📄 or100_sw_else.c
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#include <myheadfile.h>
#define DISPLAY_FLASH_FREQ 200 //显示报警时的数码管闪烁频率
//LED显示字符表，控制LED显示不同字符
char code DISPLAY_TABLE[14] = {
0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff,0xc7,0x89,};
// 0 1 2 3 4 5 6 7 8 9 - (空) L H
// 接收光功率码表 0.1dBm
signed char code OP_POWdbm_TAB[220] = {
-96,-93,-91,-88,-86,-83,-81,-79,-77,-75,-73,-71,-70,-68,
-66,-65,-63,-62,-61,-59,-58,-57,-55,-54,-53,-52,-51,-50,
-49,-48,-47,-46,-45,-44,-43,-42,-41,-40,-39,-39,-38,-37,
-36,-35,-35,-34,-33,-33,-32,-31,-30,-30,-29,-28,-28,-27,
-27,-26,-25,-25,-24,-24,-23,-22,-22,-21,-21,-20,-20,-19,
-19,-18,-18,-17,-17,-16,-16,-15,-15,-14,-14,-13,-13,-12,
-12,-11,-11,-11,-10,-10, -9, -9, -9, -8, -8, -7, -7, -7,
-6, -6, -5, -5, -5, -4, -4, -3, -3, -3, -2, -2, -2, -1,
-1, -1, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3,
4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7,
8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11,
11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 14, 15,
15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18,
18, 18, 19, 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21,
21, 21, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 24, 24,
24, 24, 24, 25, 25, 25, 25, 25, 25, 25};
//0.1mW
unsigned char code OP_POWmw_TAB[220] = {
1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10,10,10,10,
10,10,10,10,10,10,10,10,10,10,10,11,11,11,
11,11,11,11,11,11,11,11,11,11,12,12,12,12,
12,12,12,12,12,12,12,13,13,13,13,13,13,13,
13,13,13,13,13,13,13,13,14,14,14,14,14,14,
14,14,14,14,14,14,14,15,15,15,15,15,15,15,
15,15,15,15,15,15,15,16,16,16,16,16,16,16,
16,16,17,17,17,17,17,17,17,17,17,17,17,17,
17,17,17,18,18,18,18,18,18,18};
/* 电平控制对应码表 */
//0.2dB步进
unsigned char code AttToPWM0[86] = {
1,19,28,36,40,45,53,57,63,68,73,79,82,88,92,96,102,107,
111,114,119,123,128,132,135,138,141,145,149,152,155,158,160,164,
166,169,172,175,177,179,181,183,185,187,188,190,191,193,195,196,
197,199,200,201,203,204,205,206,207,208,210,211,211,212,213,214,
215,216,217,218,219,
220,220,221,221,222,222,223,223,224,224,225,225,226,226,227
}; //初调
unsigned char code AttToPWM1[86] = {
87,90,94,88,95,96,87,93,89,96,92,88,96,92,93,90,92,87,86,
94,90,88,94,91,89,89,95,92,90,93,91,93,92,89,94,90,93,88,
94,93,91,90,89,87,92,89,94,93,90,93,96,89,92,95,88,91,93,
94,95,96,87,87,96,95,95,94,94,93,92,92,91,
90,99,90,99,90,99,90,99,90,99,90,99,90,99,90,
}; //细调
// 电平码表
unsigned char code RF_LEVEL_TABLE[22] = {
10,11,12,13,14,15,17,19,22,26,31,37,44,54,68,81,106,122,156,168,192
};
//实际电平 采样电压 采样值
//92 0.20 10
//93 0.21 11
//94 0.22 12
//95 0.25 13
//96 0.26 14
//97 0.30 15
//98 0.33 17
//99 0.38 19
//100 0.43 22
//101 0.51 26
//102 0.61 31
//103 0.74 37
//104 0.87 44
//105 1.06 54
//106 1.33 68
//107 1.60 81
//108 2.08 106
//109 2.40 122
//110 3.06 156
//111 3.3 168
//112 3.85 192
unsigned char code TEMPE_TABLE[20] ={11
};
//光功率检测
//输入：光功率的采样(平均后)值
//输出：10倍的光功率,有符号char型,单位为dBm
//功能描述：根据输入AD值，查表
signed char OpticalPowerDetect(unsigned char optical_power_sample)
{
signed char optical_power;
if(optical_power_sample<14) optical_power_sample =14;
if(optical_power_sample>233) optical_power_sample = 233;
optical_power = OP_POWdbm_TAB[optical_power_sample - 14];// 查表取值，optical_power_sample-14可以参见excel表格，optical_power_sample的值是0~255范围，以optical_power_sample的值为查表的下标
//然而码表OP_POWdbm_TAB[]中的首元素是excel表中optical_power_sample=14对应的值，该值对应OP_POWdbm_TAB[0]，所以真实值=OP_POWdbm_TAB[optical_power_sample - 14]
return(optical_power);
}
