00001 /* ---------------------------------------------------------------------------- 00002 * SAM Software Package License 00003 * ---------------------------------------------------------------------------- 00004 * Copyright (c) 2015, Atmel Corporation 00005 * 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions are met: 00010 * 00011 * - Redistributions of source code must retain the above copyright notice, 00012 * this list of conditions and the disclaimer below. 00013 * 00014 * Atmel's name may not be used to endorse or promote products derived from 00015 * this software without specific prior written permission. 00016 * 00017 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR 00018 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00019 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 00020 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, 00021 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00022 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 00023 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00024 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00025 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 00026 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 * ---------------------------------------------------------------------------- 00028 */ 00029 00030 /** 00031 * \page usb_host_cdc USB Host CDC Example 00032 * 00033 * \section Purpose 00034 * 00035 * This example shows how to implement a USB host CDC 00036 * on SAM V71 Xplained Ultra board. 00037 * 00038 * \section Requirements 00039 * This package can be used with SAM V71 Xplained Ultra board. 00040 * 00041 * \section Description 00042 * 00043 * After loading the application, connect the board to a USB 00044 * device CDC. 00045 * The example is a bridge between a USART from the main microchip 00046 * and the USB host CDC interface 00047 * 00048 * \section Usage 00049 * 00050 * -# Build the program and download it inside the SAM V71 Xplained Ultra board. 00051 * Please refer to the Getting Started with SAM V71 Microcontrollers.pdf 00052 * -# On the computer, open and configure a terminal application 00053 * (e.g. HyperTerminal on Microsoft Windows) with these settings: 00054 * - 115200 baud rates 00055 * - 8 bits of data 00056 * - No parity 00057 * - 1 stop bit 00058 * - No flow control 00059 * -# Connect the CDC device such as another board with usb device cdc 00060 * application to SAM V71 Xplained Ultra board with the OTG wire. 00061 * -# Start the application. In the terminal window, the 00062 * following text should appear (values depend on the board and chip used): 00063 * \code 00064 * -- USB HOST CDC Example xxx -- 00065 * -- xxxxxx-xx 00066 * -- Compiled: xxx xx xxxx xx:xx:xx -- 00067 * \endcode 00068 * -# Human interface on SAM V71 Xplained Ultra board.: 00069 * - SAM V71 USART used USART2 on J505 connector 00070 * - Led 0 is continuously on when a device is connected 00071 * - Led 0 blinks when USB host has checked and enabled CDC interface 00072 * - The blink is slow (1s) with low speed device 00073 * - The blink is normal (0.5s) with full speed device 00074 * - The blink is fast (0.25s) with high speed device 00075 * - Led 1 is on during data transfer between CDC and UART 00076 * 00077 * \section References 00078 * - usb_host_cdc/main.c 00079 * - usb_host_cdc/ui.c 00080 * - usb_host_cdc/usart_cdc.c 00081 * - led.c 00082 * - USBH.c 00083 * - USBH_HAL.c 00084 * - uhi_cdc.c 00085 */ 00086 00087 #include "board.h" 00088 #include "conf_usb_host.h" 00089 #include "ui.h" 00090 00091 const Pin USB_HOST[] = PINS_VBUS_EN; 00092 /** Pins to configure for the application.*/ 00093 const Pin UsartPins[] = {PINS_USART}; 00094 /*! \brief Main function. Execution starts here. 00095 */ 00096 int main(void) 00097 { 00098 00099 WDT_Disable( WDT ) ; 00100 00101 SCB_EnableICache(); 00102 SCB_EnableDCache(); 00103 00104 /* Output example information */ 00105 printf("-- USB HOST CDC Example %s --\n\r", SOFTPACK_VERSION); 00106 printf("-- %s\n\r", BOARD_NAME); 00107 printf( "-- Compiled: %s %s With %s--\n\r", __DATE__, __TIME__ , COMPILER_NAME) ; 00108 00109 TimeTick_Configure(); 00110 PIO_Configure(USB_HOST, PIO_LISTSIZE(USB_HOST)); 00111 /* Configure USART pins*/ 00112 PIO_Configure( UsartPins, PIO_LISTSIZE( UsartPins ) ) ; 00113 PIO_Clear(USB_HOST); 00114 00115 /* Initialize interrupts */ 00116 irq_initialize_vectors(); 00117 cpu_irq_enable(); 00118 00119 00120 /* Initialize the user interface */ 00121 ui_init(); 00122 00123 /* Start USB host stack */ 00124 USBH_start(); 00125 00126 /* The main loop manages only the power mode 00127 because the USB management is done by interrupt */ 00128 while (true) { 00129 //sleepmgr_enter_sleep(); 00130 } 00131 } 00132