init.c

来自「modbus开发程序包」· C语言 代码 · 共 684 行 · 第 1/2 页

    MCF_TIMER_DTXMR1 = 0;
    MCF_TIMER_DTRR1 = 0xffffffff;

    /* DMA Timer 2 disabled (DTMR2[RST] = 0) */
    MCF_TIMER_DTMR2 = 0;
    MCF_TIMER_DTXMR2 = 0;
    MCF_TIMER_DTRR2 = 0xffffffff;

    /* DMA Timer 3 disabled (DTMR3[RST] = 0) */
    MCF_TIMER_DTMR3 = 0;
    MCF_TIMER_DTXMR3 = 0;
    MCF_TIMER_DTRR3 = 0xffffffff;
}

/**********************************************************************
* init_interrupt_timers - Programmable Interrupt Timer (PIT) Modules  *
***********************************************************************/
static void
init_interrupt_timers( void )
{
    /* PIT0 disabled (PCSR0[EN]=0) */
    MCF_PIT_PCSR0 = 0;

    /* PIT1 disabled (PCSR1[EN]=0) */
    MCF_PIT_PCSR1 = 0;

    /* PIT2 disabled (PCSR2[EN]=0) */
    MCF_PIT_PCSR2 = 0;

    /* PIT3 disabled (PCSR3[EN]=0) */
    MCF_PIT_PCSR3 = 0;
}

/*********************************************************************
* init_watchdog_timers - Watchdog Timer Modules                      *
**********************************************************************/
static void
init_watchdog_timers( void )
{
    /* Watchdog Timer disabled (WCR[EN]=0) 
       NOTE: WCR and WMR cannot be written again until after the  
       processor is reset. 
     */
    MCF_WTM_WCR = MCF_WTM_WCR_WAIT | MCF_WTM_WCR_DOZE | MCF_WTM_WCR_HALTED;
    MCF_WTM_WMR = 0xffff;

