Enrico Marinoni / Mbed 2 deprecated Spirit1_RX

RX part for SPIRIT1, P2P application.

Dependencies:   mbed

main.cpp@0:3e75e4bf3124, 2018-01-05 (annotated)

Committer:
emcu
Date:
Fri Jan 05 19:11:17 2018 +0000
Revision:
0:3e75e4bf3124
RX part for SPIRIT1, P2P application.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emcu 0:3e75e4bf3124 1 /**
emcu 0:3e75e4bf3124 2
emcu 0:3e75e4bf3124 3 RX RX RX
emcu 0:3e75e4bf3124 4
emcu 0:3e75e4bf3124 5 Date: Jan 2018
emcu 0:3e75e4bf3124 6 Version: 1.0
emcu 0:3e75e4bf3124 7 More info are here:
emcu 0:3e75e4bf3124 8 http://www.emcu.eu/how-to-use-the-x-nucleo-ids01a4-spirit1-in-p2p-mode-ack-under-mbed/
emcu 0:3e75e4bf3124 9
emcu 0:3e75e4bf3124 10 ******************************************************************************
emcu 0:3e75e4bf3124 11 * @file main.cpp
emcu 0:3e75e4bf3124 12 * @author Rosarium PILA, STMicroelectronics
emcu 0:3e75e4bf3124 13 * @version V1.0.0
emcu 0:3e75e4bf3124 14 * @date June 19th, 2017
emcu 0:3e75e4bf3124 15 * @brief mbed test application for the STMicroelectronics X-NUCLEO-IDB01A4/5
emcu 0:3e75e4bf3124 16 * Spirit1 Expansion Board
emcu 0:3e75e4bf3124 17 ******************************************************************************
emcu 0:3e75e4bf3124 18 * @attention
emcu 0:3e75e4bf3124 19 *
emcu 0:3e75e4bf3124 20 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
emcu 0:3e75e4bf3124 21 *
emcu 0:3e75e4bf3124 22 * Redistribution and use in source and binary forms, with or without modification,
emcu 0:3e75e4bf3124 23 * are permitted provided that the following conditions are met:
emcu 0:3e75e4bf3124 24 * 1. Redistributions of source code must retain the above copyright notice,
emcu 0:3e75e4bf3124 25 * this list of conditions and the following disclaimer.
emcu 0:3e75e4bf3124 26 * 2. Redistributions in binary form must reproduce the above copyright notice,
emcu 0:3e75e4bf3124 27 * this list of conditions and the following disclaimer in the documentation
emcu 0:3e75e4bf3124 28 * and/or other materials provided with the distribution.
emcu 0:3e75e4bf3124 29 * 3. Neither the name of STMicroelectronics nor the names of its contributors
emcu 0:3e75e4bf3124 30 * may be used to endorse or promote products derived from this software
emcu 0:3e75e4bf3124 31 * without specific prior written permission.
emcu 0:3e75e4bf3124 32 *
emcu 0:3e75e4bf3124 33 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
emcu 0:3e75e4bf3124 34 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
emcu 0:3e75e4bf3124 35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
emcu 0:3e75e4bf3124 36 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
emcu 0:3e75e4bf3124 37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
emcu 0:3e75e4bf3124 38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
emcu 0:3e75e4bf3124 39 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
emcu 0:3e75e4bf3124 40 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
emcu 0:3e75e4bf3124 41 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
emcu 0:3e75e4bf3124 42 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
emcu 0:3e75e4bf3124 43 *
emcu 0:3e75e4bf3124 44 ******************************************************************************
emcu 0:3e75e4bf3124 45 */
emcu 0:3e75e4bf3124 46
emcu 0:3e75e4bf3124 47 #include "mbed.h"
emcu 0:3e75e4bf3124 48 #include "SimpleSpirit1.h"
emcu 0:3e75e4bf3124 49
emcu 0:3e75e4bf3124 50 #include <stdio.h>
emcu 0:3e75e4bf3124 51 #include <string.h>
emcu 0:3e75e4bf3124 52
emcu 0:3e75e4bf3124 53 #define TEST_STR_LEN (32)
emcu 0:3e75e4bf3124 54 static char send_buf[TEST_STR_LEN] ={'S','P','I','R','I','T','1',' ','H','E','L','L','O',' ','W','O','R','L','D',' ','P','2','P',' ','D','E','M','O'};
emcu 0:3e75e4bf3124 55 static char read_buf[TEST_STR_LEN] ={'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
emcu 0:3e75e4bf3124 56
emcu 0:3e75e4bf3124 57 static SimpleSpirit1 &myspirit = SimpleSpirit1::CreateInstance(D11, D12, D3, D9, D10, D2); /* (SPI_CLK) = (D13:PA5:resistorR7 --> D3:PB3:resistorR4)*/
emcu 0:3e75e4bf3124 58
emcu 0:3e75e4bf3124 59 static volatile bool rx_done_flag = false;
emcu 0:3e75e4bf3124 60 static volatile bool tx_done_flag = false;
emcu 0:3e75e4bf3124 61 static volatile bool send_data_flag = false;
emcu 0:3e75e4bf3124 62
emcu 0:3e75e4bf3124 63 static DigitalOut TestLED(D5); /* LED of IDS01A4/5 */
emcu 0:3e75e4bf3124 64 static InterruptIn event(USER_BUTTON); /* Interrupt event to give userinterface to send pkt. */
emcu 0:3e75e4bf3124 65
emcu 0:3e75e4bf3124 66 /**
emcu 0:3e75e4bf3124 67 * @brief callback_func
emcu 0:3e75e4bf3124 68 * @param callback event
emcu 0:3e75e4bf3124 69 * @retval None.
