From c6c192df37defe1851095c521baf87be8bdb48da Mon Sep 17 00:00:00 2001
From: Martin <xboxpro1@gmail.com>
Date: Fri, 3 Jun 2016 14:04:57 +0200
Subject: [PATCH] Update mcp_can.cpp

---
 mcp_can.cpp | 40 ++++++++++++++++++++++++++++++----------
 1 file changed, 30 insertions(+), 10 deletions(-)

diff --git a/mcp_can.cpp b/mcp_can.cpp
index b21eeec..1985a97 100644
--- a/mcp_can.cpp
+++ b/mcp_can.cpp
@@ -57,11 +57,15 @@
 *********************************************************************************************************/
 void MCP_CAN::mcp2515_reset(void)
 {
-    SPI_BEGIN();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_BEGIN();
+    #endif
     MCP2515_SELECT();
     spi_readwrite(MCP_RESET);
     MCP2515_UNSELECT();
-    SPI_END();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_END();
+    #endif
     delay(10);
 }
 
@@ -73,13 +77,17 @@ INT8U MCP_CAN::mcp2515_readRegister(const INT8U address)
 {
     INT8U ret;
 
-    SPI_BEGIN();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_BEGIN();
+    #endif
     MCP2515_SELECT();
     spi_readwrite(MCP_READ);
     spi_readwrite(address);
     ret = spi_read();
     MCP2515_UNSELECT();
-    SPI_END();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_END();
+    #endif
 
     return ret;
 }
@@ -91,7 +99,9 @@ INT8U MCP_CAN::mcp2515_readRegister(const INT8U address)
 void MCP_CAN::mcp2515_readRegisterS(const INT8U address, INT8U values[], const INT8U n)
 {
 	INT8U i;
-	SPI_BEGIN();
+	#ifdef SPI_HAS_TRANSACTION
+		SPI_BEGIN();
+	#endif
 	MCP2515_SELECT();
 	spi_readwrite(MCP_READ);
 	spi_readwrite(address);
@@ -100,7 +110,9 @@ void MCP_CAN::mcp2515_readRegisterS(const INT8U address, INT8U values[], const I
 		values[i] = spi_read();
 	}
 	MCP2515_UNSELECT();
-	SPI_END();
+	#ifdef SPI_HAS_TRANSACTION
+		SPI_END();
+	#endif
 }
 
 /*********************************************************************************************************
@@ -109,13 +121,17 @@ void MCP_CAN::mcp2515_readRegisterS(const INT8U address, INT8U values[], const I
 *********************************************************************************************************/
 void MCP_CAN::mcp2515_setRegister(const INT8U address, const INT8U value)
 {
-    SPI_BEGIN();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_BEGIN();
+    #endif
     MCP2515_SELECT();
     spi_readwrite(MCP_WRITE);
     spi_readwrite(address);
     spi_readwrite(value);
     MCP2515_UNSELECT();
-    SPI_END();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_END();
+    #endif
 }
 
 /*********************************************************************************************************
@@ -125,7 +141,9 @@ void MCP_CAN::mcp2515_setRegister(const INT8U address, const INT8U value)
 void MCP_CAN::mcp2515_setRegisterS(const INT8U address, const INT8U values[], const INT8U n)
 {
     INT8U i;
-    SPI_BEGIN();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_BEGIN();
+    #endif
     MCP2515_SELECT();
     spi_readwrite(MCP_WRITE);
     spi_readwrite(address);
@@ -135,7 +153,9 @@ void MCP_CAN::mcp2515_setRegisterS(const INT8U address, const INT8U values[], co
         spi_readwrite(values[i]);
     }
     MCP2515_UNSELECT();
-    SPI_END();
+    #ifdef SPI_HAS_TRANSACTION
+    	SPI_END();
+    #endif
 }
 
 /*********************************************************************************************************