![](/media/cache/profiles/LogoEMCU_EU_2.png.50x50_q85.jpg)
RX part for SPIRIT1, P2P application.
main.cpp
- Committer:
- emcu
- Date:
- 2018-01-05
- Revision:
- 0:3e75e4bf3124
File content as of revision 0:3e75e4bf3124:
/** RX RX RX Date: Jan 2018 Version: 1.0 More info are here: http://www.emcu.eu/how-to-use-the-x-nucleo-ids01a4-spirit1-in-p2p-mode-ack-under-mbed/ ****************************************************************************** * @file main.cpp * @author Rosarium PILA, STMicroelectronics * @version V1.0.0 * @date June 19th, 2017 * @brief mbed test application for the STMicroelectronics X-NUCLEO-IDB01A4/5 * Spirit1 Expansion Board ****************************************************************************** * @attention * * <h2><center>© 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" #include <stdio.h> #include <string.h> #define TEST_STR_LEN (32) 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'}; 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'}; static SimpleSpirit1 &myspirit = SimpleSpirit1::CreateInstance(D11, D12, D3, D9, D10, D2); /* (SPI_CLK) = (D13:PA5:resistorR7 --> D3:PB3:resistorR4)*/ static volatile bool rx_done_flag = false; static volatile bool tx_done_flag = false; static volatile bool send_data_flag = false; static DigitalOut TestLED(D5); /* LED of IDS01A4/5 */ static InterruptIn event(USER_BUTTON); /* Interrupt event to give userinterface to send pkt. */ /** * @brief callback_func * @param callback event * @retval None. */ static void callback_func(int event) { if(event == SimpleSpirit1::RX_DONE) { rx_done_flag = 1; } else if (event == SimpleSpirit1::TX_DONE) { tx_done_flag = 1; } } /** * @brief set_send_data_flag * @param None * @retval None */ static void set_send_data_flag(void) { send_data_flag = 1 ; } /** * @brief send_data * @param None * @retval None */ static void send_data(void) { printf("\r\n***Sending a packet***"); while(myspirit.is_receiving()); /* wait for ongoing RX ends */ size_t curr_len = strlen((const char*)send_buf) + 1; myspirit.send(send_buf, curr_len); } /** * @brief read_rcvd_data * @param None * @retval None */ static void read_rcvd_data(void) { for(unsigned int flush_count = 0; flush_count < TEST_STR_LEN; flush_count++) read_buf[flush_count] = 0 ;/* clear the read buffer */ int ret = myspirit.read(read_buf, sizeof(read_buf)); if(ret == 0) { printf("\nNothing to read\n\r"); return; } printf("\r\n***Received a packet***\r\n\rReceived string = '%s' (len=%d) \n\r", read_buf, ret); wait_ms(100); } /** * @brief main routine * @param None * @retval int */ int main() { TestLED = 0; /* LED off */ myspirit.attach_irq_callback(callback_func); myspirit.on(); printf("\n\r************** RX (X-NUCLEO-IDS01A4/5) **************\r\n"); printf("Receive a strinbg and back it to Tx\n\r\n\n"); event.rise(&set_send_data_flag); /*User button interrupt trigger to set send data flag */ while(1) { __WFE(); /* low power in idle condition., waiting for an event */ if(rx_done_flag) { rx_done_flag = false; read_rcvd_data(); if(strcmp(send_buf,read_buf) == 0) { printf("RxTx OK \n\r"); TestLED = !TestLED; /* Toggle LED at the receiver */ } else printf("RxTx FAIL \n\r"); wait_ms(100); send_data_flag = false; send_data(); } else if (tx_done_flag) { tx_done_flag = false; printf("\r\n***Packet sent ***\r\nSent string ='%s' (len=%d)\n\r", send_buf, strlen((const char*)send_buf) + 1); } } /* unreachable */ // myspirit.off(); // return 0; }