//一個SPWM帶有死區的程序 用STC8A8K64S4A12單片機編寫的SPWM
//介紹了一種高性能微機控制的單相 SPWM 變頻調速系統 24000000L 增強型PWM
// SPWM信號經低通濾波后可變換為正弦波，窄帶范圍內的方波經低通濾波后可變換為相應頻率的正弦波
//主時鐘選擇24MHZ, PWM時鐘選擇1T, PWM周期2400, 死區24個時鐘(1us).正弦波表用200點.
//輸出正弦波頻率 = 24000000/ 2400 / 200 = 50 HZ. PWMC = 2400;
//PWM4輸出選擇P2.4 // PWM3輸出選擇P2.3, 無中斷
//程序能用，如果不是你想要的頻率，那就 自己改一下數據 記得同時要替換數組里面的值
#define MAIN_Fosc 24000000L //定義主時鐘
#include "STC8.H"
#include "intrins.h" // _nop這個操作數用，ADC的。
unsigned int code T_SinTable[]={ //50HZ 115幅值， 調制度10
1220, 1256, 1292, 1328, 1364, 1400, 1435, 1471, 1506, 1541,
1575, 1610, 1643, 1677, 1710, 1742, 1774, 1805, 1836, 1866,
1896, 1925, 1953, 1981, 2007, 2033, 2058, 2083, 2106, 2129,
2150, 2171, 2191, 2210, 2228, 2245, 2261, 2275, 2289, 2302,
2314, 2324, 2334, 2342, 2350, 2356, 2361, 2365, 2368, 2369,
2370, 2369, 2368, 2365, 2361, 2356, 2350, 2342, 2334, 2324,
2314, 2302, 2289, 2275, 2261, 2245, 2228, 2210, 2191, 2171,
2150, 2129, 2106, 2083, 2058, 2033, 2007, 1981, 1953, 1925,
1896, 1866, 1836, 1805, 1774, 1742, 1710, 1677, 1643, 1610,
1575, 1541, 1506, 1471, 1435, 1400, 1364, 1328, 1292, 1256,
1220, 1184, 1148, 1112, 1076, 1040, 1005, 969, 934, 899,
865, 830, 797, 763, 730, 698, 666, 635, 604, 574,
544, 515, 487, 459, 433, 407, 382, 357, 334, 311,
290, 269, 249, 230, 212, 195, 179, 165, 151, 138,
126, 116, 106, 98, 90, 84, 79, 75, 72, 71,
70, 71, 72, 75, 79, 84, 90, 98, 106, 116,
126, 138, 151, 165, 179, 195, 212, 230, 249, 269,
290, 311, 334, 357, 382, 407, 433, 459, 487, 515,
544, 574, 604, 635, 666, 698, 730, 763, 797, 830,
865, 899, 934, 969, 1005, 1040, 1076, 1112, 1148, 1184,
};
unsigned int code T_SinTable2[]={ //50HZ 105幅值， 調制度10
1220,1252,1285,1318,1351,1384,1416,1449,1481,1512,
1544,1575,1606,1637,1667,1696,1725,1754,1782,1810,
1837,1863,1889,1914,1938,1962,1985,2007,2029,2049,
2069,2088,2106,2123,2140,2155,2170,2183,2196,2207,
2218,2228,2237,2244,2251,2257,2261,2265,2267,2269,
2270,2269,2267,2265,2261,2257,2251,2244,2237,2228,
2218,2207,2196,2183,2170,2155,2140,2123,2106,2088,
2069,2049,2029,2007,1985,1962,1938,1914,1889,1863,
1837,1810,1782,1754,1725,1696,1667,1637,1606,1575,
1544,1512,1481,1449,1416,1384,1351,1318,1285,1252,
1220,1187,1154,1121,1088,1055,1023,990,958,927,
895,864,833,802,772,743,714,685,657,629,
602,576,550,525,501,477,454,432,410,390,
370,351,333,316,299,284,269,256,243,232,
221,211,202,195,188,182,178,174,172,170,
170,170,172,174,178,182,188,195,202,211,
221,232,243,256,269,284,299,316,333,351,
370,390,410,432,454,477,501,525,550,576,
602,629,657,685,714,743,772,802,833,864,
895,927,958,990,1023,1055,1088,1121,1154,1187
};
unsigned int code T_SinTable3[]={ //50HZ 95幅值， 調制度10
