//----------------------------------------------------------------------
// SUBROUTINE - owBranchFirst
//
// This routine is used like owFirst but for devices on a branch.
//
// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to
// indicate the symbolic port number.
// 'BrSN' - This is the DS2409 device branch
// 'AlarmD' - True or False, to do Alarm search or false for regular search
// 'FirMain' - True then search main branch, False search Aux. branch
//
// Returns: TRUE (1) : when a 1-Wire device was found and it's
// Serial Number placed in the global SerialNum
// FALSE (0): There are no devices on the 1-Wire Net.
//
int owBranchFirst(int portnum, uchar BrSN[8], int AlarmD, int FirMain)
{
int smart_main = 4;
int smart_aux = 2;
int numextra = 2;
uchar extra[3];
if(FirMain)
{
if(SetSwitch1F(portnum, &BrSN[0], smart_main, numextra, extra, TRUE))
if(extra[2] != 0xFF)
return owFirst(portnum,FALSE, AlarmD);
}
else
{
if(SetSwitch1F(portnum, &BrSN[0], smart_aux, numextra, extra, TRUE))
if(extra[2] != 0xFF)
return owFirst(portnum,FALSE, AlarmD);
}
return FALSE;
}
//----------------------------------------------------------------------
// Family 0x10 Demo
//
void main(void)
{
int temp;
int sign;
BYTE i;
//----------------------------------------
ADCON1 = 0x07; // PortB digital
bTRD6 = 1; // RD6 = Serial Input
bTRD7 = 0; // RD7 = Serial Output
bLD7 = 1;
printf("\nFamily 0x10 Demo\n%");
////////////////////////////////////////////////////////////
// Initialise the OneWire network (bus)
// attempt to acquire the 1-Wire Nets
if (!owAcquire(0, NULL)) {
printf("Acquire failed.\n%");
while(1)
;
}
////////////////////////////////////////////////////////////
// Let's set the alarmtemps of all devices on the bus.
// To demonstrate this, we write a low alarmtemp of 19
// and a high alarmtemp of 21 to all devices.
// Finally we copy the alarmtemps to non-volatile EEPROM.
printf("\nStart - Set AlarmTemperatures.\n%");
// Reset the devices
owTouchReset(0);
// Address all devices on the net
owWriteByte(0, OW_SKIPROM);
// Use the WriteScratchpad command to set AlarmTemps
owWriteByte(0, OW_WRITESCRATCHPAD);
owWriteByte(0, 19); // Valid RoomTemperature
owWriteByte(0, 21); // 19 <= Temp < 21
printf("End - Set AlarmTemperatures.\n%");
// Set alarmtemps done
// Copy the temps to EEPROM
printf("\nStart - Write AlarmTemperatures to EEPROM.\n%");
// Reset the devices
owTouchReset(0);
// Address all devices on the net
owWriteByte(0, OW_SKIPROM);
// send the CopyScratchpad command to copy the AlarmTemps to EEPROM
// If the bus supports Strong PullUp, we use it (because
// there might be parasite powered devices on this bus).
if(owHasPowerDelivery(0)) {
printf("The bus has a Strong PullUp\n%");
owWriteBytePower(0, OW_COPYSCRATCHPAD);
// Eeprom update takes 10 milliseconds max. 11ms is safer
Wait(11);
// turn off the strong pull-up
owLevel(0, MODE_NORMAL);
} else {
printf("The bus has NO Strong PullUp\n%");
owWriteByte(0, OW_COPYSCRATCHPAD);
// Eeprom update takes 10 milliseconds max. 11ms is safer
Wait(11);
}
printf("End - Write AlarmTemperatures to EEPROM.\n%");
// Copy the temps to EEPROM done
while(1) {
////////////////////////////////////////////////////////////
// We do a temp conversion on all DS18S20's
printf("\nStart - TemperatureConversions\n%");
// Reset the devices
owTouchReset(0);
// Address all devices on this net
owWriteByte(0, OW_SKIPROM);
// Send the convert command and start power delivery if available.
