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AT45DB161D芯片的读写驱动程序,有多款程序,包括有51,AVR,MSP430等,需要的朋友可以拿去看看,很有帮助.

void SPI_Init(void) {
	WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  	P1OUT = 0x000;                            // Setup P1.0 for LED output
  	P1DIR |= 0x001;
  	P3SEL = 0x00E;                            // Setup P3 for SPI mode
  	P3OUT = 0x020;                            // Setup P3.4 for Scope trigger and
  	P3DIR |= 0x031;                           // P3.5 for slave initialization P3.0 for CS
  	U0CTL = CHAR + SYNC + MM + SWRST;         // 8-bit, SPI, Master
  	U0TCTL = CKPL + SSEL1 + STC;              // Polarity, SMCLK, 3-wire
  	U0BR0 = 0x002;                            // SPICLK = SMCLK/2
  	U0BR1 = 0x000;
  	U0MCTL = 0x000;			    //波特率 = BRCLK / (UBR + (M7 + M6 + ... + M0) / 8),M7-M0为U0MCTL寄存器的相应位
  	ME1 = USPIE0;                             // Module enable
  	U0CTL &= ~SWRST;                          // SPI enable
  	IE1 |= URXIE0;                            // Recieve interrupt enable
  	_EINT();                                  // Enable interrupts
}