AFE44x0_AFE4400_

/* * AFE44x0.c * * Provides AFE44x0 API * * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ * ALL RIGHTS RESERVED * */ #include "device.h" #include "types.h" //Basic Type declarations #include "AFE44x0.h" /************************************************************************************************************************************************** * Prototypes * **************************************************************************************************************************************************/ /************************************************************************************************************************************************** * Global Variables * **************************************************************************************************************************************************/ #define DELAY_COUNT 2 unsigned long AFE44xx_Current_Register_Settings[36] = { CONTROL0_VAL, //Reg0:CONTROL0: CONTROL REGISTER 0 LED2STC_VAL, //Reg1:REDSTARTCOUNT: SAMPLE RED START COUNT LED2ENDC_VAL, //Reg2:REDENDCOUNT: SAMPLE RED END COUNT LED2LEDSTC_VAL, //Reg3:REDLEDSTARTCOUNT: RED LED START COUNT LED2LEDENDC_VAL, //Reg4:REDLEDENDCOUNT: RED LED END COUNT ALED2STC_VAL, //Reg5:AMBREDSTARTCOUNT: SAMPLE AMBIENT RED START COUNT ALED2ENDC_VAL, //Reg6:AMBREDENDCOUNT: SAMPLE AMBIENT RED END COUNT LED1STC_VAL, //Reg7:IRSTARTCOUNT: SAMPLE IR START COUNT LED1ENDC_VAL, //Reg8:IRENDCOUNT: SAMPLE IR END COUNT LED1LEDSTC_VAL, //Reg9:IRLEDSTARTCOUNT: IR LED START COUNT LED1LEDENDC_VAL, //Reg10:IRLEDENDCOUNT: IR LED END COUNT ALED1STC_VAL, //Reg11:AMBIRSTARTCOUNT: SAMPLE AMBIENT IR START COUNT ALED1ENDC_VAL, //Reg12:AMBIRENDCOUNT: SAMPLE AMBIENT IR END COUNT LED2CONVST_VAL, //Reg13:REDCONVSTART: REDCONVST LED2CONVEND_VAL, //Reg14:REDCONVEND: RED CONVERT END COUNT ALED2CONVST_VAL, //Reg15:AMBREDCONVSTART: RED AMBIENT CONVERT START COUNT ALED2CONVEND_VAL, //Reg16:AMBREDCONVEND: RED AMBIENT CONVERT END COUNT LED1CONVST_VAL, //Reg17:IRCONVSTART: IR CONVERT START COUNT LED1CONVEND_VAL, //Reg18:IRCONVEND: IR CONVERT END COUNT ALED1CONVST_VAL, //Reg19:AMBIRCONVSTART: IR AMBIENT CONVERT START COUNT ALED1CONVEND_VAL, //Reg20:AMBIRCONVEND: IR AMBIENT CONVERT END COUNT ADCRSTSTCT0_VAL, //Reg21:ADCRESETSTCOUNT0: ADC RESET 0 START COUNT ADCRSTENDCT0_VAL, //Reg22:ADCRESETENDCOUNT0: ADC RESET 0 END COUNT ADCRSTSTCT1_VAL, //Reg23:ADCRESETSTCOUNT1: ADC RESET 1 START COUNT ADCRSTENDCT1_VAL, //Reg24:ADCRESETENDCOUNT1: ADC RESET 1 END COUNT ADCRSTSTCT2_VAL, //Reg25:ADCRESETENDCOUNT2: ADC RESET 2 START COUNT ADCRSTENDCT2_VAL, //Reg26:ADCRESETENDCOUNT2: ADC RESET 2 END COUNT ADCRSTSTCT3_VAL, //Reg27:ADCRESETENDCOUNT3: ADC RESET 3 START COUNT ADCRSTENDCT3_VAL, //Reg28:ADCRESETENDCOUNT3: ADC RESET 3 END COUNT PRP, //Reg29:PRPCOUNT: PULSE REPETITION PERIOD COUNT CONTROL1_VAL, //Reg30:CONTROL1: CONTROL REGISTER 1 //timer enabled, averages=3, RED and IR LED pulse ON PD_ALM AND LED_ALM pins 0x00000, //Reg31:?: ?? (ENSEPGAIN + STAGE2EN_LED1 + STG2GAIN_LED1_0DB + CF_LED1_5P + RF_LED1_1M), //Reg32:TIAGAIN: TRANS IMPEDANCE AMPLIFIER GAIN SETTING REGISTER (AMBDAC_0uA + FLTRCNRSEL_500HZ + STAGE2EN_LED2 + STG2GAIN_LED2_0DB + CF_LED2_5P + RF_LED2_1M), //Reg33:TIA_AMB_GAIN: TRANS IMPEDANCE AAMPLIFIER