Add CRC Driver

This patch includes a high level and two low level drivers.

The high level driver is enabled with flag HAL_USE_CRC

The low level drivers include:
    * Hardware CRC for the STM32 cortex processor lines.(when supported)
        * Enabled with flag STM32_CRC_USE_CRC1
        * DMA is enabled with CRC_USE_DMA
          * SYNC api will use DMA, but put calling thread to sleep
          * ASYNC api enabled.
        * DMA Disabled
          * SYNC api spin while calculating CRC
          * ASYNC api disabled
    * Software CRC (3 modes)
        * CRCSW_CRC32_TABLE - Enables crc32 with lookup table.
        * CRCSW_CRC16_TABLE - Enables crc16 with lookup tables.
        * CRCSW_PROGRAMMBLE - Enables any crc done with computation.
          * Can calculate any crc configuration.
        * CRC_USE_DMA obviously not support with software CRC

1 files changed, 33 insertions, 0 deletions

diff --git a/testhal/STM32/STM32F0xx/crc/mcuconf_community.h b/testhal/STM32/STM32F0xx/crc/mcuconf_community.h
new file mode 100644
index 0000000..8df78ec
--- /dev/null
+++ b/testhal/STM32/STM32F0xx/crc/mcuconf_community.h
@@ -0,0 +1,33 @@
+/*
+    ChibiOS/RT - Copyright (C) 2015 Michael D. Spradling
+
+    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.
+*/
+
+#ifndef _MCUCONF_COMMUNITY_H_
+#define _MCUCONF_COMMUNITY_H_
+
+/*
+ * CRC driver system settings.
+ */
+#define STM32_CRC_USE_CRC1                  TRUE
+#define STM32_CRC_CRC1_DMA_IRQ_PRIORITY     1
+#define STM32_CRC_CRC1_DMA_PRIORITY         2
+#define STM32_CRC_CRC1_DMA_STREAM           STM32_DMA1_STREAM2
+
+#define CRCSW_USE_CRC1                      FALSE
+#define CRCSW_CRC32_TABLE                   TRUE
+#define CRCSW_CRC16_TABLE                   TRUE
+#define CRCSW_PROGRAMMABLE                  TRUE
+
+#endif