1220,1249,1279,1309,1339,1368,1398,1427,1456,1485,
1513,1541,1569,1597,1624,1651,1677,1703,1729,1753,
1778,1802,1825,1848,1870,1891,1912,1932,1951,1970,
1988,2005,2022,2037,2052,2066,2079,2091,2103,2113,
2123,2132,2140,2147,2153,2158,2162,2165,2168,2169,
2170,2169,2168,2165,2162,2158,2153,2147,2140,2132,
2123,2113,2103,2091,2079,2066,2052,2037,2022,2005,
1988,1970,1951,1932,1912,1891,1870,1848,1825,1802,
1778,1753,1729,1703,1677,1651,1624,1597,1569,1541,
1513,1485,1456,1427,1398,1368,1339,1309,1279,1249,
1220,1190,1160,1130,1100,1071,1041,1012,983,954,
926,898,870,842,815,788,762,736,710,686,
661,637,614,591,569,548,527,507,488,469,
451,434,417,402,387,373,360,348,336,326,
316,307,299,292,286,281,277,274,271,270,
270,270,271,274,277,281,286,292,299,307,
316,326,336,348,360,373,387,402,417,434,
451,469,488,507,527,548,569,591,614,637,
661,686,710,736,762,788,815,842,870,898,
926,954,983,1012,1041,1071,1100,1130,1160,1190 };
unsigned int code T_SinTable4[]={ //50HZ 85幅值， 調制度10
1220,1246,1273,1299,1326,1352,1379,1405,1431,1457,
1482,1507,1532,1557,1581,1605,1629,1652,1675,1697,
1719,1740,1761,1782,1801,1821,1839,1857,1874,1891,
1907,1923,1937,1951,1964,1977,1989,2000,2010,2019,
2028,2036,2043,2049,2054,2059,2063,2066,2068,2069,
2070,2069,2068,2066,2063,2059,2054,2049,2043,2036,
2028,2019,2010,2000,1989,1977,1964,1951,1937,1923,
1907,1891,1874,1857,1839,1821,1801,1782,1761,1740,
1719,1697,1675,1652,1629,1605,1581,1557,1532,1507,
1482,1457,1431,1405,1379,1352,1326,1299,1273,1246,
1220,1193,1166,1140,1113,1087,1060,1034,1008,982,
957,932,907,882,858,834,810,787,764,742,
720,699,678,657,638,618,600,582,565,548,
532,516,502,488,475,462,450,439,429,420,
411,403,396,390,385,380,376,373,371,370,
370,370,371,373,376,380,385,390,396,403,
411,420,429,439,450,462,475,488,502,516,
532,548,565,582,600,618,638,657,678,699,
720,742,764,787,810,834,858,882,907,932,
957,982,1008,1034,1060,1087,1113,1140,1166,1193
};
unsigned int code T_SinTable5[]={ //50HZ 75幅值， 調制度10
1220,1243,1267,1290,1313,1337,1360,1383,1406,1429,
1451,1474,1496,1517,1539,1560,1581,1601,1621,1641,
1660,1679,1698,1715,1733,1750,1766,1782,1797,1812,
1826,1840,1853,1865,1877,1888,1898,1908,1917,1925,
1933,1940,1946,1951,1956,1960,1964,1966,1968,1969,
1970,1969,1968,1966,1964,1960,1956,1951,1946,1940,
1933,1925,1917,1908,1898,1888,1877,1865,1853,1840,
1826,1812,1797,1782,1766,1750,1733,1715,1698,1679,
1660,1641,1621,1601,1581,1560,1539,1517,1496,1474,
1451,1429,1406,1383,1360,1337,1313,1290,1267,1243,
1220,1196,1172,1149,1126,1102,1079,1056,1033,1010,
988,965,943,922,900,879,858,838,818,798,
779,760,741,724,706,689,673,657,642,627,
