ExampleCode_RDC_AD2S1205.rar_AD2S1205_rdc_旋变

/******************************************************************************** Author : CAST (China Applications Support Team) Date : April, 2011 File name : ADuC7026Driver.c Description : Use the GPIO to simulate the SPI communication of AD2S1210 Hardware plateform : ADuC7026 and AD2S1205 ********************************************************************************/ #include "ADuC7026.h" #include "ADuC7026Driver.h" /* Function Pointers for Interrupts */ // Copied from irq_arm.c in Keil uV4, required tyVctHndlr IRQ = (tyVctHndlr)0x0; tyVctHndlr SWI = (tyVctHndlr)0x0; tyVctHndlr FIQ = (tyVctHndlr)0x0; tyVctHndlr UNDEF = (tyVctHndlr)0x0; tyVctHndlr PABORT = (tyVctHndlr)0x0; tyVctHndlr DABORT = (tyVctHndlr)0x0; void IRQ_Handler (void) __irq; void SWI_Handler (void) __irq; void FIQ_Handler (void) __irq; void Undef_Handler (void) __irq; void PAbt_Handler (void) __irq; void DAbt_Handler (void) __irq; void IRQ_Handler(void) __irq { if ( *IRQ !=0x00) { IRQ(); } } void FIQ_Handler(void) __irq { if ( *FIQ !=0x00) { FIQ(); } } void SWI_Handler(void) __irq { if ( *SWI !=0x00) { SWI(); } } void Undef_Handler(void)__irq { if ( *UNDEF !=0x00) { UNDEF(); } } void PAbt_Handler(void) __irq { if ( *PABORT !=0x00) { PABORT(); } } void DAbt_Handler(void) __irq { if ( *DABORT !=0x00) { DABORT(); } } /* Function Pointers for Interrupts */ // add the c file here void ADuC7026_Initiate(void) { //Clock Initial POWKEY1 = 0x01; //Start PLL Setting POWCON = 0x00; //Set PLL Active Mode With CD = 0 CPU CLOCK DIVIDER = 41.78MHz POWKEY2 = 0xF4; //Finish PLL Setting GP1CON = 0x011; //PIN set up for UART GP0DAT = GP0DAT & 0xDFFFFFFF; //Configure the P0.5 pin as input for DOUT GP4DAT = GP4DAT | 0xffff0000; //Configure the P4.x pin as output //UART Initial?那?Baud Rate = 9600 COMCON0 = 0x080; COMDIV0 = 0x088; COMDIV1 = 0x000; COMCON0 = 0x007; } void delay (int length) { while (length >0) length--; } void putchar(unsigned char ch)/* Write character to Serial Port */ { COMTX = ch; //COMTX is an 8-bit transmit register. while(!(0x020==(COMSTA0 & 0x020))) {;} } void SPIRead(unsigned char count, unsigned char *buf) { unsigned char i = 0; unsigned char j = 0; unsigned int iTemp = 0; unsigned char RotateData = 0; for(j=count; j>0; j--) { for(i=0; i<8; i++) { SET_SCLK(); RotateData <<= 1; //Rotate data delay(1); iTemp = GP0DAT; //Read SDO of AD2S CLR_SCLK(); if(0x00000020 == (iTemp & 0x00000020)) { RotateData |= 1; } delay(1); } *(buf + j - 1)= RotateData; } }