Michel2/Seeed_Arduino_CAN
1
0
Fork 0
mirror of https://github.com/Seeed-Studio/Seeed_Arduino_CAN.git synced 2026-07-28 04:06:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #29 from xboxpro1/master

Browse Source 
SPI Begin and End
This commit is contained in:
Lowaichung
2016-07-06 10:41:46 +08:00
committed by GitHub
parent c392af0ae3 c6c192df37
commit b871902b33
2 changed files with 46 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mcp_can.cpp
+45
View File
@@ -20,6 +20,7 @@
Adlerweb
Btetz
Hurvajs
xboxpro1
The MIT License (MIT)
@@ -47,6 +48,8 @@
#define spi_readwrite SPI.transfer
#define spi_read() spi_readwrite(0x00)
#define SPI_BEGIN() SPI.beginTransaction(SPISettings(10000000, MSBFIRST, SPI_MODE0))
#define SPI_END() SPI.endTransaction()
/*********************************************************************************************************
** Function name: mcp2515_reset
@@ -54,9 +57,15 @@
*********************************************************************************************************/
void MCP_CAN::mcp2515_reset(void)
{
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_RESET);
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
delay(10);
}
@@ -68,11 +77,17 @@ INT8U MCP_CAN::mcp2515_readRegister(const INT8U address)
{
INT8U ret;
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_READ);
spi_readwrite(address);
ret = spi_read();
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
return ret;
}
@@ -84,6 +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;
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_READ);
spi_readwrite(address);
@@ -92,6 +110,9 @@ void MCP_CAN::mcp2515_readRegisterS(const INT8U address, INT8U values[], const I
values[i] = spi_read();
}
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
}
/*********************************************************************************************************
@@ -100,11 +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)
{
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_WRITE);
spi_readwrite(address);
spi_readwrite(value);
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
}
/*********************************************************************************************************
@@ -114,6 +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;
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_WRITE);
spi_readwrite(address);
@@ -123,6 +153,9 @@ void MCP_CAN::mcp2515_setRegisterS(const INT8U address, const INT8U values[], co
spi_readwrite(values[i]);
}
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
}
/*********************************************************************************************************
@@ -131,12 +164,18 @@ void MCP_CAN::mcp2515_setRegisterS(const INT8U address, const INT8U values[], co
*********************************************************************************************************/
void MCP_CAN::mcp2515_modifyRegister(const INT8U address, const INT8U mask, const INT8U data)
{
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_BITMOD);
spi_readwrite(address);
spi_readwrite(mask);
spi_readwrite(data);
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
}
/*********************************************************************************************************
@@ -146,10 +185,16 @@ void MCP_CAN::mcp2515_modifyRegister(const INT8U address, const INT8U mask, cons
INT8U MCP_CAN::mcp2515_readStatus(void)
{
INT8U i;
#ifdef SPI_HAS_TRANSACTION
SPI_BEGIN();
#endif
MCP2515_SELECT();
spi_readwrite(MCP_READ_STATUS);
i = spi_read();
MCP2515_UNSELECT();
#ifdef SPI_HAS_TRANSACTION
SPI_END();
#endif
return i;
}
mcp_can_dfs.h
+1
View File
@@ -20,6 +20,7 @@
Adlerweb
Btetz
Hurvajs
xboxpro1
The MIT License (MIT)