gpio_test.zip_GPIO_Test

// TI File $Revision: /main/4 $ // Checkin $Date: September 7, 2005 17:52:52 $ //########################################################################### // // FILE: Example_280xGpioSetup.c // // TITLE: DSP280x Device GPIO Setup // // ASSUMPTIONS: // // This program requires the DSP280x header files. // // Two different examples are included. Select the example // to execute before compiling using the #define statements // found at the top of the code. // // As supplied, this project is configured for "boot to SARAM" // operation. The 280x Boot Mode table is shown below. // For information on configuring the boot mode of an eZdsp, // please refer to the documentation included with the eZdsp, // // Boot GPIO18 GPIO29 GPIO34 // Mode SPICLKA SCITXDA // SCITXB // ------------------------------------- // Flash 1 1 1 // SCI-A 1 1 0 // SPI-A 1 0 1 // I2C-A 1 0 0 // ECAN-A 0 1 1 // SARAM 0 1 0 <- "boot to SARAM" // OTP 0 0 1 // I/0 0 0 0 // // // DESCRIPTION: // // // Configures the 280x GPIO into two different configurations // This code is verbose to illustrate how the GPIO could be setup. // In a real application, lines of code can be combined for improved // code size and efficency. // // This example only sets-up the GPIO.. nothing is actually done with // the pins after setup. // // In general: // // All pullup resistors are enabled. For ePWMs this may not be desired. // Input qual for communication ports (eCAN, SPI, SCI, I2C) is asynchronous // Input qual for Trip pins (TZ) is asynchronous // Input qual for eCAP and eQEP signals is synch to SYSCLKOUT // Input qual for some I/O's and interrupts may have a sampling window // // //########################################################################### // $TI Release: DSP280x C/C++ Header Files V1.70 $ // $Release Date: July 27, 2009 $ //########################################################################### #include "DSP280x_Device.h" // DSP280x Headerfile Include File #include "DSP280x_Examples.h" // DSP280x Examples Include File void Initgpio_out(void); void Delay(void); void main(void) { // Step 1. Initialize System Control: // PLL, WatchDog, enable Peripheral Clocks // This example function is found in the DSP280x_SysCtrl.c file. InitSysCtrl(); // Step 2. Initalize GPIO: // This example function is found in the DSP280x_Gpio.c file and // illustrates how to set the GPIO to it's default state. // InitGpio(); Skipped for this example // Step 3. Clear all interrupts and initialize PIE vector table: // Disable CPU interrupts DINT; // Initialize PIE control registers to their default state. // The default state is all PIE interrupts disabled and flags // are cleared. // This function is found in the DSP280x_PieCtrl.c file. InitPieCtrl(); // Disable CPU interrupts and clear all CPU interrupt flags: IER = 0x0000; IFR = 0x0000; // Initialize the PIE vector table with pointers to the shell Interrupt // Service Routines (ISR). // This will populate the entire table, even if the interrupt // is not used in this example. This is useful for debug purposes. // The shell ISR routines are found in DSP280x_DefaultIsr.c. // This function is found in DSP280x_PieVect.c. InitPieVectTable(); Initgpio_out(); while(1) { GpioDataRegs.GPATOGGLE.bit.GPIO0=1; GpioDataRegs.GPATOGGLE.bit.GPIO1=1; GpioDataRegs.GPATOGGLE.bit.GPIO2=1; GpioDataRegs.GPATOGGLE.bit.GPIO3=1; GpioDataRegs.GPATOGGLE.bit.GPIO4=1; GpioDataRegs.GPATOGGLE.bit.GPIO5=1; GpioDataRegs.GPATOGGLE.bit.GPIO6=1; GpioDataRegs.GPATOGGLE.bit.GPIO7=1; GpioDataRegs.GPATOGGLE.bit.GPIO8=1; GpioDataRegs.GPATOGGLE.bit.GPIO9=1; GpioDataRegs.GPATOGGLE.bit.GPIO10=1; GpioDataRegs.GPATOGGLE.bit.GPIO11=1; GpioDataRegs.GPATOGGLE.bit.GPIO29=1; GpioDataRegs.GPATOGGLE.bit.GPIO31=1; GpioDataRegs.GPBTOGGLE.bit.GPIO32=1; GpioDataRegs.GPBTOGGLE.bit.GPIO33=1; GpioDataRegs.GPBTOGGLE.bit.GPIO34=1; Delay(); } } void Initgpio_out(void) { EALLOW; GpioCtrlRegs.GPAPUD.all=0x00000000; GpioCtrlRegs.GPBPUD.bit.GPIO32=0; GpioCtrlRegs.GPBPUD.bit.GPIO33=0; GpioCtrlRegs.GPAMUX1.bit.GPIO0=0; GpioCtrlRegs.GPAMUX1.bit.GPIO1=0; GpioCtrlRegs.GPAMUX1.bit.GPIO2=0; GpioCtrlRegs.GPAMUX1.bit.GPIO3=0; GpioCtrlRegs.GPAMUX1.bit.GPIO4=0; GpioCtrlRegs.GPAMUX1.bit.GPIO5=0; GpioCtrlRegs.GPAMUX1.bit.GPIO6=0; GpioCtrlRegs.GPAMUX1.bit.GPIO7=0; GpioCtrlRegs.GPAMUX1.bit.GPIO8=0; GpioCtrlRegs.GPAMUX1.bit.GPIO9=0; GpioCtrlRegs.GPAMUX1.bit.GPIO10=0; GpioCtrlRegs.GPAMUX1.bit.GPIO11=0; GpioCtrlRegs.GPAMUX2.bit.GPIO29=0; GpioCtrlRegs.GPAMUX2.bit.GPIO31=0; GpioCtrlRegs.GPBMUX1.bit.GPIO32=0; GpioCtrlRegs.GPBMUX1.bit.GPIO33=0; GpioCtrlRegs.GPBMUX1.bit.GPIO34=0; GpioCtrlRegs.GPADIR.bit.GPIO0=1; GpioCtrlRegs.GPADIR.bit.GPIO1=1; GpioCtrlRegs.GPADIR.bit.GPIO2=1; GpioCtrlRegs.GPADIR.bit.GPIO3=1; GpioCtrlRegs.GPADIR.bit.GPIO4=1; GpioCtrlRegs.GPADIR.bit.GPIO5=1; GpioCtrlRegs.GPADIR.bit.GPIO6=1; GpioCtrlRegs.GPADIR.bit.GPIO7=1; GpioCtrlRegs.GPADIR.bit.GPIO8=1; GpioCtrlRegs.GPADIR.bit.GPIO9=1; GpioCtrlRegs.GPADIR.bit.GPIO10=1; GpioCtrlRegs.GPADIR.bit.GPIO11=1; GpioCtrlRegs.GPADIR.bit.GPIO29=1; GpioCtrlRegs.GPADIR.bit.GPIO31=1; GpioCtrlRegs.GPBDIR.bit.GPIO32=1; GpioCtrlRegs.GPBDIR.bit.GPIO33=1; GpioCtrlRegs.GPBDIR.bit.GPIO34=1; EDIS; } void Delay(void) { short i; for(i=0;i<4000;i++){} } //=========================================================================== // No more. //===========================================================================