e-mail me the c code I will compile it for you
and get back to you I only have 18f compiler in here
mailto:andre@ditechnology.com

Andre Abelian



PICFUN wrote:

> I have the folowing code in C and i dont have any program to compile
it!
> Please, if anyone can compile for me...
>
> #INCLUDE <16F84.H>
>
> #FUSES XT, WDT, PROTECT, NOPUT  // CCS Compiles PUT wrong - this means
PUT
>
> #ID 0x0000
>
> #USE DELAY(CLOCK=4000000, RESTART_WDT)
>
> #USE FAST_IO(A)
> #USE FAST_IO(B)
>
> #ZERO_RAM
>
> #BIT mlan =  0x05.0
> #BIT LEDG =  0x05.1
> #BIT LEDR =  0x05.2
> #BIT pulse =  0x05.3 // Low is 1 Sec, High is 10 secs
> #BIT config = 0x05.4
> #BYTE id_out = 0x06
>
> #DEFINE MLAN_IN    0b11111001
> #DEFINE MLAN_OUT    0b11111000
> #DEFINE STORED_IDS_ADDR 0x3F
>
> // Map out the IDs stored in the EEPROM
> byte CONST ee_table[7] = {0,6,12,18,24,30,36};
>
> // Globals
> int id_in[6];
>
> // Subroutines
>
> // Flash RED
> // This routine flashes the RED LED for secs/4 seconds
>
> void flash_red(int secs) {
>
>  int i;
>
>  LEDG = 0; delay_cycles(1); LEDR = 1;
>
>  for (i = 0; i < secs; i++) {
>   delay_ms(250);
>   LEDR = !LEDR;
>  }
> }
>
> // Gen CRC
> // This routine takes the old CRC value and a new byte and returns a
new CRC
> value
>
> int gen_crc(int crc_in, int newdata) {
>
>  int i;
>
>  for(i = 0; i < 8; i++) {
>   shift_right(&crc_in, 1, (bit_test(crc_in, 0) ^ shift_right(&newdata,
1,
> 0)));
>   // Check for the extra XOR
>   if (bit_test(crc_in, 7)) {
>    // We need an extra XOR
>    crc_in ^= 0x0C;
>   }
>  }
>
>  return crc_in;
> }
>
> // READ Byte
> // This routine reads in a byte from a microLAN device after a READ
command
> has been sent
>
> int read_byte() {
>
>  int byte_in, i, bit_cnt;
>
>  for(i = 0; i < 8; i++) {
>   // Clear bit counter
>   bit_cnt = 0;
>
>   // Pulse microLAN low to clock bit
>   set_tris_a(MLAN_OUT);
>   mlan = 0;
>   delay_us(3);
>   set_tris_a(MLAN_IN);
>   delay_us(3); // Allow some pullup recovery time
>
>   // We now have ~7us left to sample a few times
>   if (!mlan) { bit_cnt++; }
>   if (!mlan) { bit_cnt++; }
>   if (!mlan) { bit_cnt++; }
>
>   // Lets shoot for 2 out of 3!  Use a quickie bit test for efficiency
>
>   shift_right(&byte_in, 1, !bit_test(bit_cnt, 1));
>
>   // Lets allow for the microLan device to release (45us MAX) and LAN
to
> recover (15)
>   delay_us(45);
>  }
>
>  return byte_in;
> }
>
> // READ iButton
> // This routine is called to read an iButtons' unique serial ID.  The
> following steps are taken:
> // 1. Issue Read ROM command on MicroLAN (0x33)
> // 2. Read in 8 byte ID
> // 3. Check family code and CRC
> // 4. Store 6 byte serial in id_in if valid and return TRUE OR
> //  Return false for Bad CRC or family code
>
> boolean read_ibutton() {
>
>  int i, tmp, family, crc_in;
>
>  // Lets write out the Read ROM command
