UART mode linflex baud rate setting issue on MPC5604E

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UART mode linflex baud rate setting issue on MPC5604E

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jimbu
Contributor I

Hello I'm using following code to setup my LINFLEX1 into uart mode and 19200bps. The problem is that via the debugger I can see that procesor set the LINFLEX1.LINFBRR.B.DIV_F = 0x05 but didn't set up the integer part in LINFLEX1.LINIBRR.B.IBR = 0xD0; Linflex is during this step still in initialization mode but the register value doesn't change even when I try to write it in debug session in eclipse based codewarrior manually.

Thank you in advance for any ideas.

Linflex initialization code follows:

LINFLEX1.LINCR1.R &= ~(1<<LINFLEX1.LINCR1.B.SLEEP);    /* Put LINFlex hardware in init mode */

  LINFLEX1.LINCR1.R |= (1<<LINFLEX1.LINCR1.B.INIT);    /* Put LINFlex hardware in init mode */

  while(LINFLEX1.LINSR.B.LINS != 0x01) { } /* Wait for the transition to initialization mode*/

  /*Set up baud rate for UART - LINFLEX1 - default to 19200bps*/

  LINFLEX1.LINFBRR.B.DIV_F = 0x05;

  LINFLEX1.LINIBRR.B.IBR = 0xD0;

  /*Setup UART mode*/

  LINFLEX1.UARTCR.R |= (1<<LINFLEX1.UARTCR.B.UART); /*Enable UART mode*/

  LINFLEX1.UARTCR.R = 0x33; /*8-bit data, Enable receive, Enable transmit*/

  /*Configure ports*/

  SIUL.PCR[8].R = 0x0103; /* MPC56xxE: Configure port A8 as LIN1RX */

  SIUL.PCR[9].R = 0x0C00; /* MPC56xxE: Configure port A9 as LIN1TX */

  /*Back to normal mode*/

  LINFLEX1.LINCR1.R = 0x90; /* Put LINFlex hardware in normal mode */

  while(LINFLEX1.LINSR.B.LINS != 0) { } /* Wait for hardware to go to normal/sleep mode */

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