//########################################################################### // // FILE: F2837xD_ECap.c // // TITLE: F2837xD eCAP Initialization & Support Functions. // //########################################################################### // // $Release Date: $ // $Copyright: // Copyright (C) 2013-2022 Texas Instruments Incorporated - http://www.ti.com/ // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions // are met: // // Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // // Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the // distribution. // // Neither the name of Texas Instruments Incorporated nor the names of // its contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // $ //########################################################################### // // Included Files // #include "F2837xD_device.h" #include "F2837xD_Examples.h" // // InitECap - This function initializes the eCAP(s) to a known state. // void InitECap(void) { // Initialize eCAP1/2/3/4/5/6 //tbd... } // // InitECapGpio - This function initializes GPIO pins to function as ECAP pins // Each GPIO pin can be configured as a GPIO pin or up to 3 // different peripheral functional pins. By default all pins // come up as GPIO inputs after reset. // Caution: // For each eCAP peripheral // Only one GPIO pin should be enabled for ECAP operation. // Comment out other unwanted lines. // void InitECapGpio() { } // // InitECap1Gpio - Initialize ECAP1 GPIOs // void InitECap1Gpio(Uint16 pin) { EALLOW; InputXbarRegs.INPUT7SELECT = pin; // Set eCAP1 source to GPIO-pin EDIS; } // // InitECap2Gpio - Initialize ECAP2 GPIOs // void InitECap2Gpio(Uint16 pin) { EALLOW; InputXbarRegs.INPUT8SELECT = pin; // Set eCAP2 source to GPIO-pin EDIS; } // // InitECap3Gpio - Initialize ECAP3 GPIOs // void InitECap3Gpio(Uint16 pin) { EALLOW; InputXbarRegs.INPUT9SELECT = pin; // Set eCAP3 source to GPIO-pin EDIS; } // // InitECap4Gpio - Initialize ECAP4 GPIOs // void InitECap4Gpio(Uint16 pin) { EALLOW; InputXbarRegs.INPUT10SELECT = pin; // Set eCAP4 source to GPIO-pin EDIS; } // // InitECap5Gpio - Initialize ECAP5 GPIOs // void InitECap5Gpio(Uint16 pin) { EALLOW; InputXbarRegs.INPUT11SELECT = pin; // Set eCAP5 source to GPIO-pin EDIS; } // // InitECap6Gpio - Initialize ECAP6 GPIOs // void InitECap6Gpio(Uint16 pin) { EALLOW; InputXbarRegs.INPUT12SELECT = pin; // Set eCAP6 source to GPIO-pin EDIS; } // // InitAPwm1Gpio - Initialize EPWM1 GPIOs // void InitAPwm1Gpio() { EALLOW; OutputXbarRegs.OUTPUT3MUX0TO15CFG.bit.MUX0 = 3; // Select ECAP1.OUT on Mux0 OutputXbarRegs.OUTPUT3MUXENABLE.bit.MUX0 = 1; // Enable MUX0 for ECAP1.OUT GpioCtrlRegs.GPAMUX1.bit.GPIO5 = 3; // Select OUTPUTXBAR3 on GPIO5 EDIS; } // // End of file //