emcu 0:3e75e4bf3124 70 */
emcu 0:3e75e4bf3124 71 static void callback_func(int event)
emcu 0:3e75e4bf3124 72 {
emcu 0:3e75e4bf3124 73 if(event == SimpleSpirit1::RX_DONE)
emcu 0:3e75e4bf3124 74 {
emcu 0:3e75e4bf3124 75 rx_done_flag = 1;
emcu 0:3e75e4bf3124 76 }
emcu 0:3e75e4bf3124 77 else if (event == SimpleSpirit1::TX_DONE)
emcu 0:3e75e4bf3124 78 {
emcu 0:3e75e4bf3124 79 tx_done_flag = 1;
emcu 0:3e75e4bf3124 80 }
emcu 0:3e75e4bf3124 81 }
emcu 0:3e75e4bf3124 82
emcu 0:3e75e4bf3124 83 /**
emcu 0:3e75e4bf3124 84 * @brief set_send_data_flag
emcu 0:3e75e4bf3124 85 * @param None
emcu 0:3e75e4bf3124 86 * @retval None
emcu 0:3e75e4bf3124 87 */
emcu 0:3e75e4bf3124 88 static void set_send_data_flag(void)
emcu 0:3e75e4bf3124 89 {
emcu 0:3e75e4bf3124 90 send_data_flag = 1 ;
emcu 0:3e75e4bf3124 91 }
emcu 0:3e75e4bf3124 92
emcu 0:3e75e4bf3124 93 /**
emcu 0:3e75e4bf3124 94 * @brief send_data
emcu 0:3e75e4bf3124 95 * @param None
emcu 0:3e75e4bf3124 96 * @retval None
emcu 0:3e75e4bf3124 97 */
emcu 0:3e75e4bf3124 98 static void send_data(void)
emcu 0:3e75e4bf3124 99 {
emcu 0:3e75e4bf3124 100 printf("\r\n***Sending a packet***");
emcu 0:3e75e4bf3124 101
emcu 0:3e75e4bf3124 102 while(myspirit.is_receiving()); /* wait for ongoing RX ends */
emcu 0:3e75e4bf3124 103
emcu 0:3e75e4bf3124 104 size_t curr_len = strlen((const char*)send_buf) + 1;
emcu 0:3e75e4bf3124 105 myspirit.send(send_buf, curr_len);
emcu 0:3e75e4bf3124 106 }
emcu 0:3e75e4bf3124 107
emcu 0:3e75e4bf3124 108 /**
emcu 0:3e75e4bf3124 109 * @brief read_rcvd_data
emcu 0:3e75e4bf3124 110 * @param None
emcu 0:3e75e4bf3124 111 * @retval None
emcu 0:3e75e4bf3124 112 */
emcu 0:3e75e4bf3124 113 static void read_rcvd_data(void)
emcu 0:3e75e4bf3124 114 {
emcu 0:3e75e4bf3124 115
emcu 0:3e75e4bf3124 116 for(unsigned int flush_count = 0; flush_count < TEST_STR_LEN; flush_count++) read_buf[flush_count] = 0 ;/* clear the read buffer */
emcu 0:3e75e4bf3124 117
emcu 0:3e75e4bf3124 118 int ret = myspirit.read(read_buf, sizeof(read_buf));
emcu 0:3e75e4bf3124 119
emcu 0:3e75e4bf3124 120 if(ret == 0)
emcu 0:3e75e4bf3124 121 {
emcu 0:3e75e4bf3124 122 printf("\nNothing to read\n\r");
emcu 0:3e75e4bf3124 123 return;
emcu 0:3e75e4bf3124 124 }
emcu 0:3e75e4bf3124 125 printf("\r\n***Received a packet***\r\n\rReceived string = '%s' (len=%d) \n\r", read_buf, ret);
