S5PV210 timer

TCFG0, R/W, Address = 0xE250_0000

Timer Input Clock Frequency = PCLK / ( {prescaler value + 1} ) / {divider value}

TCFG1, R/W, Address = 0xE250_0004

CON, R/W, Address = 0xE250_0008

TCNTB4, R/W, Address = 0xE250_003C

举例

#define TCFG0 (*(unsigned int*)0xE2500000)

#define TCFG1 (*(unsigned int*)0xE2500004)

#define CON (*(unsigned int*)0xE2500008)

#define TCNTB4 (*(unsigned int*)0xE250003C)

#define TCNTO4 (*(unsigned int*)0xE2500040)

TCFG0 = 255 << 8;

TCFG1 = 4 << 16;

TCNTB4 = 16896; //66M/(255+1)/16

CON = (1 << 20 ) | (1 << 22) | (1 << 21); //更新一次

CON = (1 << 20 ) | (1 << 22) | (0 << 21);

while(1)

{

    if(TCNTO4 == 0) //监视

    {

        led = ~led;

    }

}

巴特西

S5PV210 timer

最新文章

热门文章