613,599,586,574,562,551,541,531,522,514,
506,499,493,488,483,479,475,473,471,470,
470,470,471,473,475,479,483,488,493,499,
506,514,522,531,541,551,562,574,586,599,
613,627,642,657,673,689,706,724,741,760,
779,798,818,838,858,879,900,922,943,965,
988,1010,1033,1056,1079,1102,1126,1149,1172,1196
};
unsigned int code T_SinTable6[]={ //50HZ 65幅值， 調制度10
1220,1240,1260,1281,1301,1321,1341,1361,1381,1401,
1420,1440,1459,1478,1496,1515,1533,1550,1568,1585,
1602,1618,1634,1649,1664,1679,1693,1707,1720,1733,
1745,1757,1768,1779,1789,1799,1808,1816,1824,1831,
1838,1844,1849,1854,1858,1861,1864,1867,1868,1869,
1870,1869,1868,1867,1864,1861,1858,1854,1849,1844,
1838,1831,1824,1816,1808,1799,1789,1779,1768,1757,
1745,1733,1720,1707,1693,1679,1664,1649,1634,1618,
1602,1585,1568,1550,1533,1515,1496,1478,1459,1440,
1420,1401,1381,1361,1341,1321,1301,1281,1260,1240,
1220,1199,1179,1158,1138,1118,1098,1078,1058,1038,
1019,999,980,961,943,924,906,889,871,854,
837,821,805,790,775,760,746,732,719,706,
694,682,671,660,650,640,631,623,615,608,
601,595,590,585,581,578,575,572,571,570,
570,570,571,572,575,578,581,585,590,595,
601,608,615,623,631,640,650,660,671,682,
694,706,719,732,746,760,775,790,805,821,
837,854,871,889,906,924,943,961,980,999,
1019,1038,1058,1078,1098,1118,1138,1158,1179,1199
};
unsigned int code T_SinTable7[]={ //50HZ 55幅值， 調制度10
1220,1237,1254,1271,1288,1306,1323,1339,1356,1373,
1389,1406,1422,1438,1454,1469,1484,1499,1514,1529,
1543,1557,1570,1583,1596,1608,1620,1632,1643,1654,
1664,1674,1684,1693,1701,1710,1717,1724,1731,1737,
1743,1748,1752,1756,1760,1763,1765,1767,1768,1769,
1770,1769,1768,1767,1765,1763,1760,1756,1752,1748,
1743,1737,1731,1724,1717,1710,1701,1693,1684,1674,
1664,1654,1643,1632,1620,1608,1596,1583,1570,1557,
1543,1529,1514,1499,1484,1469,1454,1438,1422,1406,
1389,1373,1356,1339,1323,1306,1288,1271,1254,1237,
1220,1202,1185,1168,1151,1133,1116,1100,1083,1066,
1050,1033,1017,1001,985,970,955,940,925,910,
896,882,869,856,843,831,819,807,796,785,
775,765,755,746,738,729,722,715,708,702,
696,691,687,683,679,676,674,672,671,670,
670,670,671,672,674,676,679,683,687,691,
696,702,708,715,722,729,738,746,755,765,
775,785,796,807,819,831,843,856,869,882,
896,910,925,940,955,970,985,1001,1017,1033,
1050,1066,1083,1100,1116,1133,1151,1168,1185,1202
};
unsigned int code T_SinTable8[]={ //50HZ 45幅值， 調制度10
1220,1234,1248,1262,1276,1290,1304,1318,1331,1345,
1359,1372,1385,1398,1411,1424,1436,1449,1461,1472,
1484,1495,1506,1517,1528,1538,1548,1557,1566,1575,
1584,1592,1599,1607,1614,1620,1627,1632,1638,1643,
1647,1652,1655,1659,1662,1664,1666,1668,1669,1669,
1670,1669,1669,1668,1666,1664,1662,1659,1655,1652,
