Name: VeriFone MX800 Series
Brand: VeriFone
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CONTACTLESS RF CARD READER MODULE

RFCRCheckCRC()

800 SERIES PROGRAMMERS GUIDE 247

RFCRCheckCRC()

Prototype

int RFCRCheckCRC (char* buff, short len, unsigned short* calcCRC);

Parameters

Return Values

buff Buffer containing the data and CRC, with the CRC being the last 2

bytes of the buffer data.

len Length of the data including the CRC

calcCRC Pointer to store the calculated CRC

1 CRC is valid

0 CRC did not match

Default Chapter3
- Table of Contents3
- Acronyms, Abbreviations, and Definitions11
Hapter11
- Modifications to this Document11
Scope11
- Conventions Used in this Document12
  - Recommended LINUX Books12
Hapter13
- Operating System and Firmware13
  - C Compiler and Tools13
Overview of Product Deliverables13
- Environment/Configuration Variables15
  - File Format Details15
Hapter15
- Getenvfile19
- Putenvfile20
  - System Configuration Variables21
  - Chapter21
- Getsysctl()24
- Putsysctl()25
- Downloading26
  - Downloaded Notes27
- Syslog Messages26
  - Remote Logging26
- File Authentication and Certificates28
- Package Management28
  - Building Ipkgs29
  - Installing Ipkgs31
- Device Drivers for the M33
File Systems15
File Compression15
Hapter33
- Magnetic Stripe Reader34
  - Msropen35
  - Msrread36
  - Msrwrite38
  - Msrmagneticcardpresent39
  - Msrraw40
  - Msrstructured41
  - Msrenablelicensedecode42
  - Msrdisablelicensedecode43
  - Msrversion()44
  - Msrclose45
- Internal PIN Pad46
  - Int Ippopen(Void)47
  - Int Ippclose(Void)48
  - Int Ippread(Char *Buffer, Int Size)49
    - Note on the PIN Session Timeout49
  - Int Ippwrite(Char *Buffer, Int Size)50
  - Setsecurepindisplayparameters()51
  - Int Ipppinentrystatus(Int *Count, Int *Lastnonnumerickey)54
  - Ippterminatepinentry()55
- IPP Differences56
- References57
  - IPP Specification57
  - GISKE Specification57
- Security Module57
- Verishield Security Scripts Apis57
  - Ips_Deletekeys()59
  - Ips_Loadsysclearkey()60
  - Ips_Loadsysenckey()61
  - Ips_Loadmasterclearkey()62
  - Ips_Loadmasterenckey()63
  - Ips_Checkmasterkey()64
- Setsecurepindisplayparameters()65
  - Ips_Setpinparameter()66
  - Ips_Selectpinalgo()68
  - Ips_Requestpinentry()69
  - Ips_Getpinresponse()70
  - Ips_Cancelpin()73
  - Ips_Installscript()74
  - Ips_Getscriptstatus()75
  - Ips_Uninstallscript()76
  - Ips_Executescript()77
  - Pcps_Getvssversion()79
- Security Services Apis80
  - Cryptowrite()81
  - Cryptoread()82
  - Rsa_Calc()83
  - Sha1()84
  - Des()85
  - Aes()86
  - Generaterandom()87
  - Isattacked()88
  - Secversion()89
  - Authfile()90
  - Loadosfiles()91
- Delta Smartcard Interface / Cardslot92
- Serial Ports and Protocols92
- Serial Communication Control Structure93
  - Protocol93
  - Trailer94
  - Packet_Parms94
- Packet Mode94
  - Initialize Packet Mode95
  - Endpktmode()96
  - Receiving Packet Messages97
- COM Ports on the M 800 Series of Terminals98
  - Com198
  - Com299
  - Com399
  - COM4 - Optional I/O Module100
  - Com5100
- IBM ECR Tailgate & Feature C100
  - Ecropen101
  - Ecrread102
  - Ecrreadreject103
  - Ecrstatus104
  - Ecrwrite109
  - Ecrclose110
  - Ecrdownload111
  - Ecrdnldcancel()113
- Signals114
- ECR Environment Variables116
  - I4683116
  - O4683116
  - A4683117
  - P4683117
  - L4683117
  - S4683118
  - V4683118
  - G4683118
- Downloading Files from the ECR119