// Note that we use a different way here to determine
// Strong PullUp capability.
if(owWriteBytePower(0, OW_CONVERTT)) {
printf("We are using a Strong PullUp.\n%");
} else {
printf("No Strong PullUp configured.\n%");
owWriteByte(0, OW_CONVERTT);
}
// Coversion takes 750 milliseconds max. 751ms is safer
Wait(751);
// turn off the 1-Wire Net strong pull-up
owLevel(0, MODE_NORMAL);
printf("End - TemperatureConversions\n%");
////////////////////////////////////////////////////////////
// We will now demonstrate an alarmsearch
printf("\nStart - Find devices in alarmstate\n%");
// Find the devices with temp < 19 or temp >= 21
if(!owFirst(0, TRUE, TRUE)) {
printf("No devices in AlarmState found.\n%");
} else {
do {
printf("Device in AlarmState found: 0x%02X%02X%02X%02X%02X%02X%02X%02X\n%",
owNetCurrent.SerialNum[7],
owNetCurrent.SerialNum[6],
owNetCurrent.SerialNum[5],
owNetCurrent.SerialNum[4],
owNetCurrent.SerialNum[3],
owNetCurrent.SerialNum[2],
owNetCurrent.SerialNum[1],
owNetCurrent.SerialNum[0]);
} while(owNext(0, TRUE, TRUE));
}
printf("End - Find devices in alarmstate\n%");
////////////////////////////////////////////////////////////
// We will now demonstrate a normal search. For
// every device found, it's temperature is retrieved.
printf("\nStart - Find devices and get their temperatures.\n%");
if(!owFirst(0, TRUE, FALSE)) {
printf("No devices found.\n%");
} else {
do {
printf("Device found: 0x%02X%02X%02X%02X%02X%02X%02X%02X%",
owNetCurrent.SerialNum[7],
owNetCurrent.SerialNum[6],
owNetCurrent.SerialNum[5],
owNetCurrent.SerialNum[4],
owNetCurrent.SerialNum[3],
owNetCurrent.SerialNum[2],
owNetCurrent.SerialNum[1],
owNetCurrent.SerialNum[0]);
// Init the crc
setcrc8(0, 0);
// Read the device's memory
owWriteByte(0, OW_READSCRATCHPAD);
for(i = 0; i < SCRATCHPAD_SIZE; i++) {
ScratchPad[i] = owReadByte(0);
docrc8(0, ScratchPad[i]);
}
// Check the CRC
if(owNetCurrent.utilcrc8 != 0) {
printf(", crc is NOT OK.\n%");
} else {
// We don't want to use float's
temp = ((int)ScratchPad[SCRATCHPAD_TEMPERATUREMSB] << 8) |
(int)ScratchPad[SCRATCHPAD_TEMPERATURELSB];
if(temp < 0) {
temp = -temp;
sign = '-';
} else if(temp == 0) {
sign = ' ';
} else {
sign = '+';
}
printf(", Temperature is %c%d.%d degrees\n%",
sign,
(temp >> 1),
(temp & 0x01) ? 5 : 0);
}
} while(owNext(0, TRUE, FALSE));
}
printf("End - Find devices and get their temperatures.\n%");
////////////////////////////////////////////////////////////
Wait(1); // Just a convenient way to set a breakpoint
}
}
//---------------------------------------------------------------------
// Finds new SHA iButtons on the given port. Uses 'triple-buffer'
// technique to insure it only finds 'new' buttons.
//
// 'portnum' - number 0 to MAX_PORTNUM-1. This number is provided to
// indicate the symbolic port number.
// 'devAN' - pointer to buffer for device address
// 'resetList' - if TRUE, final buffer is cleared.
//
// Returns: TRUE, found a new SHA iButton.
// FALSE, no new buttons are present.
