00001 /* ---------------------------------------------------------------------------- */ 00002 /* Atmel Microcontroller Software Support */ 00003 /* SAM Software Package License */ 00004 /* ---------------------------------------------------------------------------- */ 00005 /* Copyright (c) 2015, Atmel Corporation */ 00006 /* */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without */ 00010 /* modification, are permitted provided that the following condition is met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, */ 00013 /* this list of conditions and the disclaimer below. */ 00014 /* */ 00015 /* Atmel's name may not be used to endorse or promote products derived from */ 00016 /* this software without specific prior written permission. */ 00017 /* */ 00018 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ 00019 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ 00020 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ 00021 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ 00022 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ 00023 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ 00024 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ 00025 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ 00026 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ 00027 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 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 on SAMV7/E7 Microcontrollers. 00036 * 00037 * \section Requirements 00038 * This package can be used with SAMV71 Xplained Ultra board or SAME70 Xplained board 00039 * 00040 * \section Description 00041 * 00042 * After loading the application, connect the board to a USB 00043 * device CDC. 00044 * The example is a bridge between a USART from the main microchip 00045 * and the USB host CDC interface 00046 * 00047 * \section Usage 00048 * 00049 * -# Build the program and download it inside the board. 00050 * Please refer to the Getting Started with SAM V71/E70 Microcontrollers.pdf 00051 * -# On the computer, open and configure a terminal application 00052 * (e.g. HyperTerminal on Microsoft Windows) with these settings: 00053 * - 115200 baud rate 00054 * - 8 bits of data 00055 * - No parity 00056 * - 1 stop bit 00057 * - No flow control 00058 * -# Connect the CDC device such as another board with usb device cdc 00059 * application to SAM V71 Xplained Ultra board or SAME70 Xplained board with the OTG wire. 00060 * -# Start the application. In the terminal window, the 00061 * following text should appear (values depend on the board and chip used): 00062 * \code 00063 * -- USB HOST CDC Example xxx -- 00064 * -- xxxxxx-xx 00065 * -- Compiled: xxx xx xxxx xx:xx:xx -- 00066 * \endcode 00067 * -# Human interface on SAM V71 Xplained Ultra board or SAME70 Xplained board.: 00068 * - SAM V7/E7 USART used USART2 on J505 connector 00069 * - Led 0 is continuously on when a device is connected 00070 * - Led 0 blinks when USB host has checked and enabled CDC interface 00071 * - The blink is slow (1s) with low speed device 00072 * - The blink is normal (0.5s) with full speed device 00073 * - The blink is fast (0.25s) with high speed device 00074 * - Led 1 is on during data transfer between CDC and UART 00075 * 00076 * \section References 00077 * - usb_host_cdc/main.c 00078 * - usb_host_cdc/ui.c 00079 * - usb_host_cdc/usart_cdc.c 00080 * - led.c 00081 * - USBH.c 00082 * - USBH_HAL.c 00083 * - uhi_cdc.c 00084 */ 00085 00086 #include "board.h" 00087 #include "conf_usb_host.h" 00088 #include "ui.h" 00089 00090 const Pin USB_HOST[] = {PINS_VBUS_EN}; 00091 /** Pins to configure for the application.*/ 00092 const Pin UsartPins[] = {PINS_USART}; 00093 /*! \brief Main function. Execution starts here. 00094 */ 00095 int main(void) 00096 { 00097 00098 WDT_Disable(WDT); 00099 00100 SCB_EnableICache(); 00101 SCB_EnableDCache(); 00102 00103 /* Output example information */ 00104 printf("-- USB HOST CDC Example %s --\n\r", SOFTPACK_VERSION); 00105 printf("-- %s\n\r", BOARD_NAME); 00106 printf("-- Compiled: %s %s With %s--\n\r", __DATE__, __TIME__ , 00107 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