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Title: caller id "fsk" Post by: arash on December 04, 2005, 09:00:57 21:00 Hi all.
I want to make a caller id but in fsk format. I heard about XR2211 for decoding it. Is that right? How to use it. thanks Title: caller id "fsk" Post by: tasosstr on December 05, 2005, 08:00:29 20:00 Hello ,
Have a look http://www.melabs.com/resources/callerid.htm http://www.melabs.com/products/labxt.htm The datasheet for the ic is also there, and look also the samples Best Regards, Tasosstr Title: caller id "fsk" Post by: max on December 05, 2005, 09:04:03 21:04 Hi,
Try the zarlink caller id chips MT8841 or MT8843, compact circuit and easier to interface with uC, better performance than xr2211. Title: caller id "fsk" Post by: arash on December 05, 2005, 09:09:29 21:09 Hi max
is MT8841 or MT8843 for fsk? Title: caller id "fsk" Post by: arash on December 05, 2005, 09:11:56 21:11 Hi tasosstr
Where can i finde the schematic? Title: caller id "fsk" Post by: max on December 05, 2005, 09:41:17 21:41 Hi,
Both zarlink chips are for fsk decoding, also you do'nt need a serial port to retrieve the data, simple spi interface. Title: caller id "fsk" Post by: tasosstr on December 10, 2005, 10:04:57 10:04 Hi arash
The pdf file with sch is on : http://www.melabs.com/downloads/LABXTSCH.PDF (http://www.melabs.com/downloads/LABXTSCH.PDF) and some samples ... ' PicBasic Pro 2.42 or later, LAB-XT Experimenter Board, PIC16F877-20 ' Displays Caller ID information on LCD. Connect either jack on the ' LAB-XT to a telephone line. Caller ID service must be provided ' by your local phone company. This code only reads Multiple Data ' Message Format. LED4 lights when ring is present. DEFINE LOADER_USED 1 ' Only required for melabs Loader DEFINE OSC 20 ' Match the crystal on the board ' Define LCD registers and bits DEFINE LCD_DREG PORTD DEFINE LCD_DBIT 4 DEFINE LCD_RSREG PORTE DEFINE LCD_RSBIT 0 DEFINE LCD_EREG PORTE DEFINE LCD_EBIT 1 ring_detect VAR PORTA.2 ' Define the ring-detect input pin cid_serial_data VAR PORTA.0 ' Define the Caller-ID serial input pin led4 VAR PORTC.1 ' Define LED output idstring VAR BYTE[96] ' Array variable for recording the CID data h VAR BYTE ' Variable for loop count and timing i VAR BYTE ' Variable for loop count length VAR BYTE ' Variable stores the length of CID data string ADCON1 = 7 ' Set PORTA and PORTE to digital Pause 200 ' Wait for LCD to start up LCDOut $fe,1, "Caller ID for LAB-XT" ' Vanity display loop: IF ring_detect = 1 Then loop ' Wait here until ring detected High led4 ' Light LED to indicate incoming ring time_after: IF ring_detect = 0 Then i = 0 ' Clear timer variable if still ringing i = i + 1 ' Increment timer variable Pause 1 ' Pause 1mS IF i < 250 Then time_after ' Loop here until 250mS after ring stops Low led4 ' Ring finished, kill LED ' Look for CID data, abort if no data for 500mS SerIn2 cid_serial_data, 813, 500, loop, [wait($80),length,STR idstring\length] LCDOut $fe,1 ' Clear the display For i = 0 TO length ' Begin loop, each count represents a character ' in the recorded CID data string. Select Case idstring ' For each character, check for known parameter types Case $01 ' Parameter type 01 (hex) is date and time. i = i + 1 ' Move index pointer to parameter length character. ' This avoids the length character being mistaken for ' a parameter-type code. LCDOut $fe,$80,idstring[i+1],idstring[i+2],_ ' Display date and time $FE,$C0, idstring[i+3],idstring[i+4], " ",_ $FE,$83, idstring[i+5],idstring[i+6],":",_ idstring[i+7],idstring[i+8] Case $02, $04 ' Parameter type 02 is the phone number. ' Parameter type 04 is the reason, if there is no number LCDOut $FE,$89 ' Move the LCD cursor to position 9 on line 