- Touch Panel / Signature Capture/Tiff120
  - Touchcmd()121
  - Touchcompnsave()122
  - Signature Capture123
  - Sigcapcount()124
  - Sigcapget()125
  - Sigcapboxapply()126
- Tiff Api127
  - Int Sigcap2Tiff()128
- Display130
  - Dspsetbrightness()131
- Audio / Beeper132
  - Soundctrl()133
  - Speaker()134
  - Normaltone() / Errortone()135
- Leds136
  - Ledon137
  - Ledoff138
- Real-Time Clock (RTC)139
  - Setrtc()140
  - Setdatetime()141
CHAPTER 5 Service Functions143
Service Functions for the M X 800 Series of Terminals143
- Svccrccalc()144
- Svcdsp2Hex()146
- Svcrestart()147
- Svcinfokernel() / Svcinfoeprom()148
- Svcinforfs()149
- Svcinfoserialnum()150
- Svcinfoptid()151
- Svcinfoplatform()152
- Svcinfotype()154
- Svcinfodsp()155
- Svcinfocard()156
- Svcinfokey()157
- Svcinfoserialnum158
- Svczontalkrcv()159
- Zontalkcancel161
- Svcsetopenblock()162
- Svcsetrxcallback()163
- Svcreleaserxcallback()164
- Svcsetalarmcallback()165
- Svcreleasealarmcallback()166
- Svcalarm()167
- Svcgetportstatus()168
- Svcgetinq()170
- Svcgetoutq()171
- Svcexpand()172
- Svcusbstorpresent()173
- COM3 Service Functions174
  - Svccom3Setmode()175
  - Svccom3Reqextstatus()176
  - Svccom3Reqtallyinfo()178
  - Svccom3Restallydata()179
  - Svccom3Reqfirmvers()180
  - Svccom3Setdeviceaddr()181
  - Svccom3Seteclevel()182
  - Svccom3Sethandshake()183
  - Svccom3Flushrxbuf()185
  - Svccom3Setrxrecthresh()186
  - Svccom3Setbufflushint()187
  - Svccom3Polled()188
  - Svcgetsysmillisec(), Svcgetsysmicrosec()189
  - Enableprocessmonitor()190
  - Disableprocessmonitor()191
  - Enablebuttonsig()192
  - Disablebuttonsig()193
CHAPTER 6 System Mode195
System Mode for the M 800 Series of Terminals195
CHAPTER 7 Root File System197
Directory Structure198
- Organization of Files in the Standard Directory Structure198
- User Space Base Directory Structure199
- User Space and Security199
CHAPTER 8 USB - Device / Host201
USB Device201
- USB Host202
  - USB Mass Storage and Memory Devices202
- USB Human Interface Device (HID) Support204
CHAPTER 9 Network Configuration205
- Network Configuration Environment Variables205
- TCP/IP Ethernet Network Configuration205
- Netup()206
- Netdown()207
- Netgetconfig()208
- Netlinkstatus()209
- Getsysctl()210
- Supported Network Programs211
CHAPTER 10 IPP Legacy Library215
IPP Support for the M 800 Series of Terminals215
- Ipp_Getpin()217
- Ipp_Read()219
- Ipp_Mac()222
- Ipp_Abort()224
- Ipp_Diag()225
- Select_Key_Mgmnt()227
- Get_Key_Mgmnt()229
CHAPTER 11 Contactless RF Card Reader Module231
- Library API Functions231
CHAPTER 12 Input Events251
Inputopen252
- Inputread()253
- Inputclose()254
CHAPTER 13 Visual Payments Library Functions255
- C Hapter255
- Vpinit()256
- Vpparsefields()257
- Vpsendpacket()258
- Vpexit()259
- Vpversion()260
- Visual Payments Callback Functions261
- Network/Ethernet Library Functions Required by Visual Payments267
- XFTP Commands274
IPP MS and DUKPT Communications Packets275
- Advanced Programming in IPP275
  - Minor Differences by Packet275
- Packets276
- Ipp7281
- Common Packets289
- MS-Specific Packets314
- DUKPT-Specific Packets324
  - Packet 19: Select a DUKPT Engine324
- Packet 25: Check the DUKPT Engine326
- MAC-Specific Packets336

Brand	VeriFone
Model	MX800 Series
Category	Touch terminals
Language	English

VeriFone MX800 Series User Manual

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