    /* Core Watchdog Timer disabled (CWCR[CWE]=0) */
    MCF_SCM_CWCR = 0;
}

/*********************************************************************
* init_interrupt_controller - Interrupt Controller                   *
**********************************************************************/
static void
init_interrupt_controller( void )
{
    /* Configured interrupt sources in order of priority... 
       Level 7:  External interrupt /IRQ7, (initially masked) 
       Level 6:  External interrupt /IRQ6, (initially masked) 
       Level 5:  External interrupt /IRQ5, (initially masked) 
       Level 4:  External interrupt /IRQ4, (initially masked) 
       Level 3:  External interrupt /IRQ3, (initially masked) 
       Level 2:  External interrupt /IRQ2, (initially masked) 
       Level 1:  External interrupt /IRQ1, (initially masked) 
     */
    MCF_INTC0_ICR1 = 0;
    MCF_INTC0_ICR2 = 0;
    MCF_INTC0_ICR3 = 0;
    MCF_INTC0_ICR4 = 0;
    MCF_INTC0_ICR5 = 0;
    MCF_INTC0_ICR6 = 0;
    MCF_INTC0_ICR7 = 0;
    MCF_INTC0_ICR8 = 0;
    MCF_INTC0_ICR9 = 0;
    MCF_INTC0_ICR10 = 0;
    MCF_INTC0_ICR11 = 0;
    MCF_INTC0_ICR12 = 0;
    MCF_INTC0_ICR13 = 0;
    MCF_INTC0_ICR14 = 0;
    MCF_INTC0_ICR15 = 0;
    MCF_INTC0_ICR17 = 0;
    MCF_INTC0_ICR18 = 0;
    MCF_INTC0_ICR19 = 0;
    MCF_INTC0_ICR20 = 0;
    MCF_INTC0_ICR21 = 0;
    MCF_INTC0_ICR22 = 0;
    MCF_INTC0_ICR23 = 0;
    MCF_INTC0_ICR24 = 0;
    MCF_INTC0_ICR25 = 0;
    MCF_INTC0_ICR26 = 0;
    MCF_INTC0_ICR27 = 0;
    MCF_INTC0_ICR28 = 0;
    MCF_INTC0_ICR29 = 0;
    MCF_INTC0_ICR30 = 0;
    MCF_INTC0_ICR31 = 0;
    MCF_INTC0_ICR32 = 0;
    MCF_INTC0_ICR33 = 0;
    MCF_INTC0_ICR34 = 0;
    MCF_INTC0_ICR35 = 0;
    MCF_INTC0_ICR36 = 0;
    MCF_INTC0_ICR37 = 0;
    MCF_INTC0_ICR38 = 0;
    MCF_INTC0_ICR39 = 0;
    MCF_INTC0_ICR40 = 0;
    MCF_INTC0_ICR41 = 0;
    MCF_INTC0_ICR42 = 0;
    MCF_INTC0_ICR43 = 0;
    MCF_INTC0_ICR44 = 0;
    MCF_INTC0_ICR45 = 0;
    MCF_INTC0_ICR46 = 0;
    MCF_INTC0_ICR47 = 0;
    MCF_INTC0_ICR48 = 0;
    MCF_INTC0_ICR49 = 0;
    MCF_INTC0_ICR50 = 0;
    MCF_INTC0_ICR51 = 0;
    MCF_INTC0_ICR52 = 0;
    MCF_INTC0_ICR53 = 0;
    MCF_INTC0_ICR54 = 0;
    MCF_INTC0_ICR55 = 0;
    MCF_INTC0_ICR56 = 0;
    MCF_INTC0_ICR57 = 0;
    MCF_INTC0_ICR58 = 0;
    MCF_INTC0_ICR59 = 0;
    MCF_INTC0_ICR60 = 0;
    MCF_INTC1_ICR8 = 0;
    MCF_INTC1_ICR9 = 0;
    MCF_INTC1_ICR10 = 0;
    MCF_INTC1_ICR11 = 0;
    MCF_INTC1_ICR12 = 0;
    MCF_INTC1_ICR13 = 0;
    MCF_INTC1_ICR14 = 0;
    MCF_INTC1_ICR15 = 0;
    MCF_INTC1_ICR16 = 0;
    MCF_INTC1_ICR17 = 0;
    MCF_INTC1_ICR18 = 0;
    MCF_INTC1_ICR19 = 0;
    MCF_INTC1_ICR20 = 0;
    MCF_INTC1_ICR21 = 0;
    MCF_INTC1_ICR22 = 0;
    MCF_INTC1_ICR23 = 0;
    MCF_INTC1_ICR24 = 0;
    MCF_INTC1_ICR25 = 0;
    MCF_INTC1_ICR27 = 0;
    MCF_INTC1_ICR28 = 0;
    MCF_INTC1_ICR29 = 0;
    MCF_INTC1_ICR30 = 0;
    MCF_INTC1_ICR31 = 0;
    MCF_INTC1_ICR32 = 0;
    MCF_INTC1_ICR33 = 0;
    MCF_INTC1_ICR34 = 0;
    MCF_INTC1_ICR35 = 0;
    MCF_INTC1_ICR36 = 0;
    MCF_INTC1_ICR37 = 0;
    MCF_INTC1_ICR38 = 0;
    MCF_INTC1_ICR39 = 0;
    MCF_INTC1_ICR40 = 0;
    MCF_INTC1_ICR41 = 0;
    MCF_INTC1_ICR42 = 0;
    MCF_INTC1_ICR59 = 0;
    MCF_INTC0_IMRH = 0xffffffff;
    MCF_INTC0_IMRL = MCF_INTC0_IMRL_INT_MASK31 |
        MCF_INTC0_IMRL_INT_MASK30 |
        MCF_INTC0_IMRL_INT_MASK29 |
        MCF_INTC0_IMRL_INT_MASK28 |
        MCF_INTC0_IMRL_INT_MASK27 |
        MCF_INTC0_IMRL_INT_MASK26 |
        MCF_INTC0_IMRL_INT_MASK25 |
        MCF_INTC0_IMRL_INT_MASK24 |
        MCF_INTC0_IMRL_INT_MASK23 |
        MCF_INTC0_IMRL_INT_MASK22 |
        MCF_INTC0_IMRL_INT_MASK21 |
        MCF_INTC0_IMRL_INT_MASK20 |
        MCF_INTC0_IMRL_INT_MASK19 |
        MCF_INTC0_IMRL_INT_MASK18 |
        MCF_INTC0_IMRL_INT_MASK17 |
        MCF_INTC0_IMRL_INT_MASK16 |
        MCF_INTC0_IMRL_INT_MASK15 |
        MCF_INTC0_IMRL_INT_MASK14 |
        MCF_INTC0_IMRL_INT_MASK13 |
        MCF_INTC0_IMRL_INT_MASK12 |
        MCF_INTC0_IMRL_INT_MASK11 |
        MCF_INTC0_IMRL_INT_MASK10 |
        MCF_INTC0_IMRL_INT_MASK9 |
        MCF_INTC0_IMRL_INT_MASK8 |
        MCF_INTC0_IMRL_INT_MASK7 |
        MCF_INTC0_IMRL_INT_MASK6 |
        MCF_INTC0_IMRL_INT_MASK5 |
        MCF_INTC0_IMRL_INT_MASK4 |
        MCF_INTC0_IMRL_INT_MASK3 |
        MCF_INTC0_IMRL_INT_MASK2 | MCF_INTC0_IMRL_INT_MASK1;
    MCF_INTC1_IMRH = 0xffffffff;
    MCF_INTC1_IMRL = MCF_INTC1_IMRL_INT_MASK31 |
        MCF_INTC1_IMRL_INT_MASK30 |
        MCF_INTC1_IMRL_INT_MASK29 |
        MCF_INTC1_IMRL_INT_MASK28 |
        MCF_INTC1_IMRL_INT_MASK27 |
        MCF_INTC1_IMRL_INT_MASK26 |
        MCF_INTC1_IMRL_INT_MASK25 |
        MCF_INTC1_IMRL_INT_MASK24 |
        MCF_INTC1_IMRL_INT_MASK23 |
        MCF_INTC1_IMRL_INT_MASK22 |
        MCF_INTC1_IMRL_INT_MASK21 |
        MCF_INTC1_IMRL_INT_MASK20 |
        MCF_INTC1_IMRL_INT_MASK19 |
        MCF_INTC1_IMRL_INT_MASK18 |
        MCF_INTC1_IMRL_INT_MASK17 |
        MCF_INTC1_IMRL_INT_MASK16 |
        MCF_INTC1_IMRL_INT_MASK15 |
        MCF_INTC1_IMRL_INT_MASK14 |
        MCF_INTC1_IMRL_INT_MASK13 |
        MCF_INTC1_IMRL_INT_MASK12 |
        MCF_INTC1_IMRL_INT_MASK11 |
        MCF_INTC1_IMRL_INT_MASK10 |
        MCF_INTC1_IMRL_INT_MASK9 |
        MCF_INTC1_IMRL_INT_MASK8 |
        MCF_INTC1_IMRL_INT_MASK7 |
        MCF_INTC1_IMRL_INT_MASK6 |
        MCF_INTC1_IMRL_INT_MASK5 |
        MCF_INTC1_IMRL_INT_MASK4 |
        MCF_INTC1_IMRL_INT_MASK3 |
        MCF_INTC1_IMRL_INT_MASK2 | MCF_INTC1_IMRL_INT_MASK1;
}

