MPC5604B LINFLEX_2 register write error

ningwang — Tue, 21 Jun 2016 02:15:49 GMT

Hello, everyone, when I try to use LINFLEX_2 as lin slave, I met some registers write error. I download the example project "LinFlex0 Lin Slave example ",and my test HW is based on SPC560BMLL6.

Problem：

When I try to write LINFLEX_2.LINCR1.R = 0x2380;

I can see the address 0xFFE48000(LINFLEX_2.LINCR1.R), can not be written in 0x2380,but 0x0390.

I very confused about this. But if I try to write 0xFFE40000(LINFLEX_0.LINCR1.R), it's no error.

this is initialization code：

static void InitModesAndClks(void)

{

ME.MER.R = 0x0000001D; /* Enable DRUN, RUN0, SAFE, RESET modes */

/* Initialize PLL before turning it on: */

/* Use 1 of the next 2 lines depending on crystal frequency: */

CGM.FMPLL_CR.R = 0x02400100; /* 8 MHz xtal: Set PLL0 to 64 MHz */

/*CGM.FMPLL[0].CR.R = 0x12400100;*//* 40 MHz xtal: Set PLL0 to 64 MHz */

ME.RUN[0].R = 0x001F0074; /* RUN0 cfg: 16MHzIRCON,OSC0ON,PLL0ON,syclk=PLL */

//ME.RUNPC[0].R = 0x00000010; /* Peri. Cfg. 0 settings: only run in RUN0 mode */

ME.RUNPC[0].R = 0x000000FE; // enable peripherals run in all modes

/* Use the next lines as needed for MPC56xxB/S: */

//ME.PCTL[48].R = 0x0000; /* MPC56xxB LINFlex0: select ME.RUNPC[0] */

//ME.PCTL[49].R = 0x0000; // LINFlex[1]:

ME.PCTL[50].R = 0x0000; // LINFlex[2]:

ME.PCTL[68].R = 0x0000; /* MPC56xxB/S SIUL: select ME.RUNPC[0] */

/* Mode Transition to enter RUN0 mode: */

ME.MCTL.R = 0x40005AF0; /* Enter RUN0 Mode & Key */

ME.MCTL.R = 0x4000A50F; /* Enter RUN0 Mode & Inverted Key */

while (ME.IS.B.I_MTC != 1) {} /* Wait for mode transition to complete */

ME.IS.R = 0x00000001; /* Clear Transition flag */

}

static void InitLinFlex2(void)

{

/* enter INIT mode */

LINFLEX_2.LINCR1.R = 0x0081; /* SLEEP=0, INIT=1 */

/* wait for the INIT mode */

while (0x1000 != (LINFLEX_2.LINSR.R & 0xF000)) {}

/* configure pads */

//SIU.PCR[18].R = 0x0604; /* Configure pad PB2 for AF1 func: LIN0TX */

//SIU.PCR[19].R = 0x0100; /* Configure pad PB3 for LIN0RX */

SIU.PCR[40].R = 0x0604; /* Configure pad PC8 for AF1 func: LIN2TX */

SIU.PCR[41].R = 0x0100; /* Configure pad PC9 for LIN2RX */

/* configure baudrate 19200 */

/* assuming 64 MHz peripheral set 1 clock */

LINFLEX_2.LINFBRR.R = 11;//5;

LINFLEX_2.LINIBRR.R = 416;//208;

LINFLEX_2.LINCR2.R = 0x20; /* IOBE=1, Bit error resets LIN state machine *

LINFLEX_2.LINTCSR.R = 0; /* LIN timeout mode, no idle on timeout */

LINFLEX_2.BIDR.B.CCS = 0; /* enhanced checksum for LIN Slave */

LINFLEX_2.IFER.R = 0xF; // enable filters 0-3

LINFLEX_2.IFMR.R = 0x0; // filters 0 - 3 are in identifier list mode.

LINFLEX_2.IFCR0.R = 0x1E37; // 8bytes, TX data, ID=0x37, CCS=0

LINFLEX_2.IFCR1.R = 0x1C35; // 8bytes, RX data, ID=0x35, CCS=0

LINFLEX_2.IFCR2.R = 0x1F36; // 8bytes, TX data, ID=0x36, CCS=1

LINFLEX_2.IFCR3.R = 0x1D34; // 8bytes, RX data, ID=0x34, CCS=1

LINFLEX_2.LINIER.R = 0x7; // enable RX, TX and header interrupt

LINFLEX_2.LINCR1.R = 0x2380;

}

Can anyone help me to solve this problem? Thanks.

Original Attachment has been moved to: MPC5604B-LINFlex-LIN_Slave-CW210.rar

Re: MPC5604B LINFLEX_2 register write error

martin_kovar — Tue, 21 Jun 2016 06:03:16 GMT

Hi,

please look at the reference manual rev. 8.2, page 33.

Only LinFlex0 can be used as the slave.

Regards,

Martin

Re: MPC5604B LINFLEX_2 register write error

ningwang — Tue, 21 Jun 2016 06:07:11 GMT

thank you very much!

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