1 files changed, 115 insertions, 0 deletions
diff --git a/testhal/STM32/STM32F1xx/I2C/main.c b/testhal/STM32/STM32F1xx/I2C/main.c
new file mode 100644
index 000000000..2b0d3383e
--- /dev/null
+++ b/testhal/STM32/STM32F1xx/I2C/main.c
@@ -0,0 +1,115 @@
+/*
+    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.
+ */
+
+/*
+    This demo:
+    1) turns LED on when you incline (~45 deg.) or shake the board;
+    2) correctly handles absence of slave device on bus.
+ */
+
+#include <stdlib.h>
+#include <math.h>
+
+#include "ch.h"
+#include "hal.h"
+
+#include "lis3.h"
+#include "fake.h"
+
+/* measured acceleration components {x,y,z} */
+static float acc[3];
+
+/*
+ * Accelerometer polling thread.
+ */
+static THD_WORKING_AREA(PollAccelThreadWA, 256);
+static THD_FUNCTION(PollAccelThread, arg) {
+  chRegSetThreadName("PollAccel");
+  (void)arg;
+
+  while (TRUE) {
+    osalThreadSleepMilliseconds(32);
+    lis3GetAcc(acc);
+  }
+  return 0;
+}
+
+/*
+ * Fake polling thread.
+ */
+static THD_WORKING_AREA(PollFakeThreadWA, 256);
+static THD_FUNCTION(PollFakeThread, arg) {
+  chRegSetThreadName("PollFake");
+  (void)arg;
+
+  while (TRUE) {
+    osalThreadSleepMilliseconds(16);
+    request_fake();
+  }
+  return 0;
+}
+
+/*
+ * I2C1 config.
+ */
+static const I2CConfig i2cfg1 = {
+    OPMODE_I2C,
+    400000,
+    FAST_DUTY_CYCLE_2,
+};
+
+/*
+ * Entry point, note, the main() function is already a thread in the system
+ * on entry.
+ */
+int main(void) {
+
+  halInit();
+  chSysInit();
+
+  i2cStart(&I2CD1, &i2cfg1);
+  lis3Start();
+
+  /* Create accelerometer thread. */
+  chThdCreateStatic(PollAccelThreadWA,
+          sizeof(PollAccelThreadWA),
+          NORMALPRIO,
+          PollAccelThread,
+          NULL);
+
+  /* Create not responding thread. */
+  chThdCreateStatic(PollFakeThreadWA,
+          sizeof(PollFakeThreadWA),
+          NORMALPRIO,
+          PollFakeThread,
+          NULL);
+
+  /* main loop handles LED */
+  while (TRUE) {
+    if (sqrtf(acc[0]*acc[0] + acc[1]*acc[1]) > 0.5)
+      palClearPad(IOPORT3, GPIOC_LED); /* on */
+    else
+      palSetPad(IOPORT3, GPIOC_LED); /* off */
+    osalThreadSleepMilliseconds(20);
+  }
+
+  return 0;
+}