adc0831（adc0831）.docVIP

adc0831（adc0831） ADC0832 C program //============================================ //2005-03-28... 2005-03-29 The C51 program source file for the //ADC0834 module //FileName=ADC083X.c //#include #include DELAY_S.h #include ADC083X.h A predefined global variable external / //******************************************************* / / number: //HD_ADC083X_S01 / / function: / / port initialization / / input: / / no / / output: / / no //******************************************************** Voidadc083x_init (void) { SET_ADC083X_CS; SET_ADC083X_DO; CLR_ADC083X_CLK; #ifTYPE_VAL=ADC0832.html, target=, _blank, title=, ADC0832, ADC0832 and PDF SET_ADC083X_DI; #endif #ifTYPE_VAL=ADC0834 SET_ADC083X_SARS; #endif } //******************************************************* / / number: //HD_ADC083X_S02 / / function: Read data byte / / AD / / input: The //chanel channel number and the single and double end settings are selected, whose values are limited by type values! The effective value is select / / take a minimum of 4 and 3 respectively, 2 bit or not used / / specific values found in the PDF document! / / output: Result bytes for //AD conversion //******************************************************** Ucharadc083x_do_one_change (ucharchanel) { Uchardataad_val; Uchardatai; / / initialization before conversion SET_ADC083X_CS; CLR_ADC083X_CLK; SET_ADC083X_DO; CLR_ADC083X_CS; //SARS pins are not necessary when not in use to save pin resources! #if (TYPE_VAL==ADC0838) //chanel_.3.2.1.0=0000 channel 0+_ channel 1-, =001 channel 2+_ channel 3- (double ended mode) //SGL/DIFODD/SIGNSELECTSELECT=0010 channel 4+_ channel 5-, =011 channel 6+_ channel 7- (double ended mode) //=0100 channel 0-_ channel 1+, =0101 channel 2-_ channel 3+ (double ended mode) //=0110 channel 4-_ channel 5+, =0111 channel 6-_ channel 7+ (double ended mode) //=1000 channel 0+, =1001 Channel 2+ (single ended mode) //=1010 channel 4+, =1011 Channel 6+ (single ended mode) //=1100 channel 1+, =1101 Channel 3+ (sing