1647,1643,1638,1632,1627,1620,1614,1607,1599,1592,
1584,1575,1566,1557,1548,1538,1528,1517,1506,1495,
1484,1472,1461,1449,1436,1424,1411,1398,1385,1372,
1359,1345,1331,1318,1304,1290,1276,1262,1248,1234,
1220,1205,1191,1177,1163,1149,1135,1121,1108,1094,
1080,1067,1054,1041,1028,1015,1003,990,978,967,
955,944,933,922,911,901,891,882,873,864,
855,847,840,832,825,819,812,807,801,796,
792,787,784,780,777,775,773,771,770,770,
770,770,770,771,773,775,777,780,784,787,
792,796,801,807,812,819,825,832,840,847,
855,864,873,882,891,901,911,922,933,944,
955,967,978,990,1003,1015,1028,1041,1054,1067,
1080,1094,1108,1121,1135,1149,1163,1177,1191,1205
};
unsigned int code T_SinT[]={ //50HZ 35幅值， 調制度10 //第一次啟動用， 以后當臨時數組。
1220,1230,1241,1252,1263,1274,1285,1296,1307,1317,
1328,1338,1348,1359,1369,1378,1388,1398,1407,1416,
1425,1434,1443,1451,1459,1467,1475,1482,1489,1496,
1503,1509,1515,1521,1526,1531,1536,1541,1545,1549,
1552,1556,1559,1561,1563,1565,1567,1568,1569,1569,
1570,1569,1569,1568,1567,1565,1563,1561,1559,1556,
1552,1549,1545,1541,1536,1531,1526,1521,1515,1509,
1503,1496,1489,1482,1475,1467,1459,1451,1443,1434,
1425,1416,1407,1398,1388,1378,1369,1359,1348,1338,
1328,1317,1307,1296,1285,1274,1263,1252,1241,1230,
1220,1209,1198,1187,1176,1165,1154,1143,1132,1122,
1111,1101,1091,1080,1070,1061,1051,1041,1032,1023,
1014,1005,996,988,980,972,964,957,950,943,
936,930,924,918,913,908,903,898,894,890,
887,883,880,878,876,874,873,872,871,871,
870,871,871,872,873,874,876,878,880,883,
887,890,894,898,903,908,913,918,924,930,
936,943,950,957,964,972,980,988,996,1005,
1014,1023,1032,1041,1051,1061,1070,1080,1091,1101,
1111,1122,1132,1143,1154,1165,1176,1187,1198,1209
};
#define PwmClk_1T 0
#define PwmClk_2T 1
#define PwmClk_3T 2
#define PwmClk_4T 3
#define PwmClk_5T 4
#define PwmClk_6T 5
#define PwmClk_7T 6
#define PwmClk_8T 7
#define PwmClk_9T 8
#define PwmClk_10T 9
#define PwmClk_11T 10
#define PwmClk_12T 11
#define PwmClk_13T 12
#define PwmClk_14T 13
#define PwmClk_15T 14
#define PwmClk_16T 15
#define PwmClk_T2 16
#define EAXSFR() P_SW2 |= 0x80 /* MOVX A,@DPTR/MOVX @DPTR,A指令的操作對象為擴展SFR(XSFR) */
#define EAXRAM() P_SW2 &= ~0x80 /* MOVX A,@DPTR/MOVX @DPTR,A指令的操作對象為擴展RAM(XRAM) */
#define PWM_Enable() PWMCR |= 0x80 /* 使能PWM波形發生器，PWM計數器開始計數 */
#define PWM_Disable() PWMCR &= ~0x80 /* 關閉PWM波形發生器 */
#define P2n_standard(bitn) P2M1 &= ~(bitn), P2M0 &= ~(bitn)
#define P2n_push_pull(bitn) P2M1 &= ~(bitn), P2M0 |= (bitn)
#define P2n_pure_input(bitn) P2M1 |= (bitn), P2M0 &= ~(bitn)
#define P2n_open_drain(bitn) P2M1 |= (bitn), P2M0 |= (bitn)
#define PWM_VECTOR 22
#define PWM_DeadZone 24 /* 死區時鐘數, 6 ~ 24之間 24個時鐘是 1us */