1 GoSub disp_string ' Display the number string Case $07, $08 ' Parameter type 07 is the caller's name. ' Parameter type 08 is the reason, if there is no name LCDOut $FE,$C3 ' Move the LCD cursor to position 4, line 2 GoSub disp_string ' Display the name string End Select Next i ' Loop to the next character in the array GoTo loop ' Return and wait for next ring ' Subroutine to display text string. This routine is called when a variable length CID parameter ' type is read from the array. The number of characters to display is stored in the next array ' location after the parameter type. disp_string: i = i + 1 ' Move the index pointer to the parameter-length byte IF idstring=1 Then ' If the parameter is only 1 character long, then display a reason IF idstring[i+1] = "O" Then LCDOut "Out Of Area" ' "O" is Out Of Area IF idstring[i+1] = "P" Then LCDOut "Blocked" ' "P" is Private Caller Else ' If the parameter is longer than 1 character For h = 1 TO idstring ' Loop from 1 to the length of the parameter LCDOut idstring[i+h] ' Display each character in the parameter Next h ' Do it for the next character EndIF ..... Title: caller id "fsk" Post by: tasosstr on December 10, 2005, 10:20:30 10:20 ------------------------------------------
Another one ------------------------------------------ ' PicBasic Pro 2.42 or later, LAB-XT Experimenter Board, PIC16F877-20 ' Demonstrates remote control using DTMF over a phone line. The ' LAB-XT will answer an incoming call on the third ring and sound ' a short tone to the caller. The caller can then control 2 leds ' by pressing keys on his telephone. ' Press 1 for LED4 ON ' Press 2 for LED3 ON ' Press 4 for LED4 OFF ' Press 5 for LED3 OFF ' Press 0 to disconnect DEFINE LOADER_USED 1 ' Only required for melabs Loader DEFINE OSC 20 ' 20MHz crystal on the LAB-XT ' Define LCD registers and bits DEFINE LCD_DREG PORTD DEFINE LCD_DBIT 4 DEFINE LCD_RSREG PORTE DEFINE LCD_RSBIT 0 DEFINE LCD_EREG PORTE DEFINE LCD_EBIT 1 seize VAR PORTD.1 ' Alias the line seize control pin loop_current VAR PORTA.3 ' alias the loop current detect input pin ring_detect VAR PORTA.2 ' Alias the ring-detect input pin dtmf_ready VAR PORTA.4 ' Alias the dtmf data-ready pin select_dtmf VAR PORTD.3 ' Alias the dtmf enable pin DTMF_out VAR PORTE.2 ' Alias pin for remote user prompts led3 VAR PORTC.0 ' Alias pin for LED3 led4 VAR PORTC.1 ' Alias pin for LED4 TRISD = 0 ' Set PORTD to output PORTD = 0 ' Initialize PORTD, all zero ADCON1 = 7 ' Set PORTA and PORTE to digital Pause 200 ' Wait for LCD to start up LCDOut $fe,1 ' Clear display i VAR WORD ' Variable for loop count rings VAR BYTE ' Stores number of rings dtmf_digit VAR BYTE ' Stores dtmf received digit initialize: LCDOut $fe,1, "Waiting for call" ' Display user prompt Low seize ' Release the line rings = 0 ' Reset ring count to 0 i = 0 Low led3 ' Shut off LED3 Low led4 ' Shut off LED4 loop: Pause 1 ' Pause 1mS i = i + 1 ' Increment counter IF i > 5000 Then initialize ' If 5 seconds have elapsed without ring, re-initialize IF ring_detect Then loop ' Loop here until ring detected ringing: IF ring_detect = 0 Then i = 0 ' Clear timer variable if still ringing i = i + 1 ' Increment timer variable Pause 1 ' Pause 1mS IF i < 250 Then ringing ' Return to loop until 250mS after ring stops rings = rings + 1 ' Increment ring counter LCDOut $fe,1, DEC rings," rings detected" ' Display user prompt IF rings < 3 Then loop ' If less than 3 rings, wait for more seize = 1 ' If ring 5, answer the call Pause 250 ' Wait 250mS for the line to settle FreqOut DTMF_out, 500, 800 ' Play a short tone to prompt the caller LCDOut $fe,1, "Waiting for DTMF" ' Display user prompt listen: IF (seize = 1) AND (loop_current = 1) Then initialize ' Re-initialize if the call is dropped remotely IF dtmf_ready = 0 Then listen ' Check for DTMF present, if none loop again ' If DTMF present, continue select_dtmf = 1 ' Enable the data output from the MT8870 Pause 1 ' Pause 1 mS to let data settle dtmf_digit = (PORTB >> 4) ' Read the top nibble of PORTB for DTMF data ' Use LOOKUP to change the DTMF data to an ASCII character LookUp dtmf_digit, ["_1234567890*#ABCD"], dtmf_digit dtmf_wait: IF dtmf_ready Then dtmf_wait ' Loop here until DTMF signal stops select_dtmf = 0 ' Disable the MT8870 data output Select Case dtmf_digit ' Take action based on the dtmf digit Case "1" ' DTMF "1" lights LED3 High led3 Case "2" ' DTMF "2" lights LED4 High led4 Case "4" ' DTMF "4" kills LED3 Low led3 Case "5" ' DTMF "5" kills LED4 Low led4 Case "0" ' DTMF "0" hangs up and re-initializes GoTo initialize End Select GoTo listen ' Listen for next DTMF digit ------------------------------------------------ Another one ------------------------------------------------ ' PicBasic Pro 2.42 or later, LAB-XT Experimenter Board, PIC16F877-20 ' Telemarketing stopper. Reads caller id and plays Special Information Tones (SIT) ' when CID information has been blocked. DEFINE LOADER_USED 1 ' Only required for melabs Loader DEFINE OSC 20 ' Define for 20MHz crystal on LAB-XT led4 VAR PORTC.1 ' LED4 output pin sieze VAR PORTD.1 ' Relay control pin (sieze line) loop_current VAR PORTA.3 ' Loop current present (active low) ring_detect VAR PORTA.2 ' Ring detect pin (active low, square wave) dtmf_out VAR PORTE.2 ' DTMF signal output pin cid_serial_data VAR PORTA.0 ' Caller ID data from FSK chip ADCON1 = 7 ' Set PORTA and PORTE to digital TRISD = 0 ' Set PORTD to output PORTD = 0 ' Initialize PORTD, all low ' Define program variables j VAR BYTE ' Loop counter, misc ring_freq VAR WORD ' Frequency of ring signal (speaker PWM) cid_code VAR BYTE ' Stores reason code from CID string initialize: sieze = 0 ' Deactivate the line-sieze relay (Hang Up) Pause 250 ' Wait 250mS for things to settle loop: ' If Off Hook and the loop_current drops, the caller has hung up. Drop the line IF (sieze = 1) AND (loop_current = 1) Then initialize IF (ring_detect = 0) Then ' Check for ring-detect (incoming call, active low) j = 0 ' Clear j variable (time elapsed since last ring-detect) ring_cycle: High led4 ' Light LED to indicate incoming call Pause 1 ' Pause 1mS so we can time this loop j = j + 1 ' Each count of j represents 1mS of time IF (j > 60) Then stop_ringing ' If no ring_detect for 60mS, ring has ended IF ring_detect = 1 Then ring_cycle ' Stay in this loop until ring_detect Pause 30 ' Pause 30mS. (Low period of ring-detect) j = 30 ' Set j to 30 (30mS) GoTo ring_cycle ' Loop to keep monitoring the ring-detect stop_ringing: ' Jump here at end of ring or to answer call Low led4 ' Shut off the LED Pause 250 ' Wait 250mS for line to settle ' Look for CID data, abort if no data for 500mS SerIn2 cid_serial_data, 813, 500, loop, [wait($80),wait($04,$01), cid_code] IF cid_code = "P" Then block_call ' Check for "Private" code EndIF GoTo loop ' Repeat main loop block_call: ' Jumps here if turned on and the caller id is blocked sieze = 1 ' Sieze line (Off Hook) Pause 500 ' Wait 500mS to establish loop current FreqOut dtmf_out,330,950 ' Send 950Hz tone for 330mS Pause 25 ' 25mS of silence FreqOut dtmf_out,330,1400 ' Send 1400Hz tone for 330mS Pause 25 ' 25mS of silence FreqOut dtmf_out,330,1800 ' Send 1800Hz tone for 330mS Pause 1000 ' 1 second of silence GoTo loop ' Back to main loop Other samples (and that sample for caller id) you can find on : http://www.melabs.com/resources/samples.htm#xtpbp (http://www.melabs.com/resources/samples.htm#xtpbp) I hope to help ... Best Regards, Tasosstr |