>  tmp = 0x33;
>  for(i = 0; i < 8; i++) {
>   // Bring micro LAN low for 7us
>   set_tris_a(MLAN_OUT);
>   mlan = 0;
>   delay_us(7);
>
>   // Output the bit
>   if (shift_right(&tmp, 1, 0)) {
>    // Output a 1 via the pullup
>    set_tris_a(MLAN_IN);
>   } else {
>    set_tris_a(MLAN_OUT);
>    mlan = 0;
>   }
>
>   delay_us(50); // Allow iButton to read the data and complete slot
>
>   // Now we go to tristate
>   set_tris_a(MLAN_IN);
>
>   // No need for 1us delay since loop takes care of it
>  }
>
>  // Now the iButton will start dumping data back to us synced to our
pulses
>  family = read_byte();
>
>  // If the family code is bad - quit
>  if (family != 0x01) {
>   return FALSE;
>  }
>
>  crc_in = gen_crc(0x00, family);
>
>  for(i = 0; i < 6; i++) {
>
> //  id_in[i] = read_byte();
> //  crc_in = gen_crc(crc_in, id_in[i]);
>
>   // The code below is more compact (15us vs 20us)
>   tmp = read_byte();
>   id_in[i] = tmp;
>   crc_in = gen_crc(crc_in, tmp);
>  }
>
>  if (crc_in == read_byte()) {
>   // The CRC is okay!
>   return TRUE;
>  } else {
>   return FALSE;
>  }
> }
>
> // Check LAN
> // This routine issues an INIT pulse on the micro LAN (480 - 960 us)
and
> looks for a presence
> // pulse from an ibutton.  If it sees one, it returns true indicating
an
> active device is on the LAN
>
> boolean check_lan() {
>
>  int i, low_hit;
>
>  low_hit = 0;
>
>  // Bring MLAN low for at least 480us - we'll use 520 us
>  set_tris_a(MLAN_OUT);
>  mlan = 0;
>  delay_us(520);
>
>  // Put bus back in tristate
>  set_tris_a(MLAN_IN);
>
>  // Lets see if a pulse comes back in the proper window
>  // The pulse will start 15-60 us after going high
>  // The pulse will be 60us - 240us
>
>  // The presence pulse period must be a minimum of 480us
>  // So lets check for a low every 10us and if we get 4 (since pulse
has to
> be 60us min), take it
>  for (i = 0; i < 48; i++) {
>   if (!mlan) { low_hit++; } // Catch a presence pulse
>   delay_us(2); // For loop takes 9us @ 4MHz
>  }
>
>  if (low_hit > 3) {
>   return TRUE;
>  } else {
>   return FALSE;
>  }
> }
>
> // Check ID
> // This routine takes the passed ID in id_in and compares it to those
IDs in
> EEPROM
> // If it finds a match, it returns the ID number, otherwise it returns
0x00
>
> int check_id(int num_ids) {
>
>  int ee_addr, button_idx, cnt;
>  boolean match;
>
>  button_idx = 0;
>
>  while(++button_idx <= num_ids) {
>   // Check all stored button IDs
>   cnt = 0; restart_wdt();
>   ee_addr = ee_table[button_idx-1];
>   match = TRUE;
>   while (cnt != 6) {
>
>    if (read_eeprom(ee_addr) != id_in[cnt]) {
>     match = FALSE; // Doesn't match - check next button
>     break;
>    }
>
>    ee_addr++;
>    cnt++;
>   }
>
>   if (match) {
>    // We matched everything!
>    return button_idx;
>   }
>  }
>
>  // No matches!
