void Initialize_Hardware(){
Config_MatrixKeypad();
Config_LCD();
configure_EEPROM();
ConfigureSpi(SERCOMX0, 2000000);
pinMode(F350Ready, INPUT); //make input with pull up
pinMode(BuzzerPin, WEAKOUT);
pinMode(PA09, OUTPUT);
PinSet(PA09);
//pinMux(PB23, GCLKmux);
}
/*******************************************************************************
Function: Serialize(const CharStream* char_stream_send,
CharStream* char_stream_recv,
SpiMasterConfigOptions optBefore,
SpiMasterConfigOptions optAfter
)
Arguments: char_stream_send, the char stream to be sent from the SPI master to
the Flash memory, usually contains instruction, address, and data to be
programmed.
char_stream_recv, the char stream to be received from the Flash memory
to the SPI master, usually contains data to be read from the memory.
optBefore, configurations of the SPI master before any transfer/receive
optAfter, configurations of the SPI after any transfer/receive
Return Values:TRUE
Description: This function can be used to encapsulate a complete transfer/receive
operation
Pseudo Code:
Step 1 : perform pre-transfer configuration
Step 2 : perform transfer/ receive
Step 3 : perform post-transfer configuration
*******************************************************************************/
SPI_STATUS Serialize_SPI(const CharStream* char_stream_send,
CharStream* char_stream_recv,
SpiConfigOptions optBefore,
SpiConfigOptions optAfter
)
{
uint8 *char_send, *char_recv;
uint16 rx_len = 0, tx_len = 0;
#ifdef ENABLE_PRINT_DEBUG
int i;
printf("\nSEND: ");
for(i=0; i<char_stream_send->length; i++)
printf(" 0x%x ", char_stream_send->pChar[i]);
printf("\n");
#endif
tx_len = char_stream_send->length;
char_send = char_stream_send->pChar;
if (NULL_PTR != char_stream_recv)
{
rx_len = char_stream_recv->length;
char_recv = char_stream_recv->pChar;
}
ConfigureSpi(optBefore);
while (tx_len-- > 0)
{
WR_R(SPIWRFIFO, *(char_send++));
CHECK_BSY;
RD_R(SPIRDFIFO);
}
while (rx_len-- > 0)
{
WR_R(SPIWRFIFO, DUMMY_BYTE);
CHECK_BSY;
if (CHECK_RX_FIFO)
*char_recv++ = RD_R(SPIRDFIFO);
else
rx_len++;
}
#ifdef ENABLE_PRINT_DEBUG
printf("\nRECV: ");
for(i=0; i<char_stream_recv->length; i++)
printf(" 0x%x ", char_stream_recv->pChar[i]);
printf("\n");
#endif
ConfigureSpi(optAfter);
return RetSpiSuccess;
}
