/* * Copyright (C) 2013-2016 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. * */ /** * \file main.c * * \brief This file demonstrates toggling gpio pins high and low * using GPIO dal API's. * */ /* ========================================================================== */ /* Include Files */ /* ========================================================================== */ #include "stdint.h" #include #if defined (SOC_AM572x) || defined (SOC_AM571x) #include #endif #include #include #include /* ========================================================================== */ /* Macros */ /* ========================================================================== */ /* None */ /* ========================================================================== */ /* Global Variables */ /* ========================================================================== */ uint32_t pinDirection = GPIO_DIR_OUTPUT; /*To use UARTConfigPuts(uartBaseAddr, function for prints*/ /*To use UARTConfigPuts function for prints*/ #if (defined (SOC_AM572x)) || (defined (SOC_AM571x)) uint32_t uartBaseAddr = CSL_MPU_UART3_REGS; #endif #if defined (SOC_TDA2EX) || defined (SOC_TDA2XX) || defined (SOC_DRA75X) uint32_t uartBaseAddr = SOC_UART1_BASE; #endif #if defined (SOC_TDA3XX) || defined (SOC_DRA78X) uint32_t uartBaseAddr = SOC_UART3_BASE; #endif #if (defined (SOC_AM572x)) || (defined (SOC_AM571x)) uint32_t gpio_base_address = CSL_MPU_GPIO7_REGS; uint32_t gpio_pin = 8; #elif defined (SOC_TDA2EX) || defined (SOC_TDA2XX) || defined (SOC_DRA75X) uint32_t gpio_base_address = SOC_GPIO1_BASE; uint32_t gpio_pin = 14; #elif defined (SOC_TDA3XX) || defined (SOC_DRA78X) uint32_t gpio_base_address = SOC_GPIO4_BASE; uint32_t gpio_pin = 9; #endif /* ========================================================================== */ /* Function Definitions */ /* ========================================================================== */ void padconfig_PrcmEnable() { #if defined (SOC_AM572x) || defined (SOC_AM571x) /*Pad configurations */ Board_initCfg boardCfg; boardCfg = BOARD_INIT_UNLOCK_MMR | BOARD_INIT_UART_STDIO | BOARD_INIT_MODULE_CLOCK | BOARD_INIT_PINMUX_CONFIG; Board_init(boardCfg); HW_WR_REG32(CSL_MPU_CORE_PAD_IO_REGISTERS_REGS+CSL_CONTROL_CORE_PAD_IO_PAD_DCAN1_TX,0x0006000E); /*Enable GPIO clock*/ HW_WR_REG32(CSL_MPU_L4PER_CM_CORE_REGS+CSL_L4PER_CM_CORE_COMPONENT_CM_L4PER_GPIO2_CLKCTRL_REG,0x102); while ((HW_RD_REG32(CSL_MPU_L4PER_CM_CORE_REGS+CSL_L4PER_CM_CORE_COMPONENT_CM_L4PER_GPIO2_CLKCTRL_REG) & (0x00030000U)) != 0x0) { ; } HW_WR_REG32(CSL_MPU_L4PER_CM_CORE_REGS+CSL_L4PER_CM_CORE_COMPONENT_CM_L4PER_GPIO3_CLKCTRL_REG,0x102); while ((HW_RD_REG32(CSL_MPU_L4PER_CM_CORE_REGS+CSL_L4PER_CM_CORE_COMPONENT_CM_L4PER_GPIO3_CLKCTRL_REG) & (0x00030000U)) != 0x0) { ; } HW_WR_REG32(CSL_MPU_L4PER_CM_CORE_REGS+CSL_L4PER_CM_CORE_COMPONENT_CM_L4PER_GPIO4_CLKCTRL_REG,0x102); while ((HW_RD_REG32(CSL_MPU_L4PER_CM_CORE_REGS+CSL_L4PER_CM_CORE_COMPONENT_CM_L4PER_GPIO4_CLKCTRL_REG) & (0x00030000U)) != 