//
SMALLINT FindNewSHA(int portnum, uchar* devAN, SMALLINT resetList)
{
uchar ROM[8];
uchar tempList[MAX_SHA_IBUTTONS] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
int tempIndex = 0, i;
SMALLINT hasDevices = TRUE, completeList = FALSE;
// force back to standard speed
if(MODE_NORMAL != owSpeed(portnum,MODE_NORMAL))
{
OWERROR(OWERROR_LEVEL_FAILED);
return FALSE;
}
in_overdrive[portnum&0x0FF] = FALSE;
// get first device in list with the specified family
if(needsFirst || resetList)
{
hasDevices = owFirst(portnum, TRUE, FALSE);
completeList = TRUE;
if(resetList)
listIndex = 0;
}
else
{
hasDevices = owNext(portnum, TRUE, FALSE);
}
if(hasDevices)
{
do
{
// verify correct device type
owSerialNum(portnum, ROM, TRUE);
tempList[tempIndex++] = ROM[7];
// compare crc to complete list of ROMs
for(i=0; i<listIndex; i++)
{
if(ROM[7] == ListOfKnownSHA[portnum&0x0FF][i])
break;
}
// found no match;
if(i==listIndex)
{
// check if correct type and not copr_rom
if ((SHA_FAMILY_CODE == (ROM[0] & 0x7F)) ||
(SHA33_FAMILY_CODE == (ROM[0] & 0x7F)))
{
// save the ROM to the return buffer
owSerialNum(portnum,devAN,TRUE);
ListOfKnownSHA[portnum&0x0FF][listIndex++] = devAN[7];
return TRUE;
}
}
}
while(owNext(portnum, TRUE, FALSE));
}
// depleted the list, start over from beginning next time
needsFirst = TRUE;
if(completeList)
{
// known list is triple-buffered, listBuffer is intermediate
// buffer. tempList is the immediate buffer, while
// ListOfKnownSHA is the final buffer.
if( (memcmp(tempList, listBuffer[portnum&0x0FF], MAX_SHA_IBUTTONS)==0) &&
tempIndex == indexBuffer )
{
memcpy(ListOfKnownSHA[portnum&0x0FF], tempList, MAX_SHA_IBUTTONS);
listIndex = tempIndex;
}
else
{
memcpy(listBuffer[portnum&0x0FF], tempList, MAX_SHA_IBUTTONS);
indexBuffer = tempIndex;
}
}
return FALSE;
}
//----------------------------------------------------------------------
// Main Test
//
int main() //short argc, char **argv)
{
int PortNum=1,rslt,i,j,testcnt=0,length;
uchar TempSerialNum[8];
uchar tran_buffer[2000], filename[10];
char return_msg[128];
int portnum=0;
// check for required port name
if (argc != 2)
{
printf("1-Wire Net name required on command line!\n"
" (example: \"COM1\" (Win32 DS2480),\"/dev/cua0\" "
"(Linux DS2480),\"1\" (Win32 TMEX)\n");
exit(1);
}
// attempt to acquire the 1-Wire Net
if (!owAcquire(portnum, argv[1], return_msg))
{
printf("%s",return_msg);
exit(1);
}
// success
printf("%s",return_msg);
//----------------------------------------
// Introduction
printf("\n/---------------------------------------------\n");
printf(" The following is a test excersize of the\n"
" 1-Wire Net public domain library Version 2.00.\n\n"
" This test was run using with 2 DS1920's (DS1820),\n"
" 1 DS1971 (DS2430), and 1 DS1996.\n\n");
//----------------------------------------
// First the devices on the 1-Wire Net
printf("\n/---------------------------------------------\n");
printf("TEST%d: Searching for devices on 1-Wire Net\n",testcnt++);
// find the first device (all devices not just alarming)
rslt = owFirst(portnum,TRUE, FALSE);
while (rslt)
{
// print the Serial Number of the device just found
PrintSerialNum(portnum);
// find the next device
rslt = owNext(portnum,TRUE, FALSE);
}
//----------------------------------------
// now search for the part with a 0x0C family code (DS1996)
printf("\n/---------------------------------------------\n");
printf("TEST%d: Set to find first device with 0x0C family code\n",testcnt++);
owFamilySearchSetup(portnum,0x0C);
// find the first 0x0c device
TempSerialNum[0]=0;
while (TempSerialNum[0]!=0x0c && owNext(portnum,TRUE,FALSE)) {
owSerialNum(portnum,TempSerialNum,TRUE);