//同上，只不过输出为unsigned char单位为0.1mW
unsigned char OpPowDetect_mW(unsigned char optical_power_sample)
{
unsigned char optical_power;
if(optical_power_sample<14) optical_power_sample = 14;
if(optical_power_sample>233) optical_power_sample = 233;
optical_power = OP_POWmw_TAB[optical_power_sample - 14];
return(optical_power);
}
//光AGC
//输入：10倍的光功率,有符号char型
//输出：无
//功能描述：根据输入的光功率，查表，调用PWM控制硬件(电调衰减)
void OpticalAgc(signed char optical_power)
{
unsigned char optical_AGC_ATT;
unsigned int temp;
if(optical_power < -60) // 光功率小于-6.0dbm
optical_AGC_ATT = 0; // 电调衰减器不衰减
else if(optical_power > 25) // 如果光功率大于2.5dbm
optical_AGC_ATT = 67; // 电调衰减器最大衰减（6db）
else if(optical_power < 0) // 当接收光功率处于-6dbm~0dbm之间的时候
{
optical_power = -optical_power; //光功率增加1db,射频衰减2db，测试数据为0.2db一档，optical_power比实际数据放大10倍
optical_AGC_ATT = 60 - optical_power; //假设光功率为-4db，此时optical_power为-40，optical_AGC_ATT =60-40=20，由于是-6db起控，所以光功率增加了2db，射频应该衰减4db，optical_AGC_ATT =4/0.2=20
}
else // 在0-2.5dBm之间
optical_AGC_ATT = 60 + optical_power;
temp = CCAP1H*2 + AttToPWM1[optical_AGC_ATT] + 2; //写入PWM寄存器的值取平均
CCAP1H = temp/3;
temp = CCAP0H*2 + AttToPWM0[optical_AGC_ATT] + 2;
CCAP0H = temp/3;
}
//显示，仅以dBm显示光功率
//输入：10倍的光功率,有符号char型
//输出：无
//功能描述：根据输入的光功率，扫描三位数码管(以定时器0为计数器，大约30ms扫描一位)，首位为符号位(正值时不显示)，两位有效值
void Display(signed char optical_power)
{
unsigned char display_DIG; //显示数码管位号
unsigned char display_BUF[3]; //显示缓冲区
unsigned char display_val; //显示值
static bit display_flag=0; //显示标志，当=0时，数码管点亮，=1时数码管熄灭
static unsigned char display_count; //内部计数器,用于扫描三位数码管和闪烁
display_count++;
if(optical_power < -65) //光功率小于-6.5dbm
{
if((display_count%DISPLAY_FLASH_FREQ)>(DISPLAY_FLASH_FREQ/2))
display_flag = 1; //LED闪烁
else display_flag = 0;
display_BUF[0] = 12; // 显示 "L--"
display_BUF[1] = 10;
display_BUF[2] = 10;
}
else if(optical_power > 25) //光功率大于2.5dbm
{
if((display_count%DISPLAY_FLASH_FREQ)>(DISPLAY_FLASH_FREQ/2))
display_flag = 1; //LED闪烁
else display_flag = 0;
display_BUF[0] = 13; // 显示 "H--"
display_BUF[1] = 10;
display_BUF[2] = 10;
}
else if(optical_power < 0) //光功率介于-6.5与0dBm之间
{
display_flag = 0;
display_BUF[0] = 10; // 小于0则第一位显示“-”
display_BUF[1] = 0x80 - optical_power/10; //显示小数点
display_BUF[2] = (-optical_power)%10;
}
else //光功率介于0与2.5dBm之间
{
display_flag = 0;
display_BUF[0] = 11; // 大于0则第一位不显示
display_BUF[1] = 0x80 + optical_power/10; //显示小数点
display_BUF[2] = optical_power%10;
}
display_DIG = display_count % 3;
dig1 = (display_DIG==0) ? display_flag : 1; //轮换显示：如果当前计数为0则显示第1个数码管(或者闪烁)
dig2 = (display_DIG==1) ? display_flag : 1;
dig3 = (display_DIG==2) ? display_flag : 1;
display_val = display_BUF[display_DIG];
if(display_val >= 0x80) //判断是否大于0x80（前面要显示小数点的时候都加上了0x80）
{
led_dp = 0; //显示小数点
display_val &= 0x7f; //去掉加上的0x80
}
else led_dp = 1;
P2 = DISPLAY_TABLE[display_val]; //控制P2口的各个I/O口输出不同的电平以显示数值
}
//输出RF电平检测
//输入：输出RF电平的采样(平均后)值
//输出：RF电平,无符号char型,单位为dBu
//功能描述：查表结果与输入AD值做比较，只到找到对应的输出电平值
unsigned char RfLevel(unsigned char rf_level_sample)
{
signed char rf_level;
rf_level=0;
if (rf_level_sample > 200) //如果输出电平过高，最大就显示113dbuv
rf_level = 113;
else
{
if(rf_level_sample > 9) // 该电平码表中记录的采样值是从10开始的，也就是说采样值超过9就开始查表,小于9就rf_level=0
{
while (RF_LEVEL_TABLE[rf_level] < rf_level_sample) // 依次查表，从首元素开始查表
rf_level++; // 只要大于后一个元素的值，就取前一个元素的值
rf_level += 92; // 之前有赋值rf_level = 0 ，将rf_level当作查表的下标，与真实的rf_level值相差92
}
}
return(rf_level);
}
unsigned char GetTemperature(unsigned char tempe_sample)
{
unsigned char temperature;
temperature = TEMPE_TABLE[tempe_sample];
return(temperature);
}
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