C++ (Cpp) setSPIspeed示例

示例#1

文件： max7301.cpp 项目： koson/gpio_expander

void max7301::postSetup(const uint8_t csPin,const uint8_t haenAdrs,uint32_t spispeed){
	#if defined (SPI_HAS_TRANSACTION)
		if (spispeed > 0) setSPIspeed(spispeed);
	#endif
	_cs = csPin;
	if (haenAdrs > 0x19 && haenAdrs < 0x28){//HAEN works between 0x20...0x27
		_adrs = haenAdrs;
		_useHaen = 1;
	} else {
		_adrs = 0;
		_useHaen = 0;
	}
	_readCmd =  (_adrs << 1) | 1;
	_writeCmd = _adrs << 1;
	//setup register values for this chip
	IOCON = 	0x0A;
	IODIR = 	0x00;
	GPPU = 		0x0C;
	GPIO = 		0x12;
	GPINTEN = 	0x04;
	IPOL = 		0x02;
	DEFVAL = 	0x06;
	INTF = 		0x0E;
	INTCAP = 	0x10;
	OLAT = 		0x14;
	INTCON = 	0x08;
}

示例#2

文件： mcp23s08.cpp 项目： sumotoy/gpio_expander

void mcp23s08::postSetup(const uint8_t csPin,const uint8_t haenAdrs,uint32_t spispeed){
	#if defined (SPI_HAS_TRANSACTION)
		if (spispeed > 0) setSPIspeed(spispeed);
	#endif
	_cs = csPin;
	if (haenAdrs >= 0x20 && haenAdrs <= 0x23){//HAEN works between 0x20...0x23
		_adrs = haenAdrs;
		_useHaen = 1;
	} else {
		_adrs = 0;
		_useHaen = 0;
	}
	_readCmd =  (_adrs << 1) | 1;
	_writeCmd = _adrs << 1;
	//setup register values for this chip
	IOCON = 	0x05;
	IODIR = 	0x00;
	GPPU = 		0x06;
	GPIO = 		0x09;
	GPINTEN = 	0x02;
	IPOL = 		0x01;
	DEFVAL = 	0x03;
	INTF = 		0x07;
	INTCAP = 	0x08;
	OLAT = 		0x0A;
	INTCON = 	0x04;
}

示例#3

文件： mcp23s17.cpp 项目： Ironicster/gpio_expander

mcp23s17::mcp23s17(const uint8_t csPin,const uint8_t haenAdrs,uint32_t spispeed){
	setSPIspeed(spispeed);
	
	postSetup(csPin,haenAdrs);
}