/** Receives a byte via the hardware USART, blocking until data is received or timeout expired.
*
* \return Received byte from the USART
*/
uint8_t XPROGTarget_ReceiveByte(void)
{
/* Switch to Rx mode if currently in Tx mode */
if (IsSending)
XPROGTarget_SetRxMode();
/* Wait until a byte has been received before reading */
while (!(UCSR1A & (1 << RXC1)) && !(TimeoutExpired));
return UDR1;
}
/** Disables the target's PDI interface, exits programming mode and starts the target's application. */
void XPROGTarget_DisableTargetPDI(void)
{
/* Switch to Rx mode to ensure that all pending transmissions are complete */
XPROGTarget_SetRxMode();
/* Turn off receiver and transmitter of the USART, clear settings */
UCSR1A = ((1 << TXC1) | (1 << RXC1));
UCSR1B = 0;
UCSR1C = 0;
/* Tristate all pins */
DDRD &= ~((1 << 5) | (1 << 3));
PORTD &= ~((1 << 5) | (1 << 3) | (1 << 2));
}
/** Receives a byte via the software USART, blocking until data is received.
*
* \return Received byte from the USART
*/
uint8_t XPROGTarget_ReceiveByte(void)
{
/* Switch to Rx mode if currently in Tx mode */
if (IsSending)
XPROGTarget_SetRxMode();
/* Wait until a byte has been received before reading */
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return UDR1;
}
/** Receives a byte via the hardware USART, blocking until data is received or timeout expired.
*
* \return Received byte from the USART
*/
uint8_t XPROGTarget_ReceiveByte(void)
{
uint32_t dummy_read;
/* Switch to Rx mode if currently in Tx mode */
if (IsSending)
XPROGTarget_SetRxMode();
/* Wait until a byte has been received before reading */
//usart_getchar(USART_PDI, &dummy_read);
while((usart_read(USART_PDI, &dummy_read) == 1) && (TimeoutTicksRemaining));
return dummy_read;
}
/** Disables the target's TPI interface, exits programming mode and starts the target's application. */
void XPROGTarget_DisableTargetTPI(void)
{
/* Switch to Rx mode to ensure that all pending transmissions are complete */
XPROGTarget_SetRxMode();
/* Turn off receiver and transmitter of the USART, clear settings */
UCSR1A |= (1 << TXC1) | (1 << RXC1);
UCSR1B = 0;
UCSR1C = 0;
/* Set all USART lines as input, tristate */
DDRD &= ~((1 << 5) | (1 << 3));
PORTD &= ~((1 << 5) | (1 << 3) | (1 << 2));
/* Tristate target /RESET line */
AUX_LINE_DDR &= ~AUX_LINE_MASK;
AUX_LINE_PORT &= ~AUX_LINE_MASK;
}
/** Disables the target's PDI interface, exits programming mode and starts the target's application. */
void XPROGTarget_DisableTargetPDI(void)
{
/* Switch to Rx mode to ensure that all pending transmissions are complete */
if (IsSending)
XPROGTarget_SetRxMode();
/* Turn off receiver and transmitter of the USART, clear settings */
usart_disable_rx(USART_PDI);
usart_disable_tx(USART_PDI);
/* Tristate all pins */
gpio_configure_pin(PIN_PDIC_GPIO, PIN_PDIC_IN_FLAGS);
gpio_configure_pin(PIN_PDIDRX_GPIO, PIN_PDIDRX_FLAGS);
gpio_configure_pin(PIN_PDIDTX_GPIO, PIN_PDIDTX_IN_FLAGS);
/* Turn off USART */
sysclk_disable_peripheral_clock(USART_PDI_ID);
}
