diff options
Diffstat (limited to 'examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/main.c')
-rw-r--r-- | examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/main.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/main.c b/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/main.c new file mode 100644 index 0000000..c130c31 --- /dev/null +++ b/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/main.c @@ -0,0 +1,94 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o 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. + * + * o Neither the name of Freescale Semiconductor, Inc. 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 HOLDER 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. + */ + +#include <stdio.h> +#include "board.h" +#include "gpio_pins.h" +#include "gpio_imx.h" +#include "gpio_ctrl.h" +#include "debug_console_imx.h" + + +/* button relevent variables */ +static uint8_t keyPressCount; +static uint8_t keyPressCountOld; + + +/****************************************************************************** +* +* Function Name: main +* Comments: Hello World Example with GPIO. +* This example include: +* Configure BUTTON1 as GPIO functionality +* and check the button's state(pressed or released). According to the Button +* status, copy it to the LED +* +******************************************************************************/ +int main(void) +{ + /* hardware initialiize, include RDC, IOMUX, Uart debug initialize */ + hardware_init(); + PRINTF("\n\r\n\r\n\r"); + PRINTF("=======================================================\n\r"); + PRINTF("================= GPIO Bank 2 Example =================\n\r"); + PRINTF("===== Change the Led Status according to the Key ======\n\r"); + PRINTF("=======================================================\n\r"); + + /* GPIO module initialize, configure "LED" as output and button as interrupt mode. */ + GPIO_Ctrl_Init(); + + keyPressCount = 0; + keyPressCountOld = 0; + + /* Initialize enviroments and led status */ + keyPressCount = GPIO_Ctrl_GetKey(BOARD_GPIO_SWITCH1_CONFIG); + keyPressCountOld = keyPressCount; + GPIO_Ctrl_WriteLed(BOARD_GPIO_LED1_CONFIG, BOARD_GPIO_LED1_RDC_PDAP, keyPressCount); + + PRINTF("================== Hello World GPIO ===================\n\r"); + + while(true) + { + /* wait for user change button leve */ + keyPressCount = GPIO_Ctrl_GetKey(BOARD_GPIO_SWITCH1_CONFIG); + /* If button change, than print and update LED */ + if(keyPressCount != keyPressCountOld) + { + keyPressCountOld = keyPressCount; + GPIO_Ctrl_WriteLed(BOARD_GPIO_LED1_CONFIG, BOARD_GPIO_LED1_RDC_PDAP, keyPressCount); + PRINTF("================== keyPressCount = %d ==================\n\r", keyPressCount); + } + } +} + + +/******************************************************************************* + * EOF + ******************************************************************************/ |