1 void ComDataSendStr(const unsigned char str[]) 2 { 3 unsigned char i = 0; 4 for (i = 0; str[i] != ' '; i++) 5 { 6 TXREG = str[i]; 7 TXEN = 1; 8 while(!TRMT); 9 TXEN = 0; 10 } 11 }
1 void ComDataSendChar(unsigned char cDbuf) 2 { 3 TXREG = cDbuf; 4 TXEN = 1; 5 while(!TRMT); 6 TXEN = 0; 7 }
PIC单片机中发送字符和字符串的函数功能。
1 void ComDataSendNumInt_3bits(unsigned int str) 2 { 3 unsigned char cDbuf[3]; 4 unsigned char i; 5 6 cDbuf[0] = str / 100 + 0x30; 7 cDbuf[1] = str % 100 / 10 + 0x30; 8 cDbuf[2] = str % 10 + 0x30; 9 10 for (i = 0; i < 3; i++) 11 { 12 TXREG = cDbuf[i]; 13 TXEN = 1; 14 while(!TRMT); 15 TXEN = 0; 16 } 17 }
上面是发送时整形数字的函数
1 void ComDataSendNumfloat(unsigned int str) 2 { 3 unsigned char cDbuf[4]; 4 unsigned char i; 5 6 cDbuf[0] = str / 100 + 0x30; 7 cDbuf[1] = '.'; 8 cDbuf[2] = str % 100 / 10 + 0x30; 9 cDbuf[3] = str % 10 + 0x30; 10 11 for (i = 0; i < 4; i++) 12 { 13 TXREG = cDbuf[i]; 14 TXEN = 1; 15 while(!TRMT); 16 TXEN = 0; 17 } 18 }
应该是扩大100倍后的数字，发送浮点函数功能。
下面的函数是采样并滤波的函数。去max、min后求平均
1 unsigned int sample_10bit(unsigned char channel_register) 2 { 3 unsigned char i=0; 4 int sample_variable[10],min=0,max=0,SUM=0; 5 while(i<10) 6 { 7 ADCON0=channel_register; 8 ADFM=1; 9 delay30us(); 10 ADGO=1; 11 while(ADGO==1) 12 { 13 ; 14 } 15 sample_variable[i]=((ADRESH&0x03)<<8)+ADRESL; 16 if(i==0) 17 { 18 min=sample_variable[0]; 19 max=sample_variable[0]; 20 SUM=sample_variable[0]; 21 } 22 else 23 { 24 min=(sample_variable[i]<min ?sample_variable[i]:min); 25 max=(sample_variable[i]>max ?sample_variable[i]:max); 26 SUM=SUM+sample_variable[i]; 27 } 28 ADFM=0; 29 i++; 30 } 31 return (SUM-max-min)/8; 32 }
以上是pic16F787中用到的函数，特此整理。