0x0) { ; } #endif #if defined (SOC_TDA2XX) || defined (SOC_TDA2EX) || defined (SOC_DRA75X) /*Pad configurations */ HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_UART1_RXD,0x00040000); HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_UART1_TXD,0x00040000); HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_DCAN1_TX,0x0006000E); /*Enable GPIO clock*/ HW_WR_REG32(SOC_L4PER_CM_CORE_BASE+CM_L4PER_GPIO2_CLKCTRL,0x102); while ((HW_RD_REG32(SOC_L4PER_CM_CORE_BASE+CM_L4PER_GPIO2_CLKCTRL) & (0x00030000U)) != 0x0) { ; } HW_WR_REG32(SOC_L4PER_CM_CORE_BASE+CM_L4PER_GPIO3_CLKCTRL,0x102); while ((HW_RD_REG32(SOC_L4PER_CM_CORE_BASE+CM_L4PER_GPIO3_CLKCTRL) & (0x00030000U)) != 0x0) { ; } HW_WR_REG32(SOC_L4PER_CM_CORE_BASE+CM_L4PER_GPIO4_CLKCTRL,0x102); while ((HW_RD_REG32(SOC_L4PER_CM_CORE_BASE+CM_L4PER_GPIO4_CLKCTRL) & (0x00030000U)) != 0x0) { ; } /* Set the UART Parameters */ UARTConfigInit(uartBaseAddr, BAUD_RATE_115200, UART_WORD_LENGTH_8, UART_STOP_BIT_1, UART_NO_PARITY, UART_16x_MODE); #endif #if defined (SOC_TDA3XX) || defined (SOC_DRA78X) HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_IO_SPI1_SCLK,0x00040001); HW_WR_REG32(SOC_CORE_PAD_IO_REGISTERS_BASE+CTRL_CORE_PAD_IO_SPI1_CS0,0x00000001); /* Set the access to the GPMC registers - Enable GPMC Clock */ HW_WR_REG32(SOC_L4PER_CM_CORE_BASE + CM_L4PER_GPIO2_CLKCTRL, 0x102); while ((HW_RD_REG32(SOC_L4PER_CM_CORE_BASE + CM_L4PER_GPIO2_CLKCTRL) & (0x00030000U)) != 0x0) { ; } HW_WR_REG32(SOC_L4PER_CM_CORE_BASE + CM_L4PER_GPIO3_CLKCTRL, 0x102); while ((HW_RD_REG32(SOC_L4PER_CM_CORE_BASE + CM_L4PER_GPIO2_CLKCTRL) & (0x00030000U)) != 0x0) { ; } HW_WR_REG32(SOC_L4PER_CM_CORE_BASE + CM_L4PER_GPIO4_CLKCTRL, 0x102); while ((HW_RD_REG32(SOC_L4PER_CM_CORE_BASE + CM_L4PER_GPIO2_CLKCTRL) & (0x00030000U)) != 0x0) { ; } /* Set the UART Parameters */ UARTConfigInit(uartBaseAddr, BAUD_RATE_115200, UART_WORD_LENGTH_8, UART_STOP_BIT_1, UART_NO_PARITY, UART_16x_MODE); #endif } void delay(void) { volatile uint32_t i; for (i = 0; i < 4000000; i++) {} } int main(void) { volatile uint32_t checkOutput = 1; padconfig_PrcmEnable(); UARTConfigPuts(uartBaseAddr,"\nGPIO Output App", -1); UARTConfigPuts(uartBaseAddr,"\nGenerating a square wave on GPIO pin", -1); #if defined (SOC_AM572x) || defined (SOC_TDA2XX) || defined (SOC_DRA75X) || defined (SOC_AM571x) || defined (SOC_TDA2EX) UARTConfigPuts(uartBaseAddr,"\nProbe the GPIO1 pin 14 on JP2 connector - pin 1 on EVM", -1); #elif defined (SOC_TDA3XX) || defined (SOC_DRA78X) UARTConfigPuts(uartBaseAddr,"\nProbe the GPIO4 pin 9 on J6108 connector - pin 1 on EVM", -1); #endif GPIOModuleReset(gpio_base_address); GPIOModuleEnable(gpio_base_address); GPIODirModeSet(gpio_base_address, gpio_pin, pinDirection); while (checkOutput) { GPIOPinWrite(gpio_base_address, gpio_pin, GPIO_PIN_HIGH); delay(); GPIOPinWrite(gpio_base_address, gpio_pin, GPIO_PIN_LOW); delay(); } return 0; } /********************************* End of file ******************************/