void main(void)
{
int cdc_in;
int uart_in;
volatile UINT8 u8Error;
PTBPE_PTBPE5 = 1; // DEMOFLEXISJMSD board
PTBDD_PTBDD5 = _IN; // Initialize Button in
hw_init(); /* MCU Initialization */
SPI_Init(); /* SPI Module Init */
u8Error=SD_Init(); /* SD Card Init */
FAT_Read_Master_Block(); /* FAT Driver Init */
cdc_in=uart_in=0xff+1; /* USB CMX Init */
usb_cfg_init();
cdc_init();
while(PTBD_PTBD5); /* Wait until button clic */
CDC_Send_String("\r\n\r\n\tSD Card Terminal\r\n");
while(1)
{
cdc_process(); /* USB CMX CDC process */
FAT_LS(); /* Simple function that shows the content*/
MiniCom(); /* User Interface call */
}
}
void Comm2PC_Task(void)
{
CHAR8 c;
/* configure USB and init CDC driver */
usb_cfg_init();
cdc_init();
/* This loop will receive and process characters from the USB. */
for(;;)
{
while((*cdc_kbhit)())
{
c=(CHAR8)(*cdc_getch)();
Comm2PC_FSM(c);
}
cdc_process();
OSSemPend(USB_Sem,0);
}
}
/****************************************************************************
************************** Function definitions ****************************
***************************************************************************/
void main(void)
{
int cdc_in;
int uart_in;
DC16_Init();
delay_ms(100);
do_cool_LED_stuff(ALL_ON); // power-on test
DC16_TX_Test();
do_cool_LED_stuff(ALL_OFF);
cdc_in=uart_in=0xff+1; // USB CMX init
cdc_init();
// sorry for this spaghetti-like state machine - i'm just a lowly electrical engineer :)
while(1)
{
// initialize USB module if it hasn't started yet or has been shutdown
// this will save power if the USB module isn't needed or used...
if (!usb_enabled_flag && USB_DETECT) // when USB plugged in...
{
hw_init(); // setup usb & 48MHz clock using 12MHz external crystal (from \USB_CMX\target.c)
usb_cfg_init();
SPI2BR = 0x11; // SPI baud rate, 3MHz @ 24MHz bus clock
TPM2SC_PS = 0b010; // TPM2 timer prescaler = /4
usb_enabled_flag = 1;
}
else if (usb_enabled_flag && !USB_DETECT) // when USB removed, reduce clock speed to 12MHz...
{
usb_stop();
set_clock_12MHz();
usb_enabled_flag = 0;
}
if (!SW_MODE) // if button is pressed...
{
delay_ms(50); // poor man's debounce
while (!SW_MODE) // while button is held down...
{
state_change_flag = 1;
led_state = ALL_OFF;
}
}
if (state_change_flag) // if there has been a change in state
{
if (power_on_flag && usb_enabled_flag && USB_DETECT) // this is only run once at power-on if USB is ready
{
power_on_flag = 0;
Terminal_Send_String("\n\r");
Terminal_Send_String((unsigned char*)a_word_to_the_wise);
Terminal_Send_String("\n\r\n\rWelcome to the debug terminal...\n\r\n\r");
}
state_change_flag = 0;
switch (state) // ...then set the new state
{
case SLEEP:
state = RX;
led_state = KNIGHT_RIDER;
if (usb_enabled_flag && USB_DETECT) Terminal_Send_String("Entering RECEIVE mode.\n\r");
break;
case RX:
state = TX;
led_state = TRANSMIT;
if (usb_enabled_flag && USB_DETECT) Terminal_Send_String("Entering TRANSMIT mode.\n\r");
break;
case TX:
default:
state = SLEEP;
led_state = ALL_OFF;
if (usb_enabled_flag && USB_DETECT) Terminal_Send_String("Going to SLEEP.\n\r");
break;
}
}
switch (state)
{
case RX:
DC16_RX_Mode();
break;
case TX:
DC16_TX_Mode();
break;
case SLEEP: // sleepy time!
default:
DC16_Sleep_Mode();
}
}
}