}
printf("search result %d\n",TempSerialNum[0]==0x0c);
// print the Serial Number of the device just found
PrintSerialNum(portnum);
//----------------------------------------
// Access a device and read ram
printf("\n/---------------------------------------------\n");
printf("TEST%d: Access the current device and read ram\n",testcnt++);
printf("owAccess %d\n",owAccess(portnum));
printf("Read Ram 0xF0: %02X\n",owTouchByte(portnum,0xF0));
printf("Address0 0x00: %02X\n",owTouchByte(portnum,0x00));
printf("Address1 0x00: %02X\n",owTouchByte(portnum,0x00));
printf("Page 0: ");
for (i = 0; i < 32; i++)
printf("%02X ",owTouchByte(portnum,0xFF));
printf("\n");
//----------------------------------------
// Read ram with owBlock
printf("\n/---------------------------------------------\n");
printf("TEST%d: Read ram with owBlock\n",testcnt++);
for (i = 0; i < 32; i++)
tran_buffer[i] = 0xFF;
printf("owBlock %d\n",owBlock(portnum,FALSE,tran_buffer,32));
printf("Page 1: ");
for (i = 0; i < 32; i++)
printf("%02X ",tran_buffer[i]);
printf("\n");
//----------------------------------------
// Write a packet in each page of DS1996
printf("\n/---------------------------------------------\n");
printf("TEST%d: Place the DS1996 into overdrive\n",testcnt++);
printf("owOverdriveAccess %d\n",owOverdriveAccess(portnum));
//----------------------------------------
// Write 4 packets with owWritePacketStd
printf("\n/---------------------------------------------\n");
printf("TEST%d: Write 4 packets with owWritePacketStd\n",testcnt++);
for (j = 0; j < 4; j++)
{
for (i = 0; i < 29; i++)
tran_buffer[i] = (uchar)i + j;
printf("Write page %d: %d\n",j,owWritePacketStd(portnum,j,tran_buffer,29,FALSE,FALSE));
for (i = 0; i < 29; i++)
tran_buffer[i] = 0;
length = owReadPacketStd(portnum,TRUE,j,tran_buffer);
printf("Read page %d: %d\n",j,length);
for (i = 0; i < length; i++)
printf("%02X",tran_buffer[i]);
printf("\n");
}
//----------------------------------------
// Write a file to DS1996
printf("\n/---------------------------------------------\n");
printf("TEST%d: Format and write a file (in overdrive)\n",testcnt++);
sprintf(filename,"DEMO");
// set the data to write
for (i = 0; i < 2000; i++)
tran_buffer[i] = i % 255;
printf("Format and write file DEMO.000 %d\n",
owFormatWriteFile(portnum,filename,2000,tran_buffer));
// clear the buffer
for (i = 0; i < 2000; i++)
tran_buffer[i] = 0x55;
printf("Read file DEMO.000 %d\n",owReadFile(portnum,filename,tran_buffer));
// print the data result
for (i = 0; i < 2000; i++)
{
if ((i % 0x20) == 0)
printf("\n%03X ",i);
printf("%02X",tran_buffer[i]);
}
printf("\n");
//----------------------------------------
// Turn off overdrive
printf("\n/---------------------------------------------\n");
printf("TEST%d: Turn off overdrive\n",testcnt++);
printf("Set 1-Wire Net speed to normal %d\n",owSpeed(portnum,MODE_NORMAL));
//----------------------------------------
// Verify a device
printf("\n/---------------------------------------------\n");
printf("TEST%d: Verify the current device\n",testcnt++);
printf("owVerify (normal) %d\n",owVerify(portnum,FALSE));
printf("owVerify (alarm) %d\n",owVerify(portnum,TRUE));
//----------------------------------------
// Skip the first family code found
printf("\n/---------------------------------------------\n");
printf("TEST%d: Skip the first family code found\n",testcnt++);
// find the next device
printf("search result of owFirst %d\n",owFirst(portnum,TRUE, FALSE));
// print the Serial Number of the device just found
PrintSerialNum(portnum);
// skip the first family type found
owSkipFamily(portnum);
printf("owSkipFamily called\n");
