ChibiOS 2.6.8, until I can figure out where to get it from git.

firmware/chibios/demos/ARMCM4-STM32F429-DISCOVERY/main.c

@@ -0,0 +1,201 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+#include "test.h"
+
+#include "chprintf.h"
+#include "shell.h"
+
+#include "usbcfg.h"
+
+/*
+ * Red LED blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread1, 128);
+static msg_t Thread1(void *arg) {
+
+  (void)arg;
+  chRegSetThreadName("blinker1");
+  while (TRUE) {
+    palClearPad(GPIOG, GPIOG_LED4_RED);
+    chThdSleepMilliseconds(500);
+    palSetPad(GPIOG, GPIOG_LED4_RED);
+    chThdSleepMilliseconds(500);
+  }
+}
+
+/*
+ * Green LED blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread2, 128);
+static msg_t Thread2(void *arg) {
+
+  (void)arg;
+  chRegSetThreadName("blinker2");
+  while (TRUE) {
+    palClearPad(GPIOG, GPIOG_LED3_GREEN);
+    chThdSleepMilliseconds(250);
+    palSetPad(GPIOG, GPIOG_LED3_GREEN);
+    chThdSleepMilliseconds(250);
+  }
+}
+
+/*===========================================================================*/
+/* Command line related.                                                     */
+/*===========================================================================*/
+
+/* Virtual serial port over USB.*/
+SerialUSBDriver SDU1;
+
+#define SHELL_WA_SIZE   THD_WA_SIZE(2048)
+#define TEST_WA_SIZE    THD_WA_SIZE(256)
+
+static void cmd_mem(BaseSequentialStream *chp, int argc, char *argv[]) {
+  size_t n, size;
+
+  (void)argv;
+  if (argc > 0) {
+    chprintf(chp, "Usage: mem\r\n");
+    return;
+  }
+  n = chHeapStatus(NULL, &size);
+  chprintf(chp, "core free memory : %u bytes\r\n", chCoreStatus());
+  chprintf(chp, "heap fragments   : %u\r\n", n);
+  chprintf(chp, "heap free total  : %u bytes\r\n", size);
+}
+
+static void cmd_threads(BaseSequentialStream *chp, int argc, char *argv[]) {
+  static const char *states[] = {THD_STATE_NAMES};
+  Thread *tp;
+
+  (void)argv;
+  if (argc > 0) {
+    chprintf(chp, "Usage: threads\r\n");
+    return;
+  }
+  chprintf(chp, "    addr    stack prio refs     state time\r\n");
+  tp = chRegFirstThread();
+  do {
+    chprintf(chp, "%.8lx %.8lx %4lu %4lu %9s %lu\r\n",
+            (uint32_t)tp, (uint32_t)tp->p_ctx.r13,
+            (uint32_t)tp->p_prio, (uint32_t)(tp->p_refs - 1),
+            states[tp->p_state], (uint32_t)tp->p_time);
+    tp = chRegNextThread(tp);
+  } while (tp != NULL);
+}
+
+static void cmd_test(BaseSequentialStream *chp, int argc, char *argv[]) {
+  Thread *tp;
+
+  (void)argv;
+  if (argc > 0) {
+    chprintf(chp, "Usage: test\r\n");
+    return;
+  }
+  tp = chThdCreateFromHeap(NULL, TEST_WA_SIZE, chThdGetPriority(),
+                           TestThread, chp);
+  if (tp == NULL) {
+    chprintf(chp, "out of memory\r\n");
+    return;
+  }
+  chThdWait(tp);
+}
+
+static const ShellCommand commands[] = {
+  {"mem", cmd_mem},
+  {"threads", cmd_threads},
+  {"test", cmd_test},
+  {NULL, NULL}
+};
+
+static const ShellConfig shell_cfg1 = {
+  (BaseSequentialStream *)&SDU1,
+  commands
+};
+
+/*===========================================================================*/
+/* Initialization and main thread.                                           */
+/*===========================================================================*/
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+  Thread *shelltp = NULL;
+
+  /*
+   * System initializations.
+   * - HAL initialization, this also initializes the configured device drivers
+   *   and performs the board-specific initializations.
+   * - Kernel initialization, the main() function becomes a thread and the
+   *   RTOS is active.
+   */
+  halInit();
+  chSysInit();
+
+  /*
+   * Shell manager initialization.
+   */
+  shellInit();
+
+  /*
+   * Initializes a serial-over-USB CDC driver.
+   */
+  sduObjectInit(&SDU1);
+  sduStart(&SDU1, &serusbcfg);
+
+  /*
+   * Activates the USB driver and then the USB bus pull-up on D+.
+   * Note, a delay is inserted in order to not have to disconnect the cable
+   * after a reset.
+   */
+  usbDisconnectBus(serusbcfg.usbp);
+  chThdSleepMilliseconds(1000);
+  usbStart(serusbcfg.usbp, &usbcfg);
+  usbConnectBus(serusbcfg.usbp);
+
+  /*
+   * Creating the blinker threads.
+   */
+  chThdCreateStatic(waThread1, sizeof(waThread1),
+                    NORMALPRIO + 10, Thread1, NULL);
+  chThdCreateStatic(waThread2, sizeof(waThread2),
+                    NORMALPRIO + 10, Thread2, NULL);
+
+  /*
+   * Normal main() thread activity, in this demo it just performs
+   * a shell respawn upon its termination.
+   */
+  while (TRUE) {
+    if (!shelltp) {
+      if (SDU1.config->usbp->state == USB_ACTIVE) {
+        /* Spawns a new shell.*/
+        shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO);
+      }
+    }
+    else {
+      /* If the previous shell exited.*/
+      if (chThdTerminated(shelltp)) {
+        /* Recovers memory of the previous shell.*/
+        chThdRelease(shelltp);
+        shelltp = NULL;
+      }
+    }
+    chThdSleepMilliseconds(500);
+  }
+}