File content as of revision 0:b11b455d4997:

#include "mbed.h"

class GT511C3 : public Serial {
public:
    enum Command {
        CMD_Open = 0x01, // 01 Open Initialization 
        CMD_Close = 0x02, // 02 Close Termination 
        CMD_UsbInternalCheck = 0x03, // 03 UsbInternalCheck Check if the connected USB device is valid 
        CMD_ChangeBaudrate = 0x04, // 04 ChangeBaudrate Change UART baud rate 
        CMD_SetIAPMode = 0x05, // 05 SetIAPMode Enter IAP Mode In this mode, FW Upgrade is available 
        CMD_CmosLed = 0x12, // 12 CmosLed Control CMOS LED 
        CMD_GetEnrollCount = 0x20, // 20 GetEnrollCount Get enrolled fingerprint count 
        CMD_CheckEnrolled = 0x21, // 21 CheckEnrolled Check whether the specified ID is already enrolled 
        CMD_EnrollStart = 0x22, // 22 EnrollStart Start an enrollment 
        CMD_Enroll1 = 0x23, // 23 Enroll1 Make 1st template for an enrollment 
        CMD_Enroll2 = 0x24, // 24 Enroll2 Make 2nd template for an enrollment 
        CMD_Enroll3 = 0x25, // 25 Enroll3  Make 3rd template for an enrollment, merge three templates into one template, save merged template to the database 
        CMD_IsPressFinger = 0x26, // 26 IsPressFinger Check if a finger is placed on the sensor 
        CMD_DeleteID = 0x40, // 40 DeleteID Delete the fingerprint with the specified ID 
        CMD_DeleteAll = 0x41, // 41 DeleteAll Delete all fingerprints from the database 
        CMD_Verify = 0x50, // 50 Verify 1:1 Verification of the capture fingerprint image with the specified ID 
        CMD_Identify = 0x51, // 51 Identify 1:N Identification of the capture fingerprint image with the database 
        CMD_VerifyTemplate = 0x52, // 52 VerifyTemplate 1:1 Verification of a fingerprint template with the specified ID 
        CMD_IdentifyTemplate = 0x53, // 53 IdentifyTemplate 1:N Identification of a fingerprint template with the database 
        CMD_CaptureFinger = 0x60, // 60 CaptureFinger Capture a fingerprint image(256x256) from the sensor 
        CMD_MakeTemplate = 0x61, // 61 MakeTemplate Make template for transmission
        CMD_GetImage = 0x62, // 62 GetImage Download the captured fingerprint image(256x256) 
        CMD_GetRawImage = 0x63, // 63 GetRawImage Capture & Download raw fingerprint image(320x240) 
        CMD_GetTemplate = 0x70, // 70 GetTemplate Download the template of the specified ID 
        CMD_SetTemplate = 0x71, // 71 SetTemplate Upload the template of the specified ID 
        CMD_GetDatabaseStart = 0x72, // 72 GetDatabaseStart Start database download, obsolete 
        CMD_GetDatabaseEnd = 0x73, // 73 GetDatabaseEnd End database download, obsolete 
        CMD_UpgradeFirmware = 0x80, // 80 UpgradeFirmware Not supported 
        CMD_UpgradeISOCDImage = 0x81, // 81 UpgradeISOCDImage Not supported 
        CMD_Ack = 0x30, // 30 Ack Acknowledge. 
        CMD_Nack = 0x31, // 31 Nack Non-acknowledge.
p    };
    GT511C3(PinName _tx, PinName _rx) : Serial(_tx,_rx){}
    int Init(void);
    int SendCommand(unsigned long Parameter,unsigned short Command);
    int RecvResponse(unsigned long *Parameter,unsigned short *Response);
    int ClearLine(void);
};