Diff: main.cpp

Revision:

0:2ddc0583bcec

Child:

1:cf2e2f85bf8d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 25 16:38:55 2017 +0000
@@ -0,0 +1,163 @@
+/**
+ ******************************************************************************
+ * @file    main.cpp
+ * @author  Rosarium PILA, STMicroelectronics
+ * @version V1.0.0
+ * @date    May 17th, 2017
+ * @brief   mbed HelloWorld P2P example for the STMicroelectronics X-NUCLEO-IDB01A4/5
+ *          Spirit1 Expansion Board
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+#include "mbed.h"
+#include "SimpleSpirit1.h"
+
+#define TEST_STR_LEN (32)  //512
+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'};
+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'};
+
+#define PCKT_MARGIN (2) //32
+
+//#define SIGNAL_BIT (0x1)                                                      //RPi //Removed OS dependency for mbed classic
+//static osThreadId main_thread_id;                                             //RPi //Removed OS dependency for mbed classic
+
+          
+static SimpleSpirit1 &myspirit = SimpleSpirit1::CreateInstance(D11, D12, D3, D9, D10, D2); //RPi
+bool SIGNAL_BIT = 0; //RPi
+static int curr_len = 0;
+unsigned char myValue = 0;
+
+InterruptIn event(USER_BUTTON);                                                 //RPi //Added interrupt event to give userinterface to send pkt.
+
+static void callback_func(int event) 
+{
+	if(event == SimpleSpirit1::RX_DONE) {
+//		osSignalSet(main_thread_id, SIGNAL_BIT);                        //RPi //Removed OS dependency for mbed classic                
+          SIGNAL_BIT = 1;
+	} else if (event != SimpleSpirit1::TX_DONE) {
+		printf("Got unexpected event %d\r\n", event);
+	} else {
+		printf("TX done!\n\r\n");
+	}
+}
+
+void send_data(void)
+{
+  int cnt = 0;
+  cnt++;
+  if(cnt >= MAX_PACKET_LEN) cnt = 0;
+  
+  printf("\r\n***Sending a packet***\r\nSent string ='%s' (len=%d)\n\r", send_buf, strlen((const char*)send_buf) + 1);  
+  
+  uint32_t before_cca = us_ticker_read();
+  while(myspirit.is_receiving()); // wait for ongoing RX ends
+  uint32_t after_cca = us_ticker_read();
+  
+  curr_len = strlen((const char*)send_buf) + 1;
+  myspirit.send(send_buf, curr_len);
+  uint32_t after_send = us_ticker_read();
+  
+  printf("CCA time: %uus\n", (unsigned int)(after_cca - before_cca));
+  printf("Send time: %uus\n\r", (unsigned int)(after_send - after_cca));
+}
+
+int main() 
+{
+  //	osStatus ret;                                                           //RPi //Removed OS dependency for mbed classic
+
+  unsigned int pckts_fails = 0;
+  unsigned int first_failed_packet = 0;
+  unsigned int last_failed_packet = 0;
+  int validate_cnt = -1;
+  
+  //	main_thread_id = Thread::gettid();                                      //RPi //Removed OS dependency for mbed classic
+  
+  
+  DigitalOut TestLED = D5; //RPi //LED of IDS01A4/5
+  TestLED = 0; //RPi //LED off
+  
+  myspirit.attach_irq_callback(callback_func);
+  
+  myspirit.on();
+  
+  printf("\n**************HelloWorld mbed demo for Spirit1 (X-NUCLEO-IDS01A4/5)**************\r\n");
+  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");
+  
+  while(1) 
+  {
+    
+    event.rise(&send_data); //RPi // Added User button interrupt trigger to send data
+    
+    if(SIGNAL_BIT) //RPi //Data pkt received
+    {
+      SIGNAL_BIT = 0; 
+      
+      for(unsigned int flush_count = 0; flush_count < TEST_STR_LEN; flush_count++) read_buf[flush_count] = 0 ;//RPi//clear the read buffer
+      
+      int ret = myspirit.read(read_buf, sizeof(read_buf));
+      
+      myValue = 1 - myValue; //RPi //Toggle LED at the receiver
+      TestLED = myValue;     //RPi //Toggle LED at the receiver
+      
+      if(ret == 0) {
+        printf("\nNothing to read\n\r");
+        continue;
+      }
+      int len = strlen((const char*)read_buf) + 1;
+      if(validate_cnt < 0) {
+        validate_cnt = ret;
+      } else {
+        validate_cnt++;
+        if(validate_cnt > MAX_PACKET_LEN) validate_cnt = 1;
+      }
+
+      if(ret != len) {
+        pckts_fails++;
+        if((ret > (int)(first_failed_packet + PCKT_MARGIN) || (ret < (int)(first_failed_packet - PCKT_MARGIN)))) {
+          first_failed_packet = ret;
+        }
+        last_failed_packet = ret;
+      }
+
+      printf("\r\n***Received a packet***\r\n\rReceived string = '%s' (len=%d) \n\r", read_buf, ret); 
+      printf("RSSI: %f, LQI: %u\r\n", myspirit.get_last_rssi_dbm(), (unsigned int)myspirit.get_last_sqi());
+      printf("Packets failed:\t%d\t(ff=%d, lf=%d)\r\n", pckts_fails, first_failed_packet, last_failed_packet);
+      
+      while(myspirit.is_receiving()); // wait for ongoing RX ends
+    } 
+  }
+  
+  myspirit.off();
+  
+  return 0;
+}
+
+
+