ST / Mbed 2 deprecated HelloWorld_IDS01A4

HelloWorld_IDS01A4 mbed application for Spirit1 P2P demo.

Dependencies:   mbed

Fork of HelloWorld_IDS01A5_Program by rosarium pila

mbed 2.0 (a.k.a classic) HelloWorld example for Spirit1 to transfer data from one node to another.
To send the predefined data packet from the sender to the receiver, user needs to press User Button on the board. The LED on the receiver expansion board will toggle on reception of data successfully.
Data packets sent and received can be seen on USB serial terminal.

EVALUATION BOARDS RF FREQUENCY DESCRIPTION :
X-NUCLEO-IDS01A4 868 MHz 868 MHz RF expansion board based on SPIRIT1

main.cpp@1:cf2e2f85bf8d, 2017-06-19 (annotated)

Committer:
rosarium
Date:
Mon Jun 19 08:23:08 2017 +0000
Revision:
1:cf2e2f85bf8d
Parent:
0:2ddc0583bcec
Child:
2:a0677b17a570
Updated main.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rosarium 0:2ddc0583bcec 1 /**
rosarium 0:2ddc0583bcec 2 ******************************************************************************
rosarium 0:2ddc0583bcec 3 * @file main.cpp
rosarium 0:2ddc0583bcec 4 * @author Rosarium PILA, STMicroelectronics
rosarium 0:2ddc0583bcec 5 * @version V1.0.0
rosarium 0:2ddc0583bcec 6 * @date May 17th, 2017
rosarium 1:cf2e2f85bf8d 7 * @brief mbed Hello World test application for the STMicroelectronics X-NUCLEO-IDB01A4/5
rosarium 0:2ddc0583bcec 8 * Spirit1 Expansion Board
rosarium 0:2ddc0583bcec 9 ******************************************************************************
rosarium 0:2ddc0583bcec 10 * @attention
rosarium 0:2ddc0583bcec 11 *
rosarium 0:2ddc0583bcec 12 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
rosarium 0:2ddc0583bcec 13 *
rosarium 0:2ddc0583bcec 14 * Redistribution and use in source and binary forms, with or without modification,
rosarium 0:2ddc0583bcec 15 * are permitted provided that the following conditions are met:
rosarium 0:2ddc0583bcec 16 * 1. Redistributions of source code must retain the above copyright notice,
rosarium 0:2ddc0583bcec 17 * this list of conditions and the following disclaimer.
rosarium 0:2ddc0583bcec 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
rosarium 0:2ddc0583bcec 19 * this list of conditions and the following disclaimer in the documentation
rosarium 0:2ddc0583bcec 20 * and/or other materials provided with the distribution.
rosarium 0:2ddc0583bcec 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
rosarium 0:2ddc0583bcec 22 * may be used to endorse or promote products derived from this software
rosarium 0:2ddc0583bcec 23 * without specific prior written permission.
rosarium 0:2ddc0583bcec 24 *
rosarium 0:2ddc0583bcec 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
rosarium 0:2ddc0583bcec 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
rosarium 0:2ddc0583bcec 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
rosarium 0:2ddc0583bcec 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
