![](/media/cache/profiles/2012_sf_avc_095.jpg.50x50_q85.jpg)
2018 revision to classic DataBus AVC code.
Dependencies: LSM303DLM Servo SerialGraphicLCD L3G4200D IncrementalEncoder SimpleShell
main.cpp
- Committer:
- shimniok
- Date:
- 2018-12-10
- Revision:
- 10:9fb3feb38746
- Parent:
- 9:fc3575d2cbbf
- Child:
- 11:8ec858b7c6d1
File content as of revision 10:9fb3feb38746:
/* mbed Microcontroller Library * Copyright (c) 2018 ARM Limited * SPDX-License-Identifier: Apache-2.0 */ #include "mbed.h" #include <stdio.h> #include <errno.h> #include "stats_report.h" #include "SDBlockDevice.h" #include "FATFileSystem.h" #include "SimpleShell.h" #include "Config.h" #include "L3G4200D.h" Serial pc(USBTX, USBRX); //SDBlockDevice bd(p5, p6, p7, p8); // MOSI, MISO, CLK, CS //FATFileSystem ffs("log", &bd); LocalFileSystem lfs("etc"); Config config; SimpleShell sh; DigitalOut led1(LED1); DigitalOut led2(LED2); Thread thread; typedef struct { int g[3]; // gyro float dt; // delta time } sensor_data_t; sensor_data_t data; /******** SHELL COMMANDS ********/ void test() { printf("Hello world!\n"); } void read_gyro() { printf("Gyro: %d, %d, %d %f\n", data.g[0], data.g[1], data.g[2], data.dt); } /********** PERIODIC FUNCTIONS ***********/ L3G4200D gyro(p9, p10); Timer timer; int thisTime = 0; int lastTime = -1; void periodic() { // Compute dt thisTime = timer.read_us(); data.dt = (lastTime < 0) ? 0 : ((float) thisTime - (float) lastTime) / 1000.0; // first pass let dt=0 lastTime = thisTime; // Read encoders // Read gyro gyro.read(data.g); //gyro[_z_] = (g_sign[_z_] * (g[_z_] - g_offset[_z_])) / g_scale[_z_]; // Save current data into history fifo to use 1 second from now //history[now].dist = (sensors.lrEncDistance + sensors.rrEncDistance) / 2.0; // current distance traveled //history[now].gyro = sensors.gyro[_z_]; // current raw gyro data //history[now].dt = dt; // current dt, to address jitter //history[now].hdg = clamp360( history[prev].hdg + dt*(history[now].gyro) ); // compute current heading from current gyro //float r = PI/180 * history[now].hdg; //history[now].x = history[prev].x + history[now].dist * sin(r); // update current position //history[now].y = history[prev].y + history[now].dist * cos(r); led2 = !led2; return; } /******** MAIN ********/ // main() runs in its own thread in the OS int main() { EventQueue *queue = mbed_highprio_event_queue(); timer.start(); printf("Bootup...\n"); fflush(stdout); printf("Loading config...\n"); config.add("intercept_distance", Config::DOUBLE); config.add("waypoint_threshold", Config::DOUBLE); config.add("minimum_turning_radius", Config::DOUBLE); config.add("wheelbase", Config::DOUBLE); config.add("track_width", Config::DOUBLE); config.add("tire_circumference", Config::DOUBLE); config.add("encoder_stripes", Config::INT); config.add("esc_brake", Config::INT); config.add("esc_off", Config::INT); config.add("esc_max", Config::INT); config.add("turn_speed", Config::DOUBLE); config.add("turn_distance", Config::DOUBLE); config.add("start_speed", Config::DOUBLE); config.add("cruise_speed", Config::DOUBLE); config.add("speed_kp", Config::DOUBLE); config.add("speed_ki", Config::DOUBLE); config.add("speed_kd", Config::DOUBLE); config.add("steer_center", Config::DOUBLE); config.add("steer_scale", Config::DOUBLE); config.add("gyro_scale", Config::DOUBLE); config.add("gps_valid_speed", Config::DOUBLE); if (config.load("/etc/2018cfg.txt")) { printf("error loading config\n"); } // Startup shell sh.attach(test, "test"); sh.attach(read_gyro, "gyro"); thread.start(callback(&sh, &SimpleShell::run)); //ticker.attach(callback(periodic), 0.010); // call periodic every 10ms // schedule calls to periodic at 20 Hz Event<void()> event(queue, periodic); event.period(50); event.post(); queue->dispatch_forever(); /* FILE *fp; char buf[128]; printf("Initializing the block device... "); fflush(stdout); int err = bd.init(); printf("%s\n", (err ? "Fail :(" : "OK")); printf("Opening sdtest.txt..."); fp = fopen("/log/sdtest.txt", "r"); if(fp) { while (!feof(fp)) { fgets(buf, 127, fp); printf(buf); } fclose(fp); } printf("Opening config.txt..."); fp = fopen("/etc/config.txt", "r"); if(fp) { while (!feof(fp)) { fgets(buf, 127, fp); printf(buf); } fclose(fp); } */ //SystemReport sys_state(500); while (true) { // Blink LED and wait 0.5 seconds led1 = !led1; wait(0.5f); // Following the main thread wait, report on the current system status //sys_state.report_state(); } }