>  return 0;
> }
>
> void main() {
>
>  int stored_ids, id_matched, temp_out, i, eeprom_addr;
>
>  // Setup IO port directions and initialize ports
>  set_tris_a(MLAN_IN);
>  set_tris_b(0b00000000);
>  id_out = 0x00;
>
>  // Lets give some indication that we are alive
>  LEDR = 0; LEDG = 1;
>  delay_ms(1000);
>  LEDG = 0; LEDR = 1;
>  delay_ms(1000);
>  LEDR = 0; LEDG = 0;
>  delay_ms(1000);
>
>  // Check config bitm - LOW means config
>  if (!config) {
>   // Configuration mode
>   eeprom_addr = 0x00;
>   stored_ids = 0;
>
>   // We can store 7 buttons
>   for(i = 0; i < 7; i++) {
>    LEDG = 0; delay_cycles(1); LEDR = 1; // Red
>
>    // Lets wait for a button
> LAN_WAIT1:
>    while(!check_lan()) { restart_wdt(); }
>
>    // Lets read the iButton - if we get a CRC error, lets try again
(and
> again :) )
>    while(!read_ibutton()) {
>     // We didn't get a good read, lets keep trying
>     restart_wdt();
>     delay_ms(1); // Give the bus a chance to stabilize
>     if (!check_lan()) {
>      // Bail - we can't see a device!
>      goto LAN_WAIT1;
>     }
>    }
>
>    // Lets make sure this ID hasn't already been stored in EEPROM
>    if (check_id(stored_ids) != 0) {
>     i--; // Lets take a step back for another try
>     flash_red(20);
>     continue;
>    }
>
>    // We have a valid ID in id_in.  Lets store it - all six bytes
>    for(temp_out = 0; temp_out < 6; temp_out++) {
>     write_eeprom(eeprom_addr, id_in[temp_out]);
>     restart_wdt();
>     eeprom_addr++;
>    }
>
>    // Update number of IDs - this ensures that we don't check random
>    // data bytes if they use < 7 buttons
>    stored_ids++;
>    write_eeprom(STORED_IDS_ADDR, stored_ids);
>
>    // Green LED for 5 seconds
>    LEDR = 0; delay_cycles(1); LEDG = 1;
>    delay_ms(5000);
>
>   }
>
>   // Okay, we've maxed out or storage - let user know
>   // Blink Green until reset
>   LEDR = 0; delay_cycles(1); LEDG = 1;
>   while(TRUE) {
>    delay_ms(250);
>    LEDG = !LEDG;
>   }
>
>  } else {
>   // Normal operation
>   stored_ids = read_eeprom(STORED_IDS_ADDR);
>
>   while(TRUE) {
>
>    LEDG = 0; delay_cycles(1); LEDR = 0; // Off
>
>    // Check for presence pulse and read ID if button is online
> LAN_WAIT2:
>    while(!check_lan()) { restart_wdt(); }
>
>    // Something is on the micro LAN - lets read the ID
>    while(!read_ibutton()) {
>     // We didn't get a good read, lets keep trying
>     restart_wdt();
>     delay_ms(1); // Give the bus a chance to stabilize
>     if (!check_lan()) {
>      // Bail - we can't see a device!
>      goto LAN_WAIT2;;
>     }
>    }
>
>    // Valid ID was received - lets check it
>
>    id_matched = check_id(stored_ids);
>
>    if (id_matched == 0) {
>     // ID does not match
>     LEDG = 0; delay_cycles(1); LEDR = 1; // RED
>     delay_ms(10000);
>    } else {
>     // Valid ID match - trigger outputs
>     temp_out = 1;
>     for(i = 0; i < id_matched; i++) {
>      temp_out <<= 1;
>     }
>     temp_out |= 0x01;
>
>     // Output the bits
>     id_out = temp_out;
>
>     LEDR = 0; delay_cycles(1); LEDG = 1; // Green
>
>     // Low on Pulse means 1 sec, high means 10 secs
>     if (pulse) {
>      delay_ms(10000);
>     } else {
>      delay_ms(1000);
>     }
>
>     id_out = 0x00;
>    }
>   } // while(TRUE)
>  } // if (config)
> } // End MAIN
>
> --
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>
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