Texas Instruments C28 Series, Student Manual

Page: 55 / 342

Example of Peripheral Structure .h file
Example of Peripheral Structure .h file
Example of Peripheral Structure .h file
Example of Peripheral Structure .h file
/* ADC Individual Register Bit Definitions */ /* ADC Individual Register Bit Definitions */
struct struct ADCTRL1_BITS { // bits description ADCTRL1_BITS { // bits description
Uint16 rsvd1:4; // 3:0 reserved Uint16 rsvd1:4; // 3:0 reserved
Uint16 SEQ_CASC:1; // 4 Cascaded sequencer mode Uint16 SEQ_CASC:1; // 4 Cascaded sequencer mode
Uint16 rsvd2:1; // 5 reserved Uint16 rsvd2:1; // 5 reserved
Uint16 CONT_RUN:1; // 6 Continuous run Uint16 CONT_RUN:1; // 6 Continuous run
Uint16 CPS:1; // 7 ADC core clock Uint16 CPS:1; // 7 ADC core clock prescaler prescaler
Uint16 ACQ_PS:4; Uint16 ACQ_PS:4; // 11:8 Acquisition window size // 11:8 Acquisition window size
Uint16 SUSMOD:2; // 13:12 Emulation suspend mode Uint16 SUSMOD:2; // 13:12 Emulation suspend mode
Uint16 RESET:1; Uint16 RESET:1; // 14 ADC reset // 14 ADC reset
Uint16 rsvd3:1;
Uint16 rsvd3:1;
// 15 reserved
// 15 reserved
};
};
/* Allow access to the bit fields or entire register */
/* Allow access to the bit fields or entire register */
union ADCTRL1_REG {
union ADCTRL1_REG {
Uint16 all; Uint16 all;
struct struct ADCTRL1_BITS bit; ADCTRL1_BITS bit;
}; };
// ADC External References & Function Declarations: // ADC External References & Function Declarations:
extern volatile extern volatile struct struct ADC_REGS ADC_REGS AdcRegs AdcRegs ; ;
Example
Example
Adc
Adc
.h
.h
#include “DSP281x_Device.h” #include “DSP281x_Device.h”
Void Void InitAdc InitAdc (void) (void)
{ {
/* Reset the ADC module */ /* Reset the ADC module */
AdcRegs AdcRegs .ADCTRL1.bit.RESET = 1; .ADCTRL1.bit.RESET = 1;
/* configure the ADC register */ /* configure the ADC register */
AdcRegs AdcRegs .ADCTRL1.all = 0x0710; .ADCTRL1.all = 0x0710;
};
};
Example Example Adc Adc .c or main.c .c or main.c
C28x - Peripheral Registers Header Files 3 - 7