這是程序相信有多人有了我可是研究了很一段時(shí)間新手在成長(zhǎng)！呵呵

1、這是程序，相信有多人有了，我可是研究了很一段時(shí)間，新手在成長(zhǎng)！呵呵/-/ defines wdt smclk interval for sensor measurementsdefine wdt_meas_setting (div_smclk_512)/ defines wdt aclk interval for delay between measurement cyclesdefine wdt_delay_setting (div_aclk_512)/ sensor settingsdefine num_sen 5 / defines number of sensors/ definiti

2、ons for use with the wdt settingsdefine div_aclk_32768 (wdt_adly_1000) /* aclk/32768 */define div_aclk_8192 (wdt_adly_250) /* aclk/8192 */define div_aclk_512 (wdt_adly_16) /* aclk/512 */define div_aclk_64 (wdt_adly_1_9) /* aclk/64 */define div_smclk_32768 (wdt_mdly_32) /* smclk/32768 */define div_sm

3、clk_8192 (wdt_mdly_8) /* smclk/8192 */define div_smclk_512 (wdt_mdly_0_5) /* smclk/512 */define div_smclk_64 (wdt_mdly_0_064) /* smclk/64 */ define hardware inputs/outputsdefine ca_out (0x80) / comparator output on p1.7define ca_ref (0x02) / comparator reference on p1.1define ta_clk (0x01) / timer_a

4、 clock input on p1.0define s_1 (0x04) / sensor 1 p1.2define s_2 (0x08) / sensor 2 p1.3define s_3 (0x10) / sensor 3 p1.4define s_4 (0x20) / sensor 4 p1.5define s_5 (0x40) / sensor 4 p1.6define ca_1 (p2ca4) / mux settings: ca+ vref at ca1define ca_2 (p2ca2) / mux settings: sensor 1 at ca2define ca_3 (

5、p2ca1+p2ca2) / mux settings: sensor 2 at ca2define ca_4 (p2ca3) / mux settings: sensor 3 at ca2define ca_5 (p2ca1+p2ca3) / mux settings: sensor 4 at ca2define ca_6 (p2ca2+p2ca3) / mux settings: sensor 4 at ca2define 1 (0x40) / p2.6define led2 (0x80) / p2.7/ global variables for sensingunsigned int b

6、ase_cntnum_sen;unsigned int meas_cntnum_sen;int delta_cntnum_sen;unsigned char key_pressnum_sen;const unsigned int key_lvl_s5=4000,40,40,90,100;const unsigned int key_lvl_w5=4000,40,40,90,100;char key_pressed, key_loc;int cycles;unsigned int ledcount = 4000;unsigned int ledtimer = 10;unsigned int sw

7、judge = 0;/ system routinesvoid measure_count(void); / measures each capacitive sensorvoid pulse_led(void); / led gradient routine (for demo only)/ main functionvoid main(void)volatile unsigned int i,j;wdtctl = wdtpw + wdthold; / stop watchdog timerbcsctl1 = calbc1_1mhz; / set dco to 1, 8, 12 or 16m

8、hzdcoctl = caldco_1mhz;bcsctl1 |= diva_0; / aclk/(0:1,1:2,2:4,3:8)bcsctl3 |= lfxt1s_2; / lfxt1 = vloie1 |= wdtie; / enable wdt interruptp1out = 0x00; / p1.x = 0p1dir = 0xfe; / p1.0 = taclk inputp1sel |= 0x81; / p1.0 = taclk input, p1.7 = caoutp2out = 0x00; /p2sel = 0x00; / no xtalp2dir |= led1+led2;

9、p2out |= led2;p2sel |= led1;capd = ca_ref; / disable input buffer for ca+ ref inputcactl2 = ca_1; / ca1 = ca+ vref_eint(); / enable interruptsmeasure_count(); / establish an initial baseline capacitancefor (i = 0; i if(meas_cnt>1000)swjudge+;for (i = 0; i base_cnt = meas_cnt;for(i=15; i>0; i-)

10、 / repeat and average base measurement measure_count();for (j = 0; j base_cntj = (meas_cntj+base_cntj)/2;/ main loop starts herewhile (1)key_pressed = 0; / assume no keys are pressedmeasure_count(); / measure all sensorsfor (i = 0; i delta_cnt = base_cnt - meas_cnt; / calculate delta: c_change/ handle baseline measurment for a base c decreaseif (delta_cnt key_lvl_w) / determine if each key is pressed per a preset thresholdkey_press = 1; / specific key pressedkey_pressed = 1; / any key pressedp2out = led2;while(ledtimer-)ledcount -= 5;if(ledcount key_lvl_s) / determine if each k