// find the next device
printf("search result of owNext %d\n",owNext(portnum,TRUE, FALSE));
// print the Serial Number of the device just found
PrintSerialNum(portnum);
//----------------------------------------
// Find first family code (DS1920) and read temperature
printf("\n/---------------------------------------------\n");
printf("TEST%d: Find first family code (DS1920) and read temperature\n",testcnt++);
// find the next device
printf("search result of owFirst %d\n",owFirst(portnum,TRUE, FALSE));
// print the Serial Number of the device just found
PrintSerialNum(portnum);
// send the convert temperature command
printf("Convert temperature command %02X\n",owTouchByte(portnum,0x44));
// set the 1-Wire Net to strong pull-up
printf("Set power delivery %d\n",owLevel(portnum,MODE_STRONG5));
// sleep for 1 second
msDelay(1000);
// turn off the 1-Wire Net strong pull-up
printf("Disable power delivery %d\n",owLevel(portnum,MODE_NORMAL));
// read the DS1920 temperature value
printf("Access the DS1920 %d\n",owAccess(portnum));
tran_buffer[0] = 0xBE;
tran_buffer[1] = 0xFF;
tran_buffer[2] = 0xFF;
printf("Block to read temperature %d\n",owBlock(portnum,FALSE,tran_buffer,3));
// interpret the result
printf("result: DS1920 temperature read: %d C\n", (tran_buffer[1] |
((int)tran_buffer[2] << 8)) / 2);
//----------------------------------------
// Verify the current device, could also be alarming
printf("\n/---------------------------------------------\n");
printf("TEST%d: Verify the current device, could also be alarming\n",testcnt++);
printf("owVerify (normal) %d\n",owVerify(portnum,FALSE));
printf("owVerify (alarm) %d\n",owVerify(portnum,TRUE));
//----------------------------------------
// Test setting the Serial Number with owSerialNum
printf("\n/---------------------------------------------\n");
printf("TEST%d: Test setting the Serial Number with owSerialNum\n",testcnt++);
// set the Serial Num to 0 to 7
for (i = 0; i < 8; i++)
TempSerialNum[i] = (uchar)i;
owSerialNum(portnum,TempSerialNum,FALSE);
// read back the Serial Number
PrintSerialNum(portnum);
//----------------------------------------
// Verify the current device (should fail, no such device)
printf("\n/---------------------------------------------\n");
printf("TEST%d: Verify the current device (should fail, no such device)\n",testcnt++);
printf("owVerify (normal) %d\n",owVerify(portnum,FALSE));
printf("owVerify (alarm) %d\n",owVerify(portnum,TRUE));
// release the 1-Wire Net
owRelease(portnum,return_msg);
printf("%s",return_msg);
exit(0);
return 0;
}
//----------------------------------------------------------------------
// Main for tstfind
//
void main(void)
{
uchar rslt;
int cnt;
//use port for 1-wire
uchar portnum = ONEWIRE_P;
//initialize I/O port
#if STDOUT_P==0
serial0_init(BAUD9600_TIMER_RELOAD_VALUE);
#else
serial1_init(BAUD9600_TIMER_RELOAD_VALUE);
#endif
printf("Beginning tstfindm\r\n");
// attempt to acquire the 1-Wire Net
if (!owAcquire(portnum,NULL))
{
printf("owAcquire failed\r\n");
while(owHasErrors())
printf(" - Error %d\r\n", owGetErrorNum());
return;
}
//----------------------------------------
// Introduction
printf("\r\n/----------------\r\n");
printf(" All iButtons.\r\n\r\n");
do
{
printf("-- Start\r\n");
cnt = 0;
// find the first device (all devices not just alarming)
rslt = owFirst(portnum, TRUE, FALSE);
while (rslt)
{
// print the device number
cnt++;
printf("(%d) ",cnt);
// get and print the Serial Number of the device just found
DisplaySerialNum(portnum);
// find the next device
rslt = owNext(portnum, TRUE, FALSE);
}
printf("-- End\r\n\r\nPress any key to continue searching\r\n");