rosarium 0:2ddc0583bcec 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
rosarium 0:2ddc0583bcec 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
rosarium 0:2ddc0583bcec 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
rosarium 0:2ddc0583bcec 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
rosarium 0:2ddc0583bcec 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
rosarium 0:2ddc0583bcec 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
rosarium 0:2ddc0583bcec 35 *
rosarium 0:2ddc0583bcec 36 ******************************************************************************
rosarium 0:2ddc0583bcec 37 */
rosarium 0:2ddc0583bcec 38
rosarium 0:2ddc0583bcec 39 #include "mbed.h"
rosarium 0:2ddc0583bcec 40 #include "SimpleSpirit1.h"
rosarium 0:2ddc0583bcec 41
rosarium 1:cf2e2f85bf8d 42 #define TEST_STR_LEN (32)
rosarium 0:2ddc0583bcec 43 static uint8_t 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'};
rosarium 0:2ddc0583bcec 44 static uint8_t 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'};
rosarium 1:cf2e2f85bf8d 45
rosarium 1:cf2e2f85bf8d 46 static SimpleSpirit1 &myspirit = SimpleSpirit1::CreateInstance(D11, D12, D3, D9, D10, D2); //RPi: (SPI_CLK) = (D13:PA5:resistorR7 --> D3:PB3:resistorR4)
rosarium 0:2ddc0583bcec 47
rosarium 1:cf2e2f85bf8d 48 volatile bool rx_done_flag = 0;
rosarium 1:cf2e2f85bf8d 49 volatile bool tx_done_flag = 0;
rosarium 0:2ddc0583bcec 50
rosarium 0:2ddc0583bcec 51 static int curr_len = 0;
rosarium 0:2ddc0583bcec 52 unsigned char myValue = 0;
rosarium 0:2ddc0583bcec 53
rosarium 1:cf2e2f85bf8d 54 InterruptIn event(USER_BUTTON); //RPi : //Added interrupt event to give userinterface to send pkt.
rosarium 0:2ddc0583bcec 55
rosarium 1:cf2e2f85bf8d 56 /**
rosarium 1:cf2e2f85bf8d 57 * @brief callback_func
rosarium 1:cf2e2f85bf8d 58 * @param callback event
rosarium 1:cf2e2f85bf8d 59 * @retval None.
rosarium 1:cf2e2f85bf8d 60 */
rosarium 0:2ddc0583bcec 61 static void callback_func(int event)
rosarium 0:2ddc0583bcec 62 {
rosarium 1:cf2e2f85bf8d 63 if(event == SimpleSpirit1::RX_DONE)
rosarium 1:cf2e2f85bf8d 64 {
rosarium 1:cf2e2f85bf8d 65 rx_done_flag = 1;
rosarium 1:cf2e2f85bf8d 66 }
rosarium 1:cf2e2f85bf8d 67 else if (event == SimpleSpirit1::TX_DONE)
rosarium 1:cf2e2f85bf8d 68 {
rosarium 1:cf2e2f85bf8d 69 tx_done_flag = 1;
rosarium 1:cf2e2f85bf8d 70 }
rosarium 0:2ddc0583bcec 71 }
rosarium 0:2ddc0583bcec 72
rosarium 1:cf2e2f85bf8d 73
rosarium 1:cf2e2f85bf8d 74 /**
rosarium 1:cf2e2f85bf8d 75 * @brief send_data
rosarium 1:cf2e2f85bf8d 76 * @param None
rosarium 1:cf2e2f85bf8d 77 * @retval None
rosarium 1:cf2e2f85bf8d 78 */
rosarium 0:2ddc0583bcec 79 void send_data(void)
rosarium 1:cf2e2f85bf8d 80 {
rosarium 1:cf2e2f85bf8d 81 printf("\r\n***Sending a packet***\r\n");
rosarium 0:2ddc0583bcec 82
rosarium 0:2ddc0583bcec 83 while(myspirit.is_receiving()); // wait for ongoing RX ends
rosarium 1:cf2e2f85bf8d 84