typedef unsigned char u8;
typedef unsigned int u16;
typedef unsigned long u32;
sbit LED_OUT =P3^3;
#define Port P1 //設置CPU和模塊的通訊接口
u8 PWM_Index; //SPWM查表索引
u8 dt4 ; // 4秒內或 10次過流啟動。
u16 dtt;//開機標志
//sfr P2M0 = 0x96; //P2口引腳模式寄存器
//sfr P1M0 = 0x92; //P1口引腳模式寄存器
//sfr ADCCFG = 0xDE;// ADC 配置寄存器 DEH - - RESFMT - SPEED[3:0] xx0x,0000 RESFMT：ADC 轉換結果格式控制位，默認左對齊。
//sfr ADC_CONTR = 0xBC;//A/D 轉換控制寄存器 ADC_POWER ADC_START ADC_FLAG - ADC_CHS[3:0] ADC_POWER,SPEED1,SPEED0,ADC_FLAG,ADC_START,CHS2,CHS1,CHS0;0000,0000
//sfr ADC_RES = 0xBD;//A/D 轉換結果高8位 ADCV.9 ADCV.8 ADCV.7 ADCV.6 ADCV.5 ADCV.4 ADCV.3 ADCV.2;0000,0000
//sfr ADC_RESL = 0xBE;//A/D 轉換結果低2位 ADCV.1 ADCV.0;0000,0000
//sfr ADC_CHS[3:0] = 0x07 ; //第 x.7通道
#define ADC_POWER 0x80 //ADC電源控制位
#define ADC_FLAG 0x20 //ADC完成標志位
#define ADC_START 0x40 //ADC啟動控制位 #define ADC_START 0x08
#define ADC_SPEED0 0x02 //ADC轉換速度，一次轉換需要96個時鐘
#define ADC_SPEED1 0x05 //ADC轉換速度，一次轉換需要192個時鐘
#define ADC_SPEED2 0x0b //ADC轉換速度，一次轉換需要364個時鐘
#define ADC_SPEED3 0x0f //ADC轉換速度，一次轉換需要512個時鐘
#define N 8 //ADC采樣使用遞推平均濾波算法，采樣次數
/******************************
函數說明：初始化ADC寄存器，設置P1.7為ADC輸入功能
入口參數：無
出口參數：無
******************************/
void Init_ADC(void)
{ P1M0=0x00;
P1M1=0x80;// P1ASF = 0x80; //打開P1.7口的ADC功能 (1000 0000 ）
ADC_RES = 0;
ADC_RESL= 0; //清掉ADC轉換結果寄存器
ADC_CONTR = ADC_POWER ; //使能A/D供電，
ADCCFG= ADC_SPEED3; //設置轉換速度90T 不設置速度， 采用PWM 計數器觸發采樣點。硬件自動觸發 A/D 轉換
//sfr ADCCFG = 0xDE;// ADC 配置寄存器 DEH - - RESFMT - SPEED[3:0] xx0x,0000 RESFMT：ADC 轉換結果格式控制位，默認左對齊。
//sfr ADC_CONTR = 0xBC;//A/D 轉換控制寄存器 ADC_POWER ADC_START ADC_FLAG - ADC_CHS[3:0] ADC_POWER,SPEED1,SPEED0,ADC_FLAG,ADC_START,CHS2,CHS1,CHS0;0000,0000
}
/******************************
函數說明：查詢方式讀取ADC轉換結果
入口參數：ch ADC采樣通道
出口參數：int ADC_RES ADC轉換結果
******************************/
unsigned int Get_ADC_Result(unsigned char ch)
{
unsigned int result; //u16
result =0 ;
ADC_RES = 0;
ADC_RESL= 0; //清掉ADC轉換結果寄存器
ADCCFG= ADC_SPEED3;
ADC_CONTR =ADC_POWER|ADC_START|ch;//配置ADC，設置轉換通道，啟動轉換 /A/D 轉換控制寄存器 ADC_POWER ADC_START ADC_FLAG - ADC_CHS[3:0]
_nop_(); _nop_();
_nop_(); _nop_(); //等待設置ADC_POWER完畢
while (!(ADC_CONTR & ADC_FLAG));//讀取轉換完畢標志位ADC_FLAG
ADC_CONTR &= ~ADC_FLAG; //清除ADC_FLAG標志位
result = ADC_RES<<4|ADC_RESL; //讀取12位轉換結果保存到result
return result; //返回ADC轉換結果12位
}
/******************************/
/******************************/
void Delay1000ms() //@24.000MHz
{
unsigned char data i, j, k;
_nop_();
_nop_();
i = 92;
j = 50;
k = 238;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
//========================================================================
// 函數: void PWM_config(void)
// 描述: PWM配置函數。
// 參數: none.
// 返回: none.
