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

firmware/chibios/testhal/STM32F1xx/I2C/main.c

@@ -0,0 +1,135 @@
+/*
+    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.
+*/
+/*
+   Concepts and parts of this file have been contributed by Uladzimir Pylinsky
+   aka barthess.
+ */
+
+#include <stdlib.h>
+
+#include "ch.h"
+#include "hal.h"
+
+#include "i2c_pns.h"
+#include "lis3.h"
+#include "tmp75.h"
+#include "fake.h"
+
+
+/*
+ * Red LEDs blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(BlinkWA, 64);
+static msg_t Blink(void *arg) {
+  chRegSetThreadName("Blink");
+  (void)arg;
+  while (TRUE) {
+    palClearPad(IOPORT3, GPIOC_LED);
+    chThdSleepMilliseconds(500);
+    palSetPad(IOPORT3, GPIOC_LED);
+    chThdSleepMilliseconds(500);
+  }
+  return 0;
+}
+
+/*
+ * Accelerometer thread
+ */
+static WORKING_AREA(PollAccelThreadWA, 256);
+static msg_t PollAccelThread(void *arg) {
+  chRegSetThreadName("PollAccel");
+  (void)arg;
+  while (TRUE) {
+    /*chThdSleepMilliseconds(rand() & 31);*/
+    chThdSleepMilliseconds(32);
+    request_acceleration_data();
+  }
+  return 0;
+}
+
+
+/* Temperature polling thread */
+static WORKING_AREA(PollTmp75ThreadWA, 256);
+static msg_t PollTmp75Thread(void *arg) {
+  chRegSetThreadName("PollTmp75");
+  (void)arg;
+  while (TRUE) {
+    /*chThdSleepMilliseconds(rand() & 31);*/
+    chThdSleepMilliseconds(15);
+    /* Call reading function */
+    request_temperature();
+  }
+  return 0;
+}
+
+
+/* Temperature polling thread */
+static WORKING_AREA(PollFakeThreadWA, 256);
+static msg_t PollFakeThread(void *arg) {
+  chRegSetThreadName("PollFake");
+  (void)arg;
+  while (TRUE) {
+    chThdSleepMilliseconds(16);
+    /* Call reading function */
+    request_fake();
+  }
+  return 0;
+}
+
+
+/*
+ * Entry point, note, the main() function is already a thread in the system
+ * on entry.
+ */
+int main(void) {
+
+  halInit();
+  chSysInit();
+
+  chThdSleepMilliseconds(200);
+  I2CInit_pns();
+
+  /* Create accelerometer thread */
+  chThdCreateStatic(PollAccelThreadWA,
+          sizeof(PollAccelThreadWA),
+          NORMALPRIO,
+          PollAccelThread,
+          NULL);
+
+  /* Create temperature thread */
+  chThdCreateStatic(PollTmp75ThreadWA,
+          sizeof(PollTmp75ThreadWA),
+          NORMALPRIO,
+          PollTmp75Thread,
+          NULL);
+
+  /* Create not responding thread */
+  chThdCreateStatic(PollFakeThreadWA,
+          sizeof(PollFakeThreadWA),
+          NORMALPRIO,
+          PollFakeThread,
+          NULL);
+
+  /* Creates the blinker thread. */
+  chThdCreateStatic(BlinkWA, sizeof(BlinkWA), HIGHPRIO, Blink, NULL);
+
+  /* main loop that do nothing */
+  while (TRUE) {
+    chThdSleepMilliseconds(500);
+  }
+
+  return 0;
+}