[Kinetis] K60 flexbus 驱动RA8875 LCD

//其他的LCD控制器都是写数据时RS脚为高，写命令时RS脚为低，而RA8875刚好相反

//所以把LCD_SMD_ADDRESS和LCD_DATA_ADDRESS值反过来了，不知道对不对

//我在RS脚接了反相器，并把 LCD_CMD_ADDRESS定义为0x60000000，把LCD_DATA_ADDRESS

//定义为0x60010000也不行

#define LCD_CMD_ADDRESS     0x60010000

#define LCD_DATA_ADDRESS    0x60000000





static void WriteReg(unsigned char regAddr)

{

   unsigned short temp = 0xff00;

   temp |= regAddr;



    *((unsigned short *)LCD_CMD_ADDRESS) = temp;

}

static void WriteCommand(unsigned char mCommand)

{

    unsigned short temp = 0xff00;

    temp |= mCommand;



    *((unsigned short *)LCD_DATA_ADDRESS) = temp;

}





static void WriteData(unsigned short data)

{

    *((unsigned short *)LCD_DATA_ADDRESS) = data;

}

static void Flexbus_Init(void)

{

    SIM_CLKDIV1 |= SIM_CLKDIV1_OUTDIV3(0x2);//时钟分频96M/2=48M

    SIM_SOPT2 |= SIM_SOPT2_FBSL(3);

    SIM_SCGC7 |= SIM_SCGC7_FLEXBUS_MASK;     //使能flexbus



    FB_CSMR0 = 0;

    FB_CSAR0 = LCD_CMD_ADDRESS;              //设置基地址

    FB_CSCR0 = FB_CSCR_PS(2) | FB_CSCR_AA_MASK | FB_CSCR_BLS_MASK;      //16位数据宽度,右对齐,使能应答

    FB_CSCR0 |= FB_CSCR_WS(1) | FB_CSCR_RDAH(0) | FB_CSCR_WRAH(0);   //应答时间

    FB_CSMR0 = FB_CSMR_BAM(0x1) | FB_CSMR_V_MASK ; //2^(1+17)=128k



    //DATA

    PORTD_PCR6 = PORT_PCR_MUX(5);//DB0

    PORTD_PCR5 = PORT_PCR_MUX(5);//DB1

    PORTD_PCR4 = PORT_PCR_MUX(5);//DB2

    PORTD_PCR3 = PORT_PCR_MUX(5);//DB3

    PORTD_PCR2 = PORT_PCR_MUX(5);//DB4



    PORTC_PCR10 = PORT_PCR_MUX(5);//DB5

    PORTC_PCR9 = PORT_PCR_MUX(5);//DB6

    PORTC_PCR8 = PORT_PCR_MUX(5);//DB7

    PORTC_PCR7 = PORT_PCR_MUX(5);//DB8

    PORTC_PCR6 = PORT_PCR_MUX(5);//DB9

    PORTC_PCR5 = PORT_PCR_MUX(5);//DB10

    PORTC_PCR4 = PORT_PCR_MUX(5);//DB11



    PORTC_PCR2 = PORT_PCR_MUX(5);//DB12

    PORTC_PCR1 = PORT_PCR_MUX(5);//DB13

    PORTC_PCR0 = PORT_PCR_MUX(5);//DB14



    PORTB_PCR18 = PORT_PCR_MUX(5);//DB15



    //CS

    PORTD_PCR1 = PORT_PCR_MUX(5);

    //WR

    PORTC_PCR11 = PORT_PCR_MUX(5);

    //RD

    PORTB_PCR19 = PORT_PCR_MUX(5);

    //D/C

    PORTB_PCR17 = PORT_PCR_MUX(5);

}