main.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2018 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  */
00005 
00006 #define NRF_LOG_BACKEND_SERIAL_USES_RTT 1
00007 #define NRF_MODULE_ENABLED 1
00008 #define NRF_LOG_BACKEND_RTT 1
00009 #define NRF_LOG_USES_RTT 1
00010 #define NRF_LOG_USES_COLORS 1
00011 #define NRF_LOG_ENABLED 1
00012 #define TWIS_CONFIG_LOG_ENABLED 1
00013 #define TWI_CONFIG_LOG_ENABLED 1
00014 #include "retarget_segger_rtt.h"
00015 #include "mbed.h"
00016 #include "stats_report.h"
00017 
00018 #define ledRed_pin p12
00019 
00020 DigitalOut led1(ledRed_pin);
00021 
00022 #define SLEEP_TIME                  500 // (msec)
00023 #define PRINT_AFTER_N_LOOPS         20
00024 
00025 // main() runs in its own thread in the OS
00026 int main()
00027 {
00028     // Unneeded stuff
00029     //      SEGGER_RTT_Init();
00030     //      NRF_LOG_INIT();
00031     //      segger.write(buffer,2);
00032 
00033     SystemReport sys_state( SLEEP_TIME * PRINT_AFTER_N_LOOPS /* Loop delay time in ms */);
00034 
00035     int count = 0;
00036     while (true) {
00037         // Blink LED and wait 0.5 seconds
00038         led1 = !led1;
00039         wait_ms(SLEEP_TIME);
00040         // can use printf, but it gets stored in a buffer somewhere and isn't immediate
00041         printf("led");
00042         
00043         // USE SEGGER_RTT_WriteString
00044         // Very fast
00045         SEGGER_RTT_WriteString(0, "Hello World from SEGGER!\r\n");
00046         
00047         // NOT NEEDED, but could be usefull
00048         if ((0 == count) || (PRINT_AFTER_N_LOOPS == count)) {
00049             // Following the main thread wait, report on the current system status
00050             sys_state.report_state();
00051             count = 0;
00052         }
00053         ++count;
00054         
00055     }
00056 }