// 版本: VER1.0
// 日期:
// 備注:
//========================================================================
void PWM_config(void)
{
EAXSFR(); // 訪問XFR
PWM3T1 = 65; // 第一個翻轉計數
PWM3T2=1220; // 第二個翻轉計數
PWM3CR =0; // PWM3輸出選擇P2.3, 無中斷 pwm切換 有端口介紹（固定幾個口）
PWM3CR |= 0x80; // 相應PWM通道的端口為PWM輸出口，受PWM波形發生器控制 ENC30
PWM3CR &= ~0x40; // 設置PWM輸出端口的初始電平為0 C3INI
P23 = 0;
P2n_push_pull(1<<3); //IO初始化, 上電時為高阻
PWM4T1= 65-PWM_DeadZone; // 第一個翻轉計數低字節
PWM4T2 = (1220+PWM_DeadZone); // 第二個翻轉計數高字節
PWM4CR = 0; // PWM4輸出選擇P2.4, 無中斷
PWM4CR |= 0x80; // 相應PWM通道的端口為PWM輸出口，受PWM波形發生器控制 ENC40
// PWMCFG &= ~0x04; // 設置PWM輸出端口的初始電平為0 C4INI
PWM4CR |= 0x40; // 設置PWM輸出端口的初始電平為1
P24 = 1;
P2n_push_pull(1<<4); //IO初始化, 上電時為高阻
PWMC = 2400; // PWM計數器的高字節
P26 = 0; //MOS管下臂
P27 = 0; //MOS管下臂
PWMCKS = PwmClk_1T; // 時鐘源: PwmClk_1T,PwmClk_2T, ... PwmClk_16T, PwmClk_Timer2
IP2H=PPWMFDH; //pwm異常檢測寄存器高位1， 為第3級。 （ 可以設置最高級4，加上 IP2=PPWMFD；) //設置PWM異常檢測優先級3
EAXRAM(); // 恢復訪問XRAM
////////////////////////////////
PWMFDCR = ENFD | FDIO; //PWM失效中斷控制, FLTFLIO=1發生 WM 外部異常時，PWM 的輸出口立即被置為高阻模式??
//FDIO==1 ， 為P35，做為中斷異常檢測口；void PWMFD_Routine(void) interrupt 23;
PWMCR |= ENPWM; // 使能PWM波形發生器，PWM計數器開始計數
// PWMCR &= ~ECBI; // 禁止PWM計數器歸零中斷
PWMCR |= ECBI; // 允許PWM計數器歸零中斷
PWMCFG=0x20 ; //ETADC 1：PWM 與 ADC 相關聯。允許在 PWM 周期中某個時間點觸發 A/D 轉換。使用 TADCPH 和 TADCPL進行設置。
// 在 ETADC=1 且 ADC_POWER=1 時，{TADCPH,TADCPL}組成一個 15 位的寄存器。在 PWM 的計數周
//期中，當 PWM 的內部計數值與{TADCPH,TADCPL}的值相等時，硬件自動觸發 A/D 轉換
TADCPL=0x80;
TADCPH =0x01; //2400 pwm總計數2400 ； 600點 1800就是2個上下最大計數值。 取600。
}
//**********************************************/
/**********************************************/
void main(void)
{ u16 hvv,haa ,j; //高壓交流電壓， 交流電流；
u16 mvv; //直流320V 母線電壓
u8 g;
dtt=0; //開機啟動標志0
PWM_Index = 0;
////////////////////////////////////////////////////////////////////////////////////////
LED_OUT =1; //單片機開機指示
// P35=0; //MOS管 S過流電阻 , 過流==1 P35異常檢測口
P01=0; //互感線圈過流
P02=0;
P03=0; //不過流，溫度高
P04=0; //溫度高的，LED接口，指示用；
P12=0; //交流電壓反饋 2.5V ==230v 輸出有效值(最大值）ADC2 通道 ，這里用TL432的外部基準2.5v
P17=0; //交流 電流反饋 2.5v ==8A 電流 (最大值） adc7 通道
P14=0; // 直流母線電壓反饋 端口電阻分壓到2.5V (最大值） =350V
P1M0 &= ~0x94; P1M1 |= 0x94; // //打開P17,P14 ,P12口的ADC功能(adc是高阻輸入模式)
Init_ADC();
PWM_config(); //初始化PWM 50hZ
EA = 1; //允許全局中斷
PWM_Enable() ;
while (1)
{ hvv= Get_ADC_Result(2); //將ADC P12電壓調整，輸出脈沖。讓電流 在合理范圍。
haa= Get_ADC_Result(7); //將ADC P17電壓調整，輸出脈沖。讓電流 在合理范圍。
mvv= Get_ADC_Result(4); //將ADC P14電壓調整，輸出脈沖。讓電流 在合理范圍。
mvv=2.5*mvv/4069; //外部基準為2.5v, 所以P14口，直流母線真是電壓值 （母線電壓有電阻分壓到2.5V，經過LM358運放 給P14.)
