int main(void)
{
//================= 系统初始化 =================
SysCtlClockSet(SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ); //配置系统时钟为80MHz
SysCtlPeripheralEnable(SYSCTL_PERIPH_EPI0); //使能EPI模块
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);//使能GPIO模块
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOH);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOJ);
//================== 配置GPIO为EPI=================
GPIOPinConfigure(GPIO_PH3_EPI0S0);
GPIOPinConfigure(GPIO_PH2_EPI0S1);
GPIOPinConfigure(GPIO_PC4_EPI0S2);
GPIOPinConfigure(GPIO_PC5_EPI0S3);
GPIOPinConfigure(GPIO_PC6_EPI0S4);
GPIOPinConfigure(GPIO_PC7_EPI0S5);
GPIOPinConfigure(GPIO_PH0_EPI0S6);
GPIOPinConfigure(GPIO_PH1_EPI0S7);
GPIOPinConfigure(GPIO_PE0_EPI0S8);
GPIOPinConfigure(GPIO_PE1_EPI0S9);
GPIOPinConfigure(GPIO_PH4_EPI0S10);
GPIOPinConfigure(GPIO_PH5_EPI0S11);
GPIOPinConfigure(GPIO_PF4_EPI0S12);
GPIOPinConfigure(GPIO_PG0_EPI0S13);
GPIOPinConfigure(GPIO_PG1_EPI0S14);
GPIOPinConfigure(GPIO_PF5_EPI0S15);
GPIOPinConfigure(GPIO_PJ0_EPI0S16);
GPIOPinConfigure(GPIO_PJ1_EPI0S17);
GPIOPinConfigure(GPIO_PJ2_EPI0S18);
GPIOPinConfigure(GPIO_PJ3_EPI0S19);
GPIOPinConfigure(GPIO_PJ4_EPI0S28);
GPIOPinConfigure(GPIO_PJ5_EPI0S29);
GPIOPinConfigure(GPIO_PJ6_EPI0S30);
GPIOPinConfigure(GPIO_PG7_EPI0S31);
GPIOPinTypeEPI(GPIO_PORTC_BASE, EPI_PORTC_PINS);
GPIOPinTypeEPI(GPIO_PORTE_BASE, EPI_PORTE_PINS);
GPIOPinTypeEPI(GPIO_PORTF_BASE, EPI_PORTF_PINS);
GPIOPinTypeEPI(GPIO_PORTG_BASE, EPI_PORTG_PINS);
GPIOPinTypeEPI(GPIO_PORTH_BASE, EPI_PORTH_PINS);
GPIOPinTypeEPI(GPIO_PORTJ_BASE, EPI_PORTJ_PINS);
//================== EPI配置 ===================
EPIModeSet(EPI0_BASE, EPI_MODE_HB16); //Flash + SRAM使用HB8模式
EPIDividerSet(EPI0_BASE, 1); //波特率等于系统时钟/2
EPIConfigHB16Set(EPI0_BASE,
EPI_HB16_MODE_ADMUX | //使用ADMUX子模式，地址/数据总线复用子模式
EPI_HB16_WRWAIT_0 | //无写等待态
EPI_HB16_RDWAIT_0 | //无读等待态
EPI_HB16_WORD_ACCESS| //使用字访问模式
EPI_HB16_CSCFG_ALE , //使用ALE配置，EPI0S30用作ALE，EPI0S26、27则由访问的地址确定
0); //无使用FIFO,无需设置
EPIAddressMapSet(EPI0_BASE,
EPI_ADDR_RAM_SIZE_16MB | //设置片外SRAM空间为16MB
EPI_ADDR_RAM_BASE_6); //设置自外SRAM的映射空间基地址为0x60000000
//==============================================
while(HWREG(EPI0_BASE + EPI_O_STAT) & EPI_STAT_INITSEQ)
{
}
/*
HWREGH(0x60000000)=0x0000;
HWREGH(0x60000001)=0x1111;
HWREGH(0x60000002)=0x2222;
HWREGH(0x60000003)=0x3333;
HWREGH(0x60000004)=0x4444;
HWREGH(0x60000005)=0x5555;
*/
//HWREGH(0x60000002)=0x2222;
/*
a=HWREGH(0x60000000);
b=HWREGH(0x60000001);
c=HWREGH(0x60000002);
d=HWREGH(0x60000003);
e=HWREGH(0x60000004);
f=HWREGH(0x60000005);
*/
c=HWREGH(0x60000004);
while(1)
{
}
}
读出的数据不对!!!!!!
