void enc28j60WriteOp(unsigned char op, unsigned char address, unsigned char data)
{
unsigned char dat = 0;
ENC28J60_CSL();
// issue write command
dat = op | (address & ADDR_MASK);
SPI1_ReadWrite(dat);
// write data
dat = data;
SPI1_ReadWrite(dat);
ENC28J60_CSH();
}
void enc28j60WriteOp(uint8_t op, uint8_t address, uint8_t data)
{
uint8_t dat = 0;
ENC28J60_CSL();
// issue write command
dat = op | (address & ADDR_MASK);
SPI1_ReadWrite(dat);
// write data
dat = data;
SPI1_ReadWrite(dat);
ENC28J60_CSH();
}
void enc28j60WriteBuffer(unsigned int len, unsigned char* data)
{
ENC28J60_CSL();
// issue write command
SPI1_ReadWrite(ENC28J60_WRITE_BUF_MEM);
while(len)
{
len--;
SPI1_ReadWrite(*data);
data++;
}
ENC28J60_CSH();
}
void enc28j60ReadBuffer(unsigned int len, unsigned char* data)
{
ENC28J60_CSL();
// issue read command
SPI1_ReadWrite(ENC28J60_READ_BUF_MEM);
while(len)
{
len--;
// read data
*data = (unsigned char)SPI1_ReadWrite(0);
data++;
}
*data='\0';
ENC28J60_CSH();
}
unsigned char enc28j60ReadOp(unsigned char op, unsigned char address)
{
unsigned char dat = 0;
ENC28J60_CSL();
dat = op | (address & ADDR_MASK);
SPI1_ReadWrite(dat);
dat = SPI1_ReadWrite(0xFF);
// do dummy read if needed (for mac and mii, see datasheet page 29)
if(address & 0x80)
{
dat = SPI1_ReadWrite(0xFF);
}
// release CS
ENC28J60_CSH();
return dat;
}
