uint8_t W5100Class::init(void)
{
uint16_t TXBUF_BASE, RXBUF_BASE;
uint8_t i;
delay(200);
//Serial.println("w5100 init");
#ifdef USE_SPIFIFO
SPIFIFO.begin(W5200_SS_PIN, SPI_CLOCK_12MHz); // W5100 is 14 MHz max
#else
SPI.begin();
SPI.setClockDivider(SPI_CLOCK_DIV2);
initSS();
#endif
if (isW5100()) {
CH_BASE = 0x0400;
SSIZE = 2048;
SMASK = 0x07FF;
TXBUF_BASE = 0x4000;
RXBUF_BASE = 0x6000;
writeTMSR(0x55);
writeRMSR(0x55);
} else if (isW5200()) {
#ifdef USE_SPIFIFO
//SPIFIFO.begin(W5200_SS_PIN, SPI_CLOCK_24MHz); // W5200 is 33 MHz max
#endif
CH_BASE = 0x4000;
SSIZE = 4096;
SMASK = 0x0FFF;
TXBUF_BASE = 0x8000;
RXBUF_BASE = 0xC000;
for (i=0; i<MAX_SOCK_NUM; i++) {
writeSnRX_SIZE(i, SSIZE >> 10);
writeSnTX_SIZE(i, SSIZE >> 10);
}
for (; i<8; i++) {
writeSnRX_SIZE(i, 0);
writeSnTX_SIZE(i, 0);
}
} else {
void W5100Class::init(void)
{
delay(300);
SPI.begin(SPI_CS);
#ifdef W5200
// more initila delay is required
delay(200);
// should be ok with no divider, W5200 support 80Mhz and SAM3X8E is cadenced to 84Mhz..
// Set clock to 84Mhz but this setting NOT work: SPI clock shaping is not good.
// SPI.setClockDivider(SPI_CS, 1);
// Set clock to 42Mhz
SPI.setClockDivider(SPI_CS, 2);
#else
// Set clock to 4Mhz (W5100 should support up to 14Mhz)
SPI.setClockDivider(SPI_CS, 21);
#endif
SPI.setDataMode(SPI_CS, SPI_MODE0);
writeMR(1<<RST);
#ifdef W5200
for (int i=0; i<MAX_SOCK_NUM; i++) {
write((0x4000 + i * 0x100 + 0x001F), 2);
write((0x4000 + i * 0x100 + 0x001E), 2);
}
#else
writeTMSR(0x55);
writeRMSR(0x55);
#endif
for (int i=0; i<MAX_SOCK_NUM; i++) {
SBASE[i] = TXBUF_BASE + SSIZE * i;
RBASE[i] = RXBUF_BASE + RSIZE * i;
}
}
void W5100Class::init(void)
{
delay(300);
SPI.begin(SPI_CS);
#ifdef W5200
// should be ok with no divider, W5200 support 80Mhz and SAM3X8E is cadenced to 84Mhz..
//have tried with webserver sample and it's ok but require more tests
// Set clock to 42Mhz (W5200 should support up to 80Mhz)
SPI.setClockDivider(SPI_CS, 2);
// Set clock to 4Mhz
// SPI.setClockDivider(SPI_CS, 21);
#else
// Set clock to 4Mhz (W5100 should support up to 14Mhz)
SPI.setClockDivider(SPI_CS, 21);
#endif
SPI.setDataMode(SPI_CS, SPI_MODE0);
writeMR(1<<RST);
#ifdef W5200
for (int i=0; i<MAX_SOCK_NUM; i++) {
write((0x4000 + i * 0x100 + 0x001F), 2);
write((0x4000 + i * 0x100 + 0x001E), 2);
}
#else
writeTMSR(0x55);
writeRMSR(0x55);
#endif
for (int i=0; i<MAX_SOCK_NUM; i++) {
SBASE[i] = TXBUF_BASE + SSIZE * i;
RBASE[i] = RXBUF_BASE + RSIZE * i;
}
}
