diff options
Diffstat (limited to 'examples/vf6xx_colibri_m4/demo_apps/gpio_sample/main.c')
-rw-r--r-- | examples/vf6xx_colibri_m4/demo_apps/gpio_sample/main.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/examples/vf6xx_colibri_m4/demo_apps/gpio_sample/main.c b/examples/vf6xx_colibri_m4/demo_apps/gpio_sample/main.c new file mode 100644 index 0000000..ae22319 --- /dev/null +++ b/examples/vf6xx_colibri_m4/demo_apps/gpio_sample/main.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * Copyright (c) 2016, Toradex AG + * 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 <FreeRTOS.h> +#include <task.h> +#include <ccm_vf6xx.h> +#include <lpuart_vf6xx.h> +#include <gpio_vf6xx.h> +#include "debug_console_vf6xx.h" + +struct hello_world { + const char *text; + int delay; +}; + +static struct hello_world task_a = { + .text = "Hello, World!\r\n", + .delay = 700, +}; + +void switch_task(void *p) +{ + struct hello_world *data = (struct hello_world *)p; + + for (;;) { + if (GPIO_ReadPinInput(GPIO(38), 38)) + PRINTF(data->text); + + vTaskDelay(data->delay); + } +} + +void led_toggle_task(void *p) +{ + for (;;) { + GPIO_TogglePinOutput(GPIO(39), 39, gpioPinSet); + + vTaskDelay(500); + } +} + +int main(void) +{ + /* Init Clock Control and UART */ + CCM_GetClocks(); + CCM_ControlGate(ccmCcgrGateUart2, ccmClockNeededAll); + + vf6xx_DbgConsole_Init(UART2, ccmIpgBusClk, 115200); + + gpio_init_t ledIn = {.pin = 38, .direction = gpioDigitalInput}; + gpio_init_t ledOut = {.pin = 39, .direction = gpioDigitalOutput}; + GPIO_Init(GPIO(38), &ledIn); + GPIO_Init(GPIO(39), &ledOut); + + xTaskCreate(switch_task, "Task A", configMINIMAL_STACK_SIZE, + &task_a, tskIDLE_PRIORITY, NULL); + + xTaskCreate(led_toggle_task, "Task B", configMINIMAL_STACK_SIZE, + &task_a, tskIDLE_PRIORITY, NULL); + + vTaskStartScheduler(); + + while (true); +} |