emcu 0:3e75e4bf3124 126
emcu 0:3e75e4bf3124 127 wait_ms(100);
emcu 0:3e75e4bf3124 128 }
emcu 0:3e75e4bf3124 129
emcu 0:3e75e4bf3124 130
emcu 0:3e75e4bf3124 131 /**
emcu 0:3e75e4bf3124 132 * @brief main routine
emcu 0:3e75e4bf3124 133 * @param None
emcu 0:3e75e4bf3124 134 * @retval int
emcu 0:3e75e4bf3124 135 */
emcu 0:3e75e4bf3124 136 int main()
emcu 0:3e75e4bf3124 137 {
emcu 0:3e75e4bf3124 138 TestLED = 0; /* LED off */
emcu 0:3e75e4bf3124 139
emcu 0:3e75e4bf3124 140 myspirit.attach_irq_callback(callback_func);
emcu 0:3e75e4bf3124 141
emcu 0:3e75e4bf3124 142 myspirit.on();
emcu 0:3e75e4bf3124 143
emcu 0:3e75e4bf3124 144 printf("\n\r************** RX (X-NUCLEO-IDS01A4/5) **************\r\n");
emcu 0:3e75e4bf3124 145 printf("Receive a strinbg and back it to Tx\n\r\n\n");
emcu 0:3e75e4bf3124 146
emcu 0:3e75e4bf3124 147 event.rise(&set_send_data_flag); /*User button interrupt trigger to set send data flag */
emcu 0:3e75e4bf3124 148
emcu 0:3e75e4bf3124 149 while(1)
emcu 0:3e75e4bf3124 150 {
emcu 0:3e75e4bf3124 151 __WFE(); /* low power in idle condition., waiting for an event */
emcu 0:3e75e4bf3124 152
emcu 0:3e75e4bf3124 153 if(rx_done_flag)
emcu 0:3e75e4bf3124 154 {
emcu 0:3e75e4bf3124 155 rx_done_flag = false;
emcu 0:3e75e4bf3124 156 read_rcvd_data();
emcu 0:3e75e4bf3124 157
emcu 0:3e75e4bf3124 158 if(strcmp(send_buf,read_buf) == 0)
emcu 0:3e75e4bf3124 159 {
emcu 0:3e75e4bf3124 160 printf("RxTx OK \n\r");
emcu 0:3e75e4bf3124 161 TestLED = !TestLED; /* Toggle LED at the receiver */
emcu 0:3e75e4bf3124 162 }
emcu 0:3e75e4bf3124 163 else
emcu 0:3e75e4bf3124 164 printf("RxTx FAIL \n\r");
emcu 0:3e75e4bf3124 165
emcu 0:3e75e4bf3124 166 wait_ms(100);
emcu 0:3e75e4bf3124 167 send_data_flag = false;
emcu 0:3e75e4bf3124 168 send_data();
emcu 0:3e75e4bf3124 169 }
emcu 0:3e75e4bf3124 170
emcu 0:3e75e4bf3124 171 else if (tx_done_flag)
emcu 0:3e75e4bf3124 172 {
emcu 0:3e75e4bf3124 173 tx_done_flag = false;
emcu 0:3e75e4bf3124 174 printf("\r\n***Packet sent ***\r\nSent string ='%s' (len=%d)\n\r", send_buf, strlen((const char*)send_buf) + 1);
emcu 0:3e75e4bf3124 175 }
emcu 0:3e75e4bf3124 176 }
emcu 0:3e75e4bf3124 177
emcu 0:3e75e4bf3124 178 /* unreachable */
emcu 0:3e75e4bf3124 179 // myspirit.off();
emcu 0:3e75e4bf3124 180 // return 0;
emcu 0:3e75e4bf3124 181 }