103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/***************************************************************
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*
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* OpenBeacon.org - USB CDC + FreeRTOS Pipes Demo
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*
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* Copyright 2011 Milosch Meriac <meriac@openbeacon.de>
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*
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***************************************************************
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <openbeacon.h>
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static BOOL vTasksRunning = FALSE;
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/*
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* overwrite default_putchar with USB CDC ACM
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* output to enable USB support for debug_printf
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*/
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BOOL default_putchar(uint8_t data)
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{
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if (vTasksRunning)
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CDC_PutChar (data);
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/* always send out over serial port as well */
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UARTSendChar (data);
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return TRUE;
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}
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static void serial_task(void *handle)
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{
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int i;
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(void) handle;
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portCHAR data;
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vTasksRunning = TRUE;
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i = 0;
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for (;;)
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{
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debug_printf("%04i: Hello Task! (%04i bytes free heap memory)\n", i++,
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xPortGetFreeHeapSize());
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GPIOSetValue(LED_PORT, LED_BIT, LED_ON);
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vTaskDelay(10 / portTICK_RATE_MS);
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GPIOSetValue(LED_PORT, LED_BIT, LED_OFF);
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while (CDC_Recv(&data, sizeof(data), 990))
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UARTSendChar(data);
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}
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}
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int main(void)
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{
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/* Enable CT32B1 Timer, IOCON, and USB */
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LPC_SYSCON->SYSAHBCLKCTRL |= (EN_CT32B1 | EN_USB_REG | EN_IOCON);
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/* Initialize GPIO */
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GPIOInit();
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/* Set LED port pin to output */
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GPIOSetDir(LED_PORT, LED_BIT, 1);
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GPIOSetValue(LED_PORT, LED_BIT, 0);
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/* CDC Initialization */
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CDC_Init();
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/* USB Initialization */
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USB_Init();
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/* Connect to USB port */
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USB_Connect(1);
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/* Update System Core Clock Value */
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SystemCoreClockUpdate();
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/* NVIC is installed inside UARTInit file. */
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UARTInit(115200, 0);
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/* the following text is printed on the serial port as vTasksRunning
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* is not yet set to TRUE in serial_task - which will redirect
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* debug output to the CDC ACM USB serial device.
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*/
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debug_printf("Hello World!\n");
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/* Create CDC ACM task */
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xTaskCreate(serial_task, (const signed char*) "Serial", TASK_SERIAL_STACK_SIZE, NULL, TASK_SERIAL_PRIORITY, NULL);
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/* Start the tasks running. */
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vTaskStartScheduler();
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return 0;
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}
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