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jintaiyang °l(f¨¡)±íÓÚ 2024-11-15 07:41
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×÷Õß: jjy1039    •r(sh¨ª)ég: 2024-11-15 10:56
ÏÈ™z²éÒ»ÏÂmisoºÍmosiÊÇ·ñÕý´_£¬Èç¹û¶¼Õý´_£¬Ô‡Ô‡spi³õʼ»¯žé SPCTL = 0x50;
×÷Õß: ß_(d¨¢)ß_(d¨¢)„e    •r(sh¨ª)ég: 2025-4-1 23:12
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// ºê¶¨Áx
#define SPI_MODE_2 (0x08 | 0x04) // CPOL=1, CPHA=0
#define SPI_SPEED_DIV16 (0x02)   // SPR=10, •r(sh¨ª)犷Öîlžé16
#define SPI_ENABLE (0x40)        // SPEN=1
#define SPI_MASTER_MODE (0x10)   // MSRT=1

void init_SPI() // ³õʼ»¯Ó²SPI
{
    CS = 0; // ´òé_ƬßxÐÅÌ–(h¨¤o)£¬Ê¹ÄÜOLEDÆÁ
    P_SW1 |= 0x04; // P2.2-P2.5

    SPSTAT = 0xC0; // Çå¿Õ˜Ë(bi¨¡o)־λ
    SPCTL = (SPCTL & ~0x80) | SPI_ENABLE; // ʹÄÜSPI
    SPCTL = (SPCTL & ~0x10) | SPI_MASTER_MODE; // ÔO(sh¨¨)ÖÞéÖ÷™C(j¨©)ģʽ
    SPCTL = (SPCTL & ~0x18) | SPI_MODE_2; // ÔO(sh¨¨)ÖÕr(sh¨ª)犘OÐÔºÍÏàλ
    SPCTL = (SPCTL & ~0x03) | SPI_SPEED_DIV16; // ÔO(sh¨¨)ÖÕr(sh¨ª)犷Öîl
}

void OLED_WriteByte(unsigned char dat, unsigned char cmd)
{
    if (cmd != 0 && cmd != 1)
    {
        // …¢”µ(sh¨´)åe(cu¨°)Õ`ÌŽÀí
        return;
    }
    DC = cmd; // Œ‘ÃüÁî»ò?q¨±)‘”?sh¨´)“þ(j¨´)
    SPI_WriteByte(dat); // Ó²SPIŒ‘”µ(sh¨´)“þ(j¨´)
}

void SPI_WriteByte(unsigned char dat)
{
    SPSTAT = 0xC0; // Çå¿Õ˜Ë(bi¨¡o)־λ
    SPDAT = dat; // Œ‘È딵(sh¨´)“þ(j¨´)
    unsigned int timeout = 1000; // ÔO(sh¨¨)Öó¬•r(sh¨ª)Ó‹(j¨¬)”µ(sh¨´)
    while (!(SPSTAT & 0x80) && timeout--) // µÈ´ý‚÷Ý”Íê³É£¬Í¬•r(sh¨ª)™z²é³¬•r(sh¨ª)
    {
        // ¿ÕÑ­­h(hu¨¢n)
    }
    if (timeout == 0)
    {
        // ÌŽÀí³¬•r(sh¨ª)Çé›r£¬ÀýÈçÔO(sh¨¨)ÖÃåe(cu¨°)Õ`˜Ë(bi¨¡o)Ö¾»òÖØ†¢SPIÄ£‰K
    }
}
×÷Õß: keemee    •r(sh¨ª)ég: 2025-4-4 04:48
lkc8210 °l(f¨¡)±íÓÚ 2024-11-15 10:03
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