f280x_en.c

DSP280X芯片的编程简单例子

/* ==================================================================================
File name:       F280X_EN.C
                    
Originator:	Digital Control Systems Group
			Texas Instruments

Description:  This program configures the I/O pins and enables/disables the drive on DMC1500

Target: TMS320F280x family

=====================================================================================
History:
-------------------------------------------------------------------------------------
 04-15-2005	Version 3.20: Using DSP280x v. 1.10 or higher 
------------------------------------------------------------------------------------*/

#include "DSP280x_Device.h"
#include "f280x_en.h"

void F280X_DRIVE_Init(DRIVE *p) 
{ 

        EALLOW;                       // Enable EALLOW
		// IOPB4: strobe_ (T1PWM_GPIOA6); IOPB6: enable_ (TDIRA_GPIOA11)
        GpioCtrlRegs.GPAMUX2.bit.GPIO27 = 0;  // GPIO27 is T1PWM_GPIOA6
        GpioCtrlRegs.GPAMUX1.bit.GPIO13 = 0;  // GPIO13 is TDIRA_GPIOA11

		// config IOPB27 & IOPB13 as outputs and output "1" to disable drive
		GpioCtrlRegs.GPADIR.bit.GPIO27 = 1;   // GPIO27 is T1PWM_GPIOA6
		GpioCtrlRegs.GPADIR.bit.GPIO13 = 1;   // GPIO13 is TDIRA_GPIOA11
        EDIS;                         // Disable EALLOW

}

void F280X_DRIVE_Update(DRIVE *p) 
{       
       if (p->EnableFlag==1)      // Enable PWM drive on DMC1500
       {  // IOPB4 (T1PWM_GPIOA6) & IOPB6 (T1PWM_GPIOA11)
       	GpioDataRegs.GPADAT.bit.GPIO27 = 0;  // IOPB4 low (T1PWM_GPIOA6) 
       	GpioDataRegs.GPADAT.bit.GPIO27 = 1;  // IOPB4 high (T1PWM_GPIOA6) 
       	GpioDataRegs.GPADAT.bit.GPIO13 = 0;  // IOPB6 low (T1PWM_GPIOA11)
       }
       else if (p->EnableFlag==0)   // Disable PWM drive on DMC1500
       {    // IOPB4 (T1PWM_GPIOA6) & IOPB6 (T1PWM_GPIOA11) outputs high
		GpioDataRegs.GPADAT.bit.GPIO27 = 1;  // GPIO27 is T1PWM_GPIOA6
		GpioDataRegs.GPADAT.bit.GPIO13 = 1;  // GPIO13 is TDIRA_GPIOA11
       }   
       
}