//這個真實值 到底mvv單位是V？？？ 還是mv ?????????????? 如果直流母線電壓大于385V，也LED提示。
if(mvv<2.25||mvv>2.75) //2.4v還是2400mv實際測試決定一下。。。。。。
{ P02=1; } //P02接LED指示350v母線電壓偏低，或者沒有電壓，或者電壓大于385V 可以加入關閉PWM代碼。
else { P02=0; } ;
P0M0 &= ~0x08; P0M1 |= 0x08; // P03設置為 高阻輸入模式。開機記得接下拉電阻。
if( P03==1) //溫度高，停機或延時幾十秒，啟動。 由熱敏電阻，檢測后經LM358,送3v高電平到 p03口。
{ PWM_Disable() ; //關閉 PWM
PWM_Index=0;
P26=0; P27=0; //關閉2個 P26 P27方波口。
for( g=1;g++;g<100)
{Delay1000ms();
P04= ~P04; //LED指示閃，表示溫度高； 冷卻中；
} //冷卻100秒再開機；
PWM_config();
dtt=0; //開機標志
PWM_Enable() ;
}
if(dt4==1) //異常處理完后，再開機 主要是過流異常。
{
//其他需要處理異常的語句，在此加入。
dtt=0; //二次降壓開機模式 ,一樣標志為0
PWM_config(); //初始化PWM 50hZ
PWM_Enable() ;
}
}
}
/********************* PWM中斷函數************************/
void PWM_int (void) interrupt PWM_VECTOR
{
u16 j, k;
u8 SW2_tmp;
if(PWMCFG & CBIF) //PWM計數器歸零中斷標志 PWMCFG
{
PWMCFG &= ~CBIF; //清除中斷標志
SW2_tmp = P_SW2; //保存SW2設置
EAXSFR(); //訪問XFR
////////////////////////////////////////////////////////////////////////////////////////
if(dt4==1||dtt<200)//PWM異常處理 過流，完成后 。嘗試降壓啟動,數組用 ,開機啟動999也是從此開
{ dtt++; //開機標志999, dt4==1是過流，
j=T_SinTable8[PWM_Index]; // 第一次，最低電壓啟動 8級 或沖擊電流大后，重新開機。
dt4++;
}
if(dtt>=200&&dtt<400) //200點后，換波形 // 第2個波形，低電壓 7 級
{ j=T_SinTable7[PWM_Index];
dtt++;
}
if(dtt>=400&&dtt<600) // 第3個波形，低電壓啟動6 級
{ j=T_SinTable6[PWM_Index];
dtt++;
}
if(dtt>=600&&dtt<800) // 第4，低電壓啟動5 級
{ j=T_SinTable5[PWM_Index];
dtt++ ;
}
if(dtt>=800&&dtt<1000) // 第5波，低電壓啟動4 級
{ j=T_SinTable4[PWM_Index];
dtt++ ;
}
if(dtt>=1200&&dtt<1400) // 第6波，低電壓啟動3 級
{ j=T_SinTable3[PWM_Index];
dtt++ ;
}
if(dtt>=1400&&dtt<1600) // 第7波，低電壓啟動2 級
{ j=T_SinTable2[PWM_Index];
dtt++;
}
if(dtt>=1800) // 第8波，低電壓啟動1 級
{ j=T_SinTable[PWM_Index];
}
///////////////////////////////////////////////////////////////////////////
k = j ;
PWM3T2H = (u8)(j >> 8); //第二個翻轉計數高字節
PWM3T2L = (u8)j; //第二個翻轉計數低字節
j += PWM_DeadZone; //死區
// 指向PWM4
PWM4T2H = (u8)(j >> 8); //第二個翻轉計數高字節
PWM4T2L = (u8)j; //第二個翻轉計數低字節
P_SW2 = SW2_tmp; //恢復SW2設置
if(++PWM_Index >= 200)
PWM_Index = 0;
}
///////////////////////////
if(PWM_Index<=99 ) /////////// 每100個點 2個下管 輪流對應 40或45或 50hz方波 p2.6 p.27初值， 要與 上管， 的初值 相反。
{ P26=0;
_nop_();
_nop_();
P27=1;
}
if(PWM_Index>99 )
{ P26=1;
_nop_();
_nop_();
P27=0;
}
}
/********************* PWM異常中斷函數************************/
void PWMFD_Routine(void) interrupt 23
{ if( PWMFDCR &=FDIF) //FDIF 中斷請求位
PWMFDCR &=~FDIF ;//清0 PWM異常檢測寄存器的 。
PWM_Disable() ; //關閉 PWM
P26=0; P27=0; //關閉2個 P26 P27方波口。
dtt=0; // 再從0起。
PWM_Index=0; // 正弦波表，再從0起。
dt4=1; //異常計數 開始
P41=1;
Delay1000ms(); //異常后延時1秒。
P41=0; //P41可以接LED燈。
}
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