The Internet Power Line Adapter - University of Queensland

Home Automation, Power Lines and the Internet Quenten Alick
if (errno == 11) {
fprintf (stdout, "this error ok, data not there yet.
implementation for retries / timeout not done!\n");
exit(1);
}
else {
fprintf (stdout, "read error!\tbytes read: %d\terrno:
%d\n", cnt, errno);
}
}
printf("receive: -%p-\n", recvbuf);
/*
* delay to prevent overruns, will have to be
implemented with ack - checking OR flag in hc11
*/
for(i = 0; i < 500000; i++)
;
/*sleep(1);*/
}
}
/*
* Original Author: Stan JK
*
* Modified by: Tony Truong
*
* File: mod_main.c
*/
#define _mod_main_owner
#include "standard.h"
void main( void )
{
DisableInterrupts();
ResetStackPtr();
/*
* initialize all ports, set all directions as inputs and
* clear all control registers
*/
PORTB = 0xff;
PORTC = 0;
PORTD = 0x20; /* keep SS* off */
DDRA = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
SPCR = 0;
SCCR1 = 0;
SCCR2 = 0;
RST = LOW;
COPCR = 0; /* Disable watchdog */
DDRC = PORTCdirection;
DDRD = PORTDdirection;
/*
* set master mode
* set SCK polarity at logic 1
* set SCK phase to edge after 1 st to latch
* set SPI clock rate
* and enable SPI
*/
SPCR = MSTR | CPOL | CPHA | SPR | SPE;
NIC_CS = HIGH;
EEROM_CS = HIGH;
RST = HIGH;
- 51 -
/*
* wait for NIC to complete its internal reset
* wait for approx 51.2 msec.
*/
*i = GetLowResTimeByte() + 100;
while(*i != GetLowResTimeByte()) ;
/*
* Initialize utilities/layers and execute application:
*/
InitializeTimer();
EnableInterrupts();
InitializeSerial();
/*
* wait for initailize to compete
*/
if(InitializeEval()) {
While(1)
UpdateEval();
}
}
/*
* Original Author: Stan JK
*
* Modified and adapted for the MCHC11A1 by: Tony
Truong
*
* File: evaluate.c
*/
#include "standard.h"
/*
* transmitter device to RS232 host command functionIDs
*/
#define ABORT_CMD ('A')
#define DELAY_CMD ('D')
#define NIC_ID_CMD ('N')
#define PROGRESS_CMD ('P')
#define QUERY_CMD ('Q')
#define RUNNING_CMD ('R')
#define STATS_CMD ('S')
#define TRANS_START_CMD ('T')
/*
* transmitter device to remote device info field headers
*/
#define SETUP_PKT 0x01
#define LOOPBACK_PKT 0x02
#define COUNT_RESP_PKT 0x03
#define RESET_COUNT 0x04
#define GET_COUNT_PKT 0x05
#define TRANS_PKT 0x0f
/*
* timer value based on 131msec/tick
*/
#define TWO_SECS 14
void RecdRunningCmd(void);
void RecdSetupPkt(void);
void XmitOriginal(void);
void StatsToHost(boolean recdPkts);
boolean ProcessTransmitEnd(boolean forced);
void ProcessValidPacket(void);
booleans EV;
booleans EV2;