/*********************************************************************
* init_pin_assignments - Pin Assignment and General Purpose I/O      *
**********************************************************************/
static void
init_pin_assignments( void )
{
    /* Pin assignments for port ADDR 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_APDDR = 0;
    MCF_GPIO_PAR_AD = 0;

    /* Pin assignments for ports DATAH and DATAL 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_DATAH = 0;
    MCF_GPIO_PDDR_DATAL = 0;

    /* Pin assignments for port BUSCTL 
       Pin /OE        : External bus output enable, /OE 
       Pin /TA        : External bus transfer acknowledge, /TA 
       Pin /TEA       : External bus transfer error acknowledge, /TEA 
       Pin R/W        : External bus read/write indication, R/W 
       Pin TSIZ1      : External bus transfer size TSIZ1 or DMA acknowledge /DACK1 
       Pin TSIZ0      : External bus transfer size TSIZ0 or DMA acknowledge /DACK0 
       Pin /TS        : External bus transfer start, /TS 
       Pin /TIP       : External bus transfer in progess, /TIP 
     */
    MCF_GPIO_PDDR_BUSCTL = 0;
    MCF_GPIO_PAR_BUSCTL = MCF_GPIO_PAR_BUSCTL_PAR_OE |
        MCF_GPIO_PAR_BUSCTL_PAR_TA |
        MCF_GPIO_PAR_BUSCTL_PAR_TEA( 0x3 ) |
        MCF_GPIO_PAR_BUSCTL_PAR_RWB |
        MCF_GPIO_PAR_BUSCTL_PAR_TSIZ1 |
        MCF_GPIO_PAR_BUSCTL_PAR_TSIZ0 |
        MCF_GPIO_PAR_BUSCTL_PAR_TS( 0x3 ) |
        MCF_GPIO_PAR_BUSCTL_PAR_TIP( 0x3 );

