VALUEis set to 1.
Values:
0 = 0.5 kHz
1 = 1 kHz
2 = 2 kHz
3 = 4 kHz
#define ECHO_AFF_VALUE 0
Example:
ECHO_EDD_VALUE
Description: Specifies the value of the envelope detector decay rate.
Values:
0 = slow decay
1 = fast decay
#define ECHO_EDD_VALUE 0
Example:
ECHO_IFLA_VALUE
Description: Specifies the value of thief level attenuation bit.
Values:
0 = no attenuations
1 = 20 db attenuation
#define ECHO_IFLA_VALUE 0
Example:
11.3 Optional I/O Pins
ECHO_RSSIC
Description: This defines the I/O pin used control Echo’s RSSIC pin.
Values:
Any I/O pin configurable as an output can be used. Use the naming convention specified
in the CodeWarrior header file.
#define ECHO_RSSIC PTED_PTED2 /* Define pin used for RSSIC */
Example:
ECHO_RSSIC_DDR
Description: This defines the data direction bit for the I/O pin used control Echo’s RSSIC pin.
Values:
Any I/O pin configurable as an output can be used. Use the naming convention specified
in the CodeWarrior header file.
#define ECHO_RSSIC_DDR PTEDD_PTEDD2
Example:
Software Drivers for MC33696, Rev. 1
Freescale Semiconductor
37
FREESCALE [ Freescale ]
