void A7105_ReadData(u8 *dpbuffer, u8 len)
{
A7105_Strobe(A7105_RST_RDPTR);
for(int i = 0; i < len; i++)
dpbuffer[i] = A7105_ReadReg(0x05);
return;
}
int A7105_Reset()
{
A7105_WriteReg(0x00, 0x00);
usleep(1000);
//Set both GPIO as output and low
A7105_SetTxRxMode(TXRX_OFF);
int result = A7105_ReadReg(0x10) == 0x9E;
A7105_Strobe(A7105_STANDBY);
return result;
}
void A7105_ReadData(u8 *dpbuffer, u8 len)
{
A7105_Strobe(0xF0); //A7105_RST_RDPTR
for(int i = 0; i < len; i++)
dpbuffer[i] = A7105_ReadReg(0x05);
/*
CS_LO();
spi_xfer(SPI2, 0x40 | 0x05);
spi_disable(SPI2);
spi_set_bidirectional_receive_only_mode(SPI2);
spi_enable(SPI2);
int i;
for(i = 0; i < 10; i++)
;
spi_disable(SPI2);
for(i = 0; i < len; i++)
dpbuffer[i] = spi_read(SPI2);
CS_HI();
spi_set_unidirectional_mode(SPI2);
spi_enable(SPI2);
*/
return;
}
static int hubsan_init()
{
u8 if_calibration1;
u8 vco_calibration0;
u8 vco_calibration1;
//u8 vco_current;
A7105_WriteID(0x55201041);
A7105_WriteReg(A7105_01_MODE_CONTROL, 0x63);
A7105_WriteReg(A7105_03_FIFOI, 0x0f);
A7105_WriteReg(A7105_0D_CLOCK, 0x05);
A7105_WriteReg(A7105_0E_DATA_RATE, 0x04);
A7105_WriteReg(A7105_15_TX_II, 0x2b);
A7105_WriteReg(A7105_18_RX, 0x62);
A7105_WriteReg(A7105_19_RX_GAIN_I, 0x80);
A7105_WriteReg(A7105_1C_RX_GAIN_IV, 0x0A);
A7105_WriteReg(A7105_1F_CODE_I, 0x07);
A7105_WriteReg(A7105_20_CODE_II, 0x17);
A7105_WriteReg(A7105_29_RX_DEM_TEST_I, 0x47);
A7105_Strobe(A7105_STANDBY);
//IF Filter Bank Calibration
A7105_WriteReg(0x02, 1);
//vco_current =
A7105_ReadReg(0x02);
u32 ms = CLOCK_getms();
CLOCK_ResetWatchdog();
while(CLOCK_getms() - ms < 500) {
if(! A7105_ReadReg(0x02))
break;
}
if (CLOCK_getms() - ms >= 500) {
DEBUG_MSG("calibration failed");
return 0;
}
if_calibration1 = A7105_ReadReg(A7105_22_IF_CALIB_I);
A7105_ReadReg(A7105_24_VCO_CURCAL);
if(if_calibration1 & A7105_MASK_FBCF) {
//Calibration failed...what do we do?
return 0;
}
//VCO Current Calibration
//A7105_WriteReg(0x24, 0x13); //Recomended calibration from A7105 Datasheet
//VCO Bank Calibration
//A7105_WriteReg(0x26, 0x3b); //Recomended limits from A7105 Datasheet
//VCO Bank Calibrate channel 0?
//Set Channel
A7105_WriteReg(A7105_0F_CHANNEL, 0);
//VCO Calibration
A7105_WriteReg(0x02, 2);
ms = CLOCK_getms();
CLOCK_ResetWatchdog();
while(CLOCK_getms() - ms < 500) {
if(! A7105_ReadReg(0x02))
break;
}
if (CLOCK_getms() - ms >= 500) {
return 0;
}
vco_calibration0 = A7105_ReadReg(A7105_25_VCO_SBCAL_I);
if (vco_calibration0 & A7105_MASK_VBCF) {
//Calibration failed...what do we do?
return 0;
}
//Calibrate channel 0xa0?
//Set Channel
A7105_WriteReg(A7105_0F_CHANNEL, 0xa0);
//VCO Calibration
A7105_WriteReg(A7105_02_CALC, 2);
ms = CLOCK_getms();
CLOCK_ResetWatchdog();
while(CLOCK_getms() - ms < 500) {
if(! A7105_ReadReg(A7105_02_CALC))
break;
}
if (CLOCK_getms() - ms >= 500)
return 0;
vco_calibration1 = A7105_ReadReg(A7105_25_VCO_SBCAL_I);
if (vco_calibration1 & A7105_MASK_VBCF) {
//Calibration failed...what do we do?
}
//Reset VCO Band calibration
//A7105_WriteReg(0x25, 0x08);
A7105_SetTxRxMode(TX_EN);
A7105_SetPower(Model.tx_power);
A7105_Strobe(A7105_STANDBY);
return 1;
}