MC56F84786 串口DMA发送

roy019

我是用PE模式的，请问下如何配置串口DMA发送？

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eefocus_3908603

z这个基于MC56F84786的串口Demo有么？

eefocus_3908603

void main(void)
{
  /* Write your local variable definition here */

  /*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
  PE_low_level_init();
  /*** End of Processor Expert internal initialization.                    ***/

  /* Write your code here */
  //set up the GPIOF4(GPIOF4/TXD1/XB_OUT4) as peripheral
  SIM_PCE0|=0x02; //enable GPIOF clock
  GPIOF_PER|=0x10; //configure GPOIOF4 as peripheral
  SIM_GPSFL&=0xFEFF; //clear F4 bit so that GPIOF4 is TXD1 pin
  //initialize DMA and Sci
#if 0
  DMA_REQC|=800000; //clear the DMA1
  DMA_REQC=0x0000;
  DMA_SAR1=((long)&message[0]);
  DMA_DAR1=((long)FFQSCI1_DATA)<<1;
#endif  
  //enable transmitter DMA
  QSCI1_CTRL1|=0x04;  //enable Transmitter
  QSCI1_CTRL2|=0x02; //set TDE to enable transmitter DMA
  //enable Sci by setting the TE bit


// DMA_DCR0|=0x40000000; //set the REQ bit to enable DMA
  AS1_SendChar(message[0]);
  
  for(;;) {}
}