rslt = getchar();
//printf("key pressed: %c\r\n",rslt);
}
while (rslt!='q');
// release the 1-Wire Net
owRelease(portnum);
return;
}
//----------------------------------------------------------------------
// Main AlarmSearch Test
//
void main(void)
{
BYTE portnum;
//----------------------------------------
ADCON1 = 0x07; // PortB digital
bTRD6 = 1; // RD6 = Serial Input
bTRD7 = 0; // RD7 = Serial Output
bLD7 = 1;
printf("\nEnumeration (AlarmSearch) test\n%");
// Initialise the OneWire nets and the temperature devices
for(portnum = 0; portnum < MAX_PORTNUM; portnum++) {
// attempt to acquire the 1-Wire Nets
if (!owAcquire(portnum,NULL)) {
printf("Acquire failed for OneWire net %d.\n%", portnum);
} else {
// Reset the devices
owTouchReset(portnum);
// Address all devices on this net
owWriteByte(portnum, OW_SKIPROM);
// send the WriteScratchpad command to set AlarmTemps
owWriteByte(portnum, OW_WRITESCRATCHPAD);
owWriteByte(portnum, 19); // Valid RoomTemperature
owWriteByte(portnum, 21); // 19 <= Temp < 21
}
}
while(1) {
// Do a temp conversion on all DS18S20's on all nets simultanously
for(portnum = 0; portnum < MAX_PORTNUM; portnum++) {
// Reset the devices
owTouchReset(portnum);
// Address all devices on this net
owWriteByte(portnum, OW_SKIPROM);
// send the convert command and start power delivery
if(!owWriteBytePower(portnum, OW_CONVERTT)) {
printf("\nNo Strong PullUp on net %d. Trying without SPU.\n%", portnum);
owWriteByte(portnum, OW_CONVERTT);
}
}
// Conversion takes 750 milliseconds max. Safer is 751ms
Wait(751);
// turn off the 1-Wire Net strong pull-up
for(portnum = 0; portnum < MAX_PORTNUM; portnum++) {
owLevel(portnum, MODE_NORMAL);
}
for(portnum = 0; portnum < MAX_PORTNUM; portnum++) {
// Find the device(s) in AlarmState
printf("\nEnumeration for net %d.\n%", portnum);
if(!owFirst(portnum, TRUE, TRUE)) {
printf("No devices in AlarmState found on this net.\n%");
} else {
do {
printf("Device in AlarmState found: 0x%02X%02X%02X%02X%02X%02X%02X%02X\n%",
owNetCurrent.SerialNum[7],
owNetCurrent.SerialNum[6],
owNetCurrent.SerialNum[5],
owNetCurrent.SerialNum[4],
owNetCurrent.SerialNum[3],
owNetCurrent.SerialNum[2],
owNetCurrent.SerialNum[1],
owNetCurrent.SerialNum[0]);
} while(owNext(portnum, TRUE, TRUE));
}
}
Wait(10); // Just a convenient way to set a breakpoint
}
}
//----------------------------------------------------------------------
// Main for tstfind
//
int main(int argc, char **argv)
{
int rslt,cnt;
int portnum=0;
uchar SNum[8];
// check for required port name
if (argc != 2)
{
printf("1-Wire Net name required on command line!\n"
" (example: \"COM1\" (Win32 DS2480),\"/dev/cua0\" "
"(Linux DS2480),\"{1,5}\" (Win32 TMEX)\n");
exit(1);
}
// attempt to acquire the 1-Wire Net
if((portnum = owAcquireEx(argv[1])) < 0)
{
OWERROR_DUMP(stdout);
exit(1);
}
// success
printf("Port opened: %s\n",argv[1]);
//----------------------------------------
// Introduction
printf("\n/---------------------------------------------\n");
printf(" Loop to find all iButton on 1-Wire Net.\n\n");
do
{
printf("-------------------- Start of search\n");
cnt = 0;
// find the first device (all devices not just alarming)
rslt = owFirst(portnum, TRUE, FALSE);
while (rslt)
{
// print the device number
cnt++;
printf("(%d) ",cnt);
// print the Serial Number of the device just found
owSerialNum(portnum,&SNum[0],TRUE);
PrintSerialNum(&SNum[0]);
printf("\n");
// find the next device
rslt = owNext(portnum, TRUE, FALSE);
}
printf("-------------------- End of search\n\n");
}
while (!key_abort());
// release the 1-Wire Net
owRelease(portnum);
printf("Closing port %s.\n", argv[1]);
exit(0);
return 0;
}
