Diff: seeed_can_spi.h

Revision:

0:f5d099885d3d

Child:

1:ad71faa09868

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/seeed_can_spi.h	Tue Nov 05 22:37:35 2013 +0000
@@ -0,0 +1,76 @@
+/* seeed_can_spi.h
+ * Copyright (c) 2013 Sophie Dexter
+ *
+ * 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 _SEEED_CAN_SPI_H_
+#define _SEEED_CAN_SPI_H_
+
+#include "seeed_can_defs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+    /** CAN driver typedefs
+     */
+    struct Seeed_MCP_CAN_Shield {
+        SPI             spi;
+        DigitalOut      ncs;
+        InterruptIn     irq;
+        Seeed_MCP_CAN_Shield(SPI _spi_, DigitalOut _ncs_, InterruptIn _irq_) :
+            spi(_spi_),
+            ncs(_ncs_),
+            irq(_irq_)
+        {}
+    };
+    typedef struct Seeed_MCP_CAN_Shield can_t;
+
+    /** mcp2515 spi instructions
+     */
+    void mcpReset(can_t *obj);                                          // reset the MCP2515 CAN controller chip
+
+    uint8_t mcpRead(can_t *obj,                                         // read from a single MCP2512 register
+                    const uint8_t address);
+    void mcpReadMultiple(can_t *obj,                                    // read multiple, sequential, registers into an array
+                         const uint8_t address,
+                         uint8_t values[],
+                         const uint8_t n);
+    void mcpReadBuffer(can_t *obj,                                      // read the specified receive buffer into an array
+                       const uint8_t command,
+                       uint8_t values[],
+                       const uint8_t n);
+    void mcpWrite(can_t *obj,                                           // write to a single MCP2512 register
+                  const uint8_t address,
+                  const uint8_t value);
+    void mcpWriteMultiple(can_t *obj,                                   // write an array into consecutive MCP2515 registers
+                          const uint8_t address,
+                          const uint8_t values[],
+                          const uint8_t n);
+    void mcpWriteBuffer(can_t *obj,                                     // write an array into the specified transmit buffer
+                        const uint8_t command,
+                        uint8_t values[],
+                        const uint8_t n);
+    void mcpBufferRTS(can_t *obj, const uint8_t command);               // initiate transmission of the specified MCP2515 transmit buffer
+    uint8_t mcpStatus(can_t *obj);                                      // read the MCP2515's status register
+    uint8_t mcpReceiveStatus(can_t *obj);                               // read mcp2515's receive status register
+    void mcpBitModify(can_t *obj,                                       // modify bits of a register specified by a mask
+                      const uint8_t address,
+                      const uint8_t mask,
+                      const uint8_t data);
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif    // SEEED_CAN_SPI_H
\ No newline at end of file