// Read device ID
unsigned char MagVerifyDeviceId(void)
{
unsigned char id;
MagOpen();
MagAddressRead(MAG_ADDR_WHO_AM_I);
id = MagReadLast();
MagClose();
magPresent = (id == MAG_DEVICE_ID) ? 1 : 0;
return magPresent;
}
// Shutdown the device to standby mode (standby mode, interrupts disabled)
void MagStandby(void)
{
MagOpen();
MagAddressWrite(MAG_ADDR_CTRL_REG1);
MagWrite(0b01100000);/* 10Hz OSR 16, 137uA, continuous normal sampling ON
b7-5 : DR[2:0] Data rate selection. Default value: 000.
b4-3 : OS [1:0] This register configures the over sampling ratio or measurement integration time. Default value: 00.
b2 : FR Fast Read selection. Default value: 0: The full 16-bit values are read. 1: Fast Read, 8-bit values read from the MSB registers.
b1 : TM Trigger immediate measurement. 0: Normal operation based on AC condition. 1: Trigger measurement.
b0 : AC 0: STANDBY mode. 1: ACTIVE mode. */
/*MAG_ADDR_CTRL_REG2*/
MagClose();
}
// Debug dump registers
void MagDebugDumpRegisters(void)
{
static unsigned char i,regs[10];
MagOpen();
MagAddressRead(MAG_ADDR_WHO_AM_I); /*otherwise it will wrap arround the result regs*/
for (i=0;i<10;i++)
{
regs[i] = MagReadContinue();
}
MagReadLast();
MagClose();
Nop();
Nop();
Nop();
Nop();
return;
}
// 显示空闲时用户界面
// show an idle UI
void ShowIdleMainUI(uchar *pbForceUpdate, uchar bShowGallery, int iGallery_Image_Num)
{
static uchar szLastTime[5+1] = {"00000"};
uchar szCurTime[16+1];
GetEngTime(szCurTime);
if( *pbForceUpdate || memcmp(szLastTime, &szCurTime[11], 4)!=0 ) // Reset magstripe reader every 10 minutes
{
MagClose();
MagOpen();
MagReset();
}
if(bShowGallery){
ShowGallery(iGallery_Image_Num);
}
if( *pbForceUpdate || memcmp(szLastTime, &szCurTime[11], 5)!=0)
{
// refresh UI
sprintf((char *)szLastTime, "%.5s", &szCurTime[11]);
// Gui_ClearScr(); // removed by Kim_LinHB 2014-08-13 v1.01.0003 bug512
// Modified by Kim_LinHB 2014-8-11 v1.01.0003
//Gui_ShowMsgBox(szCurTime, gl_stTitleAttr, NULL, gl_stCenterAttr, GUI_BUTTON_NONE, 0,NULL);
Gui_UpdateTitle(szCurTime, gl_stTitleAttr);
//Gui_DrawText(szCurTime, gl_stTitleAttr, 0, 5);
if(*pbForceUpdate){
if(!bShowGallery)
{
Gui_UpdateKey(XUI_KEYFUNC, _T("FUNC"), NULL, NULL);
Gui_UpdateKey(XUI_KEYMENU, _T("MENU"), NULL, NULL);
Gui_SetVirtualButton(1, 1);
DispSwipeCard(TRUE);
}
else
Gui_SetVirtualButton(0,0);
}
*pbForceUpdate = FALSE;
}
#ifdef _WIN32
DelayMs(100);
#endif
}
// MagStartup
void MagStartup(unsigned char samplingRate)
{
MagOpen();
MagAddressWrite(MAG_ADDR_OFF_X_MSB); /* Offset regs*/
MagWrite(0b00000000); /* MAG_ADDR_OFF_X_MSB */
MagWrite(0b00000000); /* MAG_ADDR_OFF_X_LSB */
MagWrite(0b00000000); /* MAG_ADDR_OFF_Y_MSB */
MagWrite(0b00000000); /* MAG_ADDR_OFF_Y_LSB */
MagWrite(0b00000000); /* MAG_ADDR_OFF_Z_MSB */
MagWrite(0b00000000); /* MAG_ADDR_OFF_Z_LSB */
MagReopen();
MagAddressWrite(MAG_ADDR_CTRL_REG1);
/*MAG_ADDR_CTRL_REG1*/
{
unsigned char ctrl_reg1 = 0;
switch (samplingRate)
{
/*keeping the minimum possible oversample ratio - lowest power - continuous normal sampling ON */
case (80) : {ctrl_reg1 = 0b00000001;magRate = 80; break;} /*900uA*/
case (40) : {ctrl_reg1 = 0b00100001;magRate = 40; break;} /*550uA*/
case (20) : {ctrl_reg1 = 0b01000001;magRate = 20; break;} /*275uA*/
case (10) : {ctrl_reg1 = 0b01100001;magRate = 10; break;} /*137uA*/
case (5) : {ctrl_reg1 = 0b10000001;magRate = 5; break;} /*68uA*/
case (2) : {ctrl_reg1 = 0b10100001;magRate = 2; break;} /*34.4uA*/
case (1) : {ctrl_reg1 = 0b11000001;magRate = 1; break;} /*17.2uA*/
default : {ctrl_reg1 = 0b01100001;magRate = 10; break;}/* 10Hz OSR 16, 137uA */
}
MagWrite(ctrl_reg1); /*
b7-5 : DR[2:0] Data rate selection. Default value: 000.
b4-3 : OS [1:0] This register configures the over sampling ratio or measurement integration time. Default value: 00.
b2 : FR Fast Read selection. Default value: 0: The full 16-bit values are read. 1: Fast Read, 8-bit values read from the MSB registers.
b1 : TM Trigger immediate measurement. 0: Normal operation based on AC condition. 1: Trigger measurement.
b0 : AC 0: STANDBY mode. 1: ACTIVE mode. */
}
/*MAG_ADDR_CTRL_REG2*/
MagWrite(0b00000000); /*
b7 : AUTO_MRST_EN Automatic Magnetic Sensor Reset. 0: Automatic Magnetic sensor resets off. 1: Automatic Magnetic sensor resets on.
b5 : RAW 0: Normal mode: data values are corrected by the user offset register values. 1: Raw mode: data values are not corrected by the user offset register values.
b4 : Mag_RST 0: Reset cycle not active. 1: Reset cycle initiate or Reset cycle busy/active.*/
MagClose();
return;
}
/*Note: The samples are 2's compliment and 16bit*/
void MagSingleSample(mag_t *value)
{
MagOpen();
MagAddressRead(MAG_ADDR_OUT_X_MSB);
if (value == NULL)
{
MagReadContinue();MagReadContinue();MagReadContinue();
MagReadContinue();MagReadContinue();MagReadLast();
}
else
{
value->xh = MagReadContinue();
value->xl = MagReadContinue();
value->yh = MagReadContinue();
value->yl = MagReadContinue();
value->zh = MagReadContinue();
value->zl = MagReadLast();
}
MagClose();
return;
}
