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

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

@@ -0,0 +1,61 @@
+/*
+    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.
+*/
+
+/**
+ * Not responding slave test
+ */
+
+#include <stdlib.h>
+
+#include "ch.h"
+#include "hal.h"
+
+#include "fake.h"
+
+
+/* input buffer */
+static uint8_t rx_data[2];
+
+/* temperature value */
+static int16_t temperature = 0;
+
+static i2cflags_t errors = 0;
+
+#define addr 0b1001100
+
+/* This is main function. */
+void request_fake(void){
+  msg_t status = RDY_OK;
+  systime_t tmo = MS2ST(4);
+
+  i2cAcquireBus(&I2CD1);
+  status = i2cMasterReceiveTimeout(&I2CD1, addr, rx_data, 2, tmo);
+  i2cReleaseBus(&I2CD1);
+
+  if (status == RDY_RESET){
+    errors = i2cGetErrors(&I2CD1);
+    if (errors == I2CD_ACK_FAILURE){
+      /* there is no slave with given address on the bus, or it was die */
+      return;
+    }
+  }
+
+  else{
+    temperature = (rx_data[0] << 8) + rx_data[1];
+  }
+}
+
+