The Internet Power Line Adapter - University of Queensland

Home Automation, Power Lines and the Internet Quenten Alick
}
}
if(UseWTI) {
TransmitPacket(USE_WTI);
} else {
TransmitPacket(0);
}
}
void ReadCommand( uint8 command,
near uint8* rawData, /* O: page 1 data from NIC */
uint8* length ) /* O: length of data from NIC */
{
StartErrorTimer();
while((ISRstate!=ISR_IDLE) &&
(ISRstate!=ISR_ATTN)) {
TestErrorTimer(); /* test error timer and restart if
expired */
}
NIC_CS = LOW;
ISRstate = ISR_RCV_LEN;
transBfr.buf = rawData;
transBfr.index = 0; /* initialize index */
WriteToSPI(command);
StartErrorTimer();
while(ISRstate != ISR_IDLE) {
TestErrorTimer();
}
*length = transBfr.len;
NIC_CS = HIGH;
}
void riteCommand( uint8 command,
near uint8* rawData, /* I: page 1 data to NIC */
uint8 length ) /* I: length of data to NIC */
{
StartErrorTimer();
while((ISRstate!=ISR_IDLE) &&
(ISRstate!=ISR_ATTN)) {
TestErrorTimer();
}
NIC_CS = LOW;
ISRstate = ISR_XMIT_LEN;
transBfr.buf = rawData;
transBfr.len = length;
transBfr.index = 0;
WriteToSPI(command);
StartErrorTimer();
while(ISRstate != ISR_IDLE) {
- 60 -
TestErrorTimer(); /* test error timer and restart
if expired */
}
NIC_CS = HIGH;
}
/*
* Original Author: Stan JK
*
* Modified by: Tony Truong
*
* File: stamdard.h
*/
typedef unsigned char uint8;
typedef struct
{
uint8 LSB;
uint8 MSB;
} uint16;
typedef struct /* allows 8 boolean flags to coexist in
single uint8 */
{
uint8 b0 : 1;
uint8 b1 : 1;
uint8 b2 : 1;
uint8 b3 : 1;
uint8 b4 : 1;
uint8 b5 : 1;
uint8 b6 : 1;
uint8 b7 : 1;
} booleans;
typedef uint8 boolean;
#define FALSE 0
#define TRUE 1
#define INVALID 0
#define VALID 1
#define OFF 0
#define ON 1
#define LOW 0
#define HIGH 1
#define NULL 0
#define DisableInterrupts() _asm("\tsei\n")
#define EnableInterrupts() _asm("\tcli\n")
#define ResetStackPtr() _asm("\trsp\n")