| Line 30... |
Line 30... |
static unsigned char reflect[256];
|
static unsigned char reflect[256];
|
static unsigned char reflectNibble[256];
|
static unsigned char reflectNibble[256];
|
static OS_Semaphore_t *SemEthernet, *SemEthTransmit;
|
static OS_Semaphore_t *SemEthernet, *SemEthTransmit;
|
static int gIndex; //byte index into 0x13ff0000 receive buffer
|
static int gIndex; //byte index into 0x13ff0000 receive buffer
|
static int gCrcChecked;
|
static int gCrcChecked;
|
|
static volatile int ethTxBusy;
|
|
|
|
|
//Read received data from 0x13ff0000. Data starts with 0x5d+MACaddress.
|
//Read received data from 0x13ff0000. Data starts with 0x5d+MACaddress.
|
//Data is being received while processing the data. Therefore,
|
//Data is being received while processing the data. Therefore,
|
//all errors require waiting and then re-processing the data
|
//all errors require waiting and then re-processing the data
|
| Line 46... |
Line 47... |
unsigned long crc;
|
unsigned long crc;
|
int byteCrc;
|
int byteCrc;
|
volatile unsigned char *buf = (unsigned char*)ETHERNET_RECEIVE;
|
volatile unsigned char *buf = (unsigned char*)ETHERNET_RECEIVE;
|
int packetExpected;
|
int packetExpected;
|
|
|
|
while(ethTxBusy)
|
|
OS_ThreadSleep(1);
|
|
|
//Find the start of a frame
|
//Find the start of a frame
|
packetExpected = MemoryRead(IRQ_STATUS) & IRQ_ETHERNET_RECEIVE;
|
packetExpected = MemoryRead(IRQ_STATUS) & IRQ_ETHERNET_RECEIVE;
|
MemoryRead(ETHERNET_REG); //clear receive interrupt
|
MemoryRead(ETHERNET_REG); //clear receive interrupt
|
emptyCount = 0;
|
emptyCount = 0;
|
|
|
| Line 152... |
Line 156... |
int i, byte, shift;
|
int i, byte, shift;
|
unsigned long crc;
|
unsigned long crc;
|
volatile unsigned char *buf = (unsigned char*)ETHERNET_TRANSMIT;
|
volatile unsigned char *buf = (unsigned char*)ETHERNET_TRANSMIT;
|
|
|
OS_SemaphorePend(SemEthTransmit, OS_WAIT_FOREVER);
|
OS_SemaphorePend(SemEthTransmit, OS_WAIT_FOREVER);
|
|
ethTxBusy = 1;
|
|
|
//Wait for previous transfer to complete
|
//Wait for previous transfer to complete
|
for(i = 0; i < 10000; ++i)
|
for(i = 0; i < 10000; ++i)
|
{
|
{
|
if(MemoryRead(IRQ_STATUS) & IRQ_ETHERNET_TRANSMIT)
|
if(MemoryRead(IRQ_STATUS) & IRQ_ETHERNET_TRANSMIT)
|
| Line 192... |
Line 197... |
//Start transfer
|
//Start transfer
|
length = (length + 12 + 4) >> 2;
|
length = (length + 12 + 4) >> 2;
|
MemoryWrite(ETHERNET_REG, length);
|
MemoryWrite(ETHERNET_REG, length);
|
Led(2, 0);
|
Led(2, 0);
|
|
|
|
//Wait for previous transfer to complete
|
|
for(i = 0; i < 10000; ++i)
|
|
{
|
|
if(MemoryRead(IRQ_STATUS) & IRQ_ETHERNET_TRANSMIT)
|
|
break;
|
|
}
|
|
ethTxBusy = 0;
|
|
|
OS_SemaphorePost(SemEthTransmit);
|
OS_SemaphorePost(SemEthTransmit);
|
}
|
}
|
|
|
|
|
void EthernetThread(void *arg)
|
void EthernetThread(void *arg)
|
| Line 388... |
Line 401... |
|
|
//Start receive DMA
|
//Start receive DMA
|
MemoryWrite(GPIO0_SET, ETHERNET_ENABLE);
|
MemoryWrite(GPIO0_SET, ETHERNET_ENABLE);
|
}
|
}
|
|
|
No newline at end of file
|
No newline at end of file
|
|
|
No newline at end of file
|
No newline at end of file
|