rosarium 0:2ddc0583bcec 85 curr_len = strlen((const char*)send_buf) + 1;
rosarium 0:2ddc0583bcec 86 myspirit.send(send_buf, curr_len);
rosarium 0:2ddc0583bcec 87 }
rosarium 1:cf2e2f85bf8d 88 /**
rosarium 1:cf2e2f85bf8d 89 * @brief main routine
rosarium 1:cf2e2f85bf8d 90 * @param None
rosarium 1:cf2e2f85bf8d 91 * @retval int
rosarium 1:cf2e2f85bf8d 92 */
rosarium 0:2ddc0583bcec 93 int main()
rosarium 1:cf2e2f85bf8d 94 {
rosarium 1:cf2e2f85bf8d 95 DigitalOut TestLED = D5; //RPi //LED of IDS01A4/5
rosarium 1:cf2e2f85bf8d 96 TestLED = 0; //RPi //LED off
rosarium 0:2ddc0583bcec 97
rosarium 0:2ddc0583bcec 98 myspirit.attach_irq_callback(callback_func);
rosarium 0:2ddc0583bcec 99
rosarium 0:2ddc0583bcec 100 myspirit.on();
rosarium 0:2ddc0583bcec 101
rosarium 0:2ddc0583bcec 102 printf("\n**************HelloWorld mbed demo for Spirit1 (X-NUCLEO-IDS01A4/5)**************\r\n");
rosarium 0:2ddc0583bcec 103 printf("\nPress User Button on one of the two boards to send a packaet to the other and the LED D1 on the receiver X-NUCLEO-IDS01A4/5 should toggle \n\r\n");
rosarium 0:2ddc0583bcec 104
rosarium 1:cf2e2f85bf8d 105 event.rise(&send_data); //RPi: User button interrupt trigger to send data
rosarium 1:cf2e2f85bf8d 106
rosarium 0:2ddc0583bcec 107 while(1)
rosarium 0:2ddc0583bcec 108 {
rosarium 1:cf2e2f85bf8d 109 __WFE(); // low power in idle condition., waiting for an event
rosarium 0:2ddc0583bcec 110
rosarium 1:cf2e2f85bf8d 111 if(rx_done_flag)
rosarium 0:2ddc0583bcec 112 {
rosarium 1:cf2e2f85bf8d 113 rx_done_flag = 0;
rosarium 1:cf2e2f85bf8d 114
rosarium 1:cf2e2f85bf8d 115 for(unsigned int flush_count = 0; flush_count < TEST_STR_LEN; flush_count++) read_buf[flush_count] = 0 ;//RPi:clear the read buffer
rosarium 0:2ddc0583bcec 116
rosarium 0:2ddc0583bcec 117 int ret = myspirit.read(read_buf, sizeof(read_buf));
rosarium 0:2ddc0583bcec 118
rosarium 1:cf2e2f85bf8d 119 myValue = 1 - myValue;
rosarium 1:cf2e2f85bf8d 120 TestLED = myValue; //RPi: Toggle LED at the receiver
rosarium 0:2ddc0583bcec 121
rosarium 0:2ddc0583bcec 122 if(ret == 0) {
rosarium 0:2ddc0583bcec 123 printf("\nNothing to read\n\r");
rosarium 0:2ddc0583bcec 124 continue;
rosarium 0:2ddc0583bcec 125 }
rosarium 0:2ddc0583bcec 126 printf("\r\n***Received a packet***\r\n\rReceived string = '%s' (len=%d) \n\r", read_buf, ret);
rosarium 1:cf2e2f85bf8d 127 }
rosarium 1:cf2e2f85bf8d 128
rosarium 1:cf2e2f85bf8d 129 else if (tx_done_flag)
rosarium 1:cf2e2f85bf8d 130 {
rosarium 1:cf2e2f85bf8d 131 tx_done_flag = 0;
rosarium 1:cf2e2f85bf8d 132 printf("\r\n***Packet sent***\r\nSent string ='%s' (len=%d)\n\r", send_buf, strlen((const char*)send_buf) + 1);
rosarium 1:cf2e2f85bf8d 133 }
rosarium 0:2ddc0583bcec 134 }
rosarium 0:2ddc0583bcec 135
rosarium 0:2ddc0583bcec 136 myspirit.off();
rosarium 0:2ddc0583bcec 137
rosarium 0:2ddc0583bcec 138 return 0;
rosarium 0:2ddc0583bcec 139 }
rosarium 0:2ddc0583bcec 140
rosarium 0:2ddc0583bcec 141
rosarium 0:2ddc0583bcec 142