//*----------------------------------------------------------------------------
//* \fn AT91F_DBGU_Printk
//* \brief This function is used to send a string through the DBGU channel (Very low level debugging)
//*----------------------------------------------------------------------------
void AT91F_DBGU_Printk(char *buffer)
{
while (*buffer != '\0') {
while (!AT91F_US_TxReady((AT91PS_USART) AT91C_BASE_DBGU)) ;
AT91F_US_PutChar((AT91PS_USART) AT91C_BASE_DBGU, *buffer++);
}
}
//*----------------------------------------------------------------------------
//* \fn AT91F_Putc
//* \brief This function sends a car through the DBGU
//*----------------------------------------------------------------------------
int AT91F_Putc(int ch)
{
/* Our implementation of fputc */
while (!AT91F_US_TxReady((AT91PS_USART)AT91C_BASE_DBGU));
AT91F_US_PutChar((AT91PS_USART)AT91C_BASE_DBGU, (char)ch);
return ch;
}
static void __rb_flush(void)
{
char ch;
while (dbgu_rb_pull(&ch) >= 0) {
while (!AT91F_US_TxReady((AT91PS_USART) AT91C_BASE_DBGU)) ;
AT91F_US_PutChar((AT91PS_USART) AT91C_BASE_DBGU, ch);
}
}
//*----------------------------------------------------------------------------
//* \fn AT91F_DBGU_Printk
//* \brief This function is used to send a string through the DBGU channel (Very low level debugging)
//*----------------------------------------------------------------------------
void AT91F_DBGU_Printk(
char *buffer) // \arg pointer to a string ending by \0
{
while(*buffer != '\0') {
while (!AT91F_US_TxReady((AT91PS_USART)AT91C_BASE_DBGU));
AT91F_US_PutChar((AT91PS_USART)AT91C_BASE_DBGU, *buffer++);
}
}
void
put_hexdigit(unsigned char i)
{
if( i < 0x0A )
i += '0';
else
i += 'A' - 0x0A;
while (!AT91F_US_TxReady(AT91C_BASE_US0));
AT91F_US_PutChar(AT91C_BASE_US0, i);
}
static void my_putc(char c)
{
while (!AT91F_US_TxReady((AT91PS_USART)AT91C_BASE_DBGU));
AT91F_US_PutChar((AT91PS_USART)AT91C_BASE_DBGU, c);
}
int main()
{
int _row, _col;
char c;
U32 status;
AT91PS_PIO pPioA = AT91C_BASE_PIOA;
AT91PS_PMC pPMC = AT91C_BASE_PMC;
AT91PS_USART pUART0 = AT91C_BASE_US0;
/* Initialize the Atmel AT91SAM7X256 (watchdog, PLL clock, default interrupts, etc.) */
AT91F_LowLevel_Init();
/* Init the LCD */
InitLCD();
/* Init the UART */
AT91F_US_Configure(pUART0, MCK, AT91C_US_ASYNC_MODE, 9600L, 0 );
AT91F_PMC_EnablePeripheralClock(pPMC, 1 << AT91C_ID_US0 );
AT91F_US_EnableRx(pUART0);
AT91F_US_EnableTx(pUART0);
AT91F_PIO_Disable( pPioA, RXD0 | TXD0 | RTS0 | CTS0 );
AT91F_PIO_A_RegisterSelection( pPioA, RXD0 | TXD0 | RTS0 | CTS0 );
/* enable interrupts */
AT91F_Finalize_Init();
/* add your program here ... */
LCD_ClearScreen( LCD_COLOR_RED );
LCD_WriteString("UART Demo:", &Fixedsys_descriptor, 2, Fixedsys_descriptor.font_height,
LCD_COLOR_WHITE, LCD_COLOR_RED);
_row = 2*(Fixedsys_descriptor.font_height+2);
_col = 2;
/* ... and here */
while ( true )
{
status = AT91F_US_RxReady(pUART0);
if(status) {
c = AT91F_US_GetChar(pUART0);
AT91F_US_PutChar(pUART0, c);
LCD_WriteChar(c, &Fixedsys_descriptor, _col, _row, LCD_COLOR_WHITE, LCD_COLOR_RED);
if (_col<(128-Fixedsys_descriptor.font_width))
_col += Fixedsys_descriptor.font_width;
else {
_col = 2;
_row += (Fixedsys_descriptor.font_height+2);
if (_row>(128-Fixedsys_descriptor.font_height)) {
LCD_ClearScreen( LCD_COLOR_RED );
_row = 2; //Fixedsys_descriptor.font_height;
_col = 2;
}
}
}
else
status = AT91F_US_TxReady(pUART0);
if(status) {
//AT91F_US_PutChar(pUART0, '.');
}
}
/* Actually, the execution never gets here */
return 0;
}
int at91_dbgu_putc(int ch)
{
while (!AT91F_US_TxReady((AT91PS_USART)AT91C_BASE_DBGU));
AT91F_US_PutChar((AT91PS_USART)AT91C_BASE_DBGU, (char)ch);
return ch;
}
