1
Download MCS Electronics , 1995-2008 - Departamento de Automatización y
Transcript
702 BASCOM-AVR On track 2 and 3 the data is stored with 5 bit coding. The ReadMagCard routine works with ISO7811-2 5 and 7 bit decoding. The returned numbers for 5 bit coding are: Returned ISO characterT number 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 hardware control 11 start byte 12 hardware control 13 separator 14 hardware control 15 stop byte Example '---------------------------------------------------------------------------------------'name : magcard.bas 'copyright : (c) 1995-2005, MCS Electronics 'purpose : show you how to read data from a magnetic card 'micro : Mega48 'suited for demo : yes 'commercial addon needed : no '---------------------------------------------------------------------------------------$regfile = "m48def.dat" the used micro $crystal = 4000000 crystal frequency $baud = 19200 rate $hwstack = 32 use 32 for the hardware stack $swstack = 10 use 10 for the SW stack $framesize = 40 use 40 for the frame space ' specify ' used ' use baud ' default ' default ' default '[reserve some space] Dim Ar(100) As Byte , B As Byte , A As Byte 'the magnetic card reader has 5 wires 'red - connect to +5V © 2008 MCS Electronics