AND AMBIENT CANELLATION STAGE GAIN (LEDCNTRL_VAL), //Reg34:LEDCNTRL: LED CONTROL REGISTER (TX_REF_1 + RST_CLK_ON_PD_ALM_PIN_DISABLE + ADC_BYP_DISABLE + TXBRGMOD_H_BRIDGE + DIGOUT_TRISTATE_DISABLE + XTAL_ENABLE + EN_FAST_DIAG + PDN_TX_OFF + PDN_RX_OFF + PDN_AFE_OFF) //Reg35:CONTROL2: CONTROL REGISTER 2 //bit 9 }; /*********************************************************************************************************** * Variables for the SPI Interaction * ***********************************************************************************************************/ /********************************************************************************************************** * External Variables * **********************************************************************************************************/ /********************************************************************************************************** * Init_AFE44xx_DRDY_Interrupt * **********************************************************************************************************/ void Init_AFE44xx_DRDY_Interrupt (void) { P2DIR &= ~AFE_ADC_DRDY; P2REN |= AFE_ADC_DRDY; // Enable P2.3 internal resistance P2OUT |= AFE_ADC_DRDY; // Set P2.3 as pull-Up resistance P2IES |= AFE_ADC_DRDY; // P2.3 Hi/Lo edge P2IFG &= ~AFE_ADC_DRDY; // P2.3 IFG cleared P2IE &= ~AFE_ADC_DRDY; // P2.3 interrupt disabled } /********************************************************************************************************** * Enable_AFE44xx_DRDY_Interrupt * **********************************************************************************************************/ void Enable_AFE44xx_DRDY_Interrupt (void) { P2IFG &= ~AFE_ADC_DRDY; // P2.3 IFG cleared P2IE |= AFE_ADC_DRDY; // P2.3 interrupt enabled } /********************************************************************************************************** * Disable_AFE44xx_DRDY_Interrupt * **********************************************************************************************************/ void Disable_AFE44xx_DRDY_Interrupt (void) { P2IFG &= ~AFE_ADC_DRDY; // P2.3 IFG cleared P2IE &= ~AFE_ADC_DRDY; // P2.3 interrupt disabled } /********************************************************************************************************** * Set_GPIO * **********************************************************************************************************/ void Set_GPIO(void) { //port set.. //Port 1.1 - AFE_RESETZ, P1.2 - AFE_PDNZ, P2.3 - ADC_RDY, P2.4- PD_ALM, P2.5 - LED_ALM, //P5.7 - DIAG_END P1SEL |= BIT0; P1DIR |= BIT0; P1OUT |= BIT0; P1DIR |= (AFE_RESETZ + AFE_PDNZ); P1OUT |= (AFE_RESETZ + AFE_PDNZ); P2DIR &= ~(AFE_ADC_DRDY + AFE_PD_ALM + AFE_LED_ALM); P5DIR &= ~AFE_DIAG_END; P2SEL = 0x00; P2DIR &= BIT0; P2OUT |= (BIT1 + BIT2 + BIT7); P2DIR |= (BIT1 | BIT2 | BIT7); } /********************************************************************************************************** * Set_UCB1_SPI * **********************************************************************************************************/ void Set_UCB1_SPI(void) { P4SEL |= BIT1+BIT2+BIT3; // Set SPI peripheral bits P4DIR |= BIT0+BIT1+BIT3; // STE, SCLK, and DOUT as output P4DIR &= ~BIT2; // Din as input P4OUT |=BIT0; // Set STE high UCB1