    /* Pin assignments for port BS 
       Pin /BS3       : External byte strobe /BS3 
       Pin /BS2       : External byte strobe /BS2 
       Pin /BS1       : External byte strobe /BS1 
       Pin /BS0       : External byte strobe /BS0 
     */
    MCF_GPIO_PDDR_BS = 0;
    MCF_GPIO_PAR_BS = MCF_GPIO_PAR_BS_PAR_BS3 |
        MCF_GPIO_PAR_BS_PAR_BS2 |
        MCF_GPIO_PAR_BS_PAR_BS1 | MCF_GPIO_PAR_BS_PAR_BS0;

    /* Pin assignments for port CS 
       Pin /CS7       : Chip select /CS7 
       Pin /CS6       : Chip select /CS6 
       Pin /CS5       : Chip select /CS5 
       Pin /CS4       : Chip select /CS4 
       Pin /CS3       : Chip select /CS3 
       Pin /CS2       : Chip select /CS2 
       Pin /CS1       : Chip select /CS1 
     */
    MCF_GPIO_PDDR_CS = 0;
    MCF_GPIO_PAR_CS = MCF_GPIO_PAR_CS_PAR_CS7 |
        MCF_GPIO_PAR_CS_PAR_CS6 |
        MCF_GPIO_PAR_CS_PAR_CS5 |
        MCF_GPIO_PAR_CS_PAR_CS4 |
        MCF_GPIO_PAR_CS_PAR_CS3 |
        MCF_GPIO_PAR_CS_PAR_CS2 | MCF_GPIO_PAR_CS_PAR_CS1;

    /* Pin assignments for port SDRAM 
       Pin /SD_WE     : SDRAM controller /SD_WE 
       Pin /SD_SCAS   : SDRAM controller /SD_SCAS 
       Pin /SD_SRAS   : SDRAM controller /SD_SRAS 
       Pin /SD_SCKE   : SDRAM controller /SD_SCKE 
       Pin /SD_CS1    : SDRAM controller /SD_CS1 
       Pin /SD_CS0    : SDRAM controller /SD_CS0 
     */
    MCF_GPIO_PDDR_SDRAM = 0;
    MCF_GPIO_PAR_SDRAM = MCF_GPIO_PAR_SDRAM_PAR_SDWE |
        MCF_GPIO_PAR_SDRAM_PAR_SCAS |
        MCF_GPIO_PAR_SDRAM_PAR_SRAS |
        MCF_GPIO_PAR_SDRAM_PAR_SCKE |
        MCF_GPIO_PAR_SDRAM_PAR_SDCS1 | MCF_GPIO_PAR_SDRAM_PAR_SDCS0;

    /* Pin assignments for port FECI2C 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_FECI2C = 0;
    MCF_GPIO_PAR_FECI2C = 0;

    /* Pin assignments for port UARTL 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_UARTL = 0;
    MCF_GPIO_PAR_UART = 0;

    /* Pin assignments for port UARTH 
       Pin U2TXD      : GPIO input 
       Pin U2RXD      : GPIO input 
       Pin /IRQ2      : Interrupt request /IRQ2 or GPIO 
     */
    MCF_GPIO_PDDR_UARTH = 0;

    /* Pin assignments for port QSPI 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_QSPI = 0;
    MCF_GPIO_PAR_QSPI = 0;

    /* Pin assignments for port TIMER 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_TIMER = 0;
    MCF_GPIO_PAR_TIMER = 0;

    /* Pin assignments for port ETPU 
       Pins are all GPIO inputs 
     */
    MCF_GPIO_PDDR_ETPU = 0;
    MCF_GPIO_PAR_ETPU = 0;
}