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@ -102,54 +102,31 @@ unsigned portLONG ulBaudRateCount;
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xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
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xCharsForTx = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
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#if 0
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USB_PORT_SEL |= USB_PIN_RXD + USB_PIN_TXD;
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USB_PORT_DIR |= USB_PIN_TXD;
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USB_PORT_DIR &= ~USB_PIN_RXD;
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/* Reset UART. */
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UCA0CTL1 |= UCSWRST;
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UCA1CTL1 |= UCSWRST;
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/* Use SMCLK. */
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UCA0CTL1 = UCSSEL0 | UCSSEL1;
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UCA1CTL1 = UCSSEL0 | UCSSEL1;
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/* Setup baud rate low byte. */
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UCA0BR0 = ( unsigned portCHAR ) ( ulBaudRateCount & ( unsigned portLONG ) 0xff );
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UCA1BR0 = ( unsigned portCHAR ) ( ulBaudRateCount & ( unsigned portLONG ) 0xff );
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/* Setup baud rate high byte. */
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ulBaudRateCount >>= 8UL;
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UCA0BR1 = ( unsigned portCHAR ) ( ulBaudRateCount & ( unsigned portLONG ) 0xff );
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UCA1BR1 = ( unsigned portCHAR ) ( ulBaudRateCount & ( unsigned portLONG ) 0xff );
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/* UCLISTEN sets loopback mode! */
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UCA0STAT = UCLISTEN;
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UCA1STAT = UCLISTEN;
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/* Clear interrupts. */
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// UCA0IFG = 0;
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/* Enable interrupts. */
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UCA0IE |= UCRXIE;
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UCA1IE |= UCRXIE;
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/* Take out of reset. */
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UCA0CTL1 &= ~UCSWRST;
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#else
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USB_PORT_SEL |= USB_PIN_RXD + USB_PIN_TXD;
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USB_PORT_DIR |= USB_PIN_TXD;
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USB_PORT_DIR &= ~USB_PIN_RXD;
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UCA1CTL1 |= UCSWRST; //Reset State
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UCA1CTL0 = UCMODE_0;
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UCA1CTL0 &= ~UC7BIT; // 8bit char
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UCA1CTL1 |= UCSSEL_2;
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// UCA1BR0 = 16; // 8Mhz/57600=138
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// UCA1BR1 = 1;
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/* Setup baud rate low byte. */
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UCA0BR0 = ( unsigned portCHAR ) ( ulBaudRateCount & ( unsigned portLONG ) 0xff );
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/* Setup baud rate high byte. */
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ulBaudRateCount >>= 8UL;
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UCA0BR1 = ( unsigned portCHAR ) ( ulBaudRateCount & ( unsigned portLONG ) 0xff );
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UCA1MCTL = 0xE;
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UCA1CTL1 &= ~UCSWRST;
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UCA1IE |= UCRXIE;
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#endif
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UCA1CTL1 &= ~UCSWRST;
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}
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portEXIT_CRITICAL();
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@ -180,60 +157,46 @@ signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOut
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signed portBASE_TYPE xReturn;
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xReturn = xQueueSend( xCharsForTx, &cOutChar, xBlockTime );
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UCA0IE |= UCTXIE;
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UCA1IE |= UCTXIE;
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return xReturn;
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}
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/*-----------------------------------------------------------*/
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char cTxedBytes[ 512 ];
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char cRxedBytes[ 512 ];
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volatile int xIndex = 0;
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volatile int xIndex2 = 0;
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#pragma vector=USCI_A0_VECTOR
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#pragma vector=USCI_A1_VECTOR
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static __interrupt void prvUSCI_A0_ISR( void )
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{
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signed portCHAR cChar;
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portBASE_TYPE xTaskWoken = pdFALSE;
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portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
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while( UCA0IFG & UCRXIFG )
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while( ( UCA1IFG & UCRXIFG ) != 0 )
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{
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/* Get the character from the UART and post it on the queue of Rxed
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characters. */
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cChar = UCA0RXBUF;
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if( xIndex2 < 500 )
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{
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cRxedBytes[ xIndex2++ ] = cChar;
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}
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cChar = UCA1RXBUF;
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xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
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}
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if( UCA0IFG & UCTXIFG )
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/* If there is a Tx interrupt pending and the tx interrupts are enabled. */
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if( ( UCA1IFG & UCTXIFG ) != 0 )
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{
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/* The previous character has been transmitted. See if there are any
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further characters waiting transmission. */
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if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xTaskWoken ) == pdTRUE )
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{
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if( xIndex < 500 )
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{
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cTxedBytes[ xIndex++ ] = cChar;
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}
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/* There was another character queued - transmit it now. */
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UCA0TXBUF = cChar;
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UCA1TXBUF = cChar;
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}
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else
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{
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/* There were no other characters to transmit - disable the Tx
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interrupt. */
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UCA0IE &= ~UCTXIE;
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UCA1IE &= ~UCTXIE;
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}
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}
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__bic_SR_register_on_exit( SCG1 + SCG0 + OSCOFF + CPUOFF );
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__bic_SR_register_on_exit( SCG1 + SCG0 + OSCOFF + CPUOFF );
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portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
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}
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