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Update mcp2515.cpp #93

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Update mcp2515.cpp #93

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32 changes: 18 additions & 14 deletions mcp2515.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -12,20 +12,24 @@ const struct MCP2515::RXBn_REGS MCP2515::RXB[N_RXBUFFERS] = {
{MCP_RXB1CTRL, MCP_RXB1SIDH, MCP_RXB1DATA, CANINTF_RX1IF}
};

MCP2515::MCP2515(const uint8_t _CS, const uint32_t _SPI_CLOCK, SPIClass * _SPI)
{
if (_SPI != nullptr) {
SPIn = _SPI;
}
else {
SPIn = &SPI;
SPIn->begin();
}

SPICS = _CS;
SPI_CLOCK = _SPI_CLOCK;
pinMode(SPICS, OUTPUT);
endSPI();
MCP2515::MCP2515(const uint8_t _CS, const uint32_t _SPI_CLOCK, SPIClass *_SPI) {
if (_SPI != nullptr) { // It maintains compatibility with old sketches.
begin(_SPI);
}
SPICS = _CS;
SPI_CLOCK = _SPI_CLOCK;
}

bool MCP2515::begin(SPIClass *_SPI) {
if (_SPI != nullptr) {
SPIn = _SPI;
} else {
SPIn = &SPI;
SPIn->begin();
}
pinMode(SPICS, OUTPUT);
endSPI();
return true;
}

void MCP2515::startSPI() {
Expand Down