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Re: Demo board 可以動 麵包版不能動
#2
初級會員
初級會員


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PICDEM 2 PLUS USER'S GUIDE 裡面有它自己的線路圖, 您確定使用麵包板的接線與零件及周邊都和 PICDEM 2 相仿嗎? 查查您的硬體(麵包板)會比較實際...

發表於: 2005/11/4 17:08
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Demo board 可以動 麵包版不能動
#1
新會員
新會員


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各位大哥,小弟最近在玩PIC18f452
用的語言是CCS 目的是測試ADC的功能
為什麼在microchip 的 PICDEM 2 PLUS DEMO BOARD可以執行
換成接到麵包版就不能執行呢
謹附上麵包版的接線圖和CCS的程式
請各位大哥指導!!

#case
#include <18f452.h>
#include <stdlib.h>
#fuses xt,nowdt,put,noprotect

//set_tris_A (0x1F);
//set_tris_B (0xFB);

void main()
{


// Choose +5V as reference voltage
setup_adc_ports( RA0_ANALOG );
setup_adc( ADC_CLOCK_INTERNAL );

// Choose ANO as ADC channel
set_adc_channel( 0 );


for (;;)
{
int value, min, max, p1, p2, p3;
max = 255;
p3 = 200;
p2 = 150;
p1 = 100;
min = 0 ;

value = read_adc();
switch (value)
{
case 255:
output_bit( PIN_B3, 1 );
output_bit( PIN_B2, 0 );
output_bit( PIN_B1, 0 );
output_bit( PIN_B0, 0 );
case 200:
output_bit( PIN_B2, 1 );
output_bit( PIN_B3, 0 );
output_bit( PIN_B0, 0 );
output_bit( PIN_B1, 0 );


case 150:
output_bit( PIN_B1, 1 );
output_bit( PIN_B2, 0 );
output_bit( PIN_B3, 0 );
output_bit( PIN_B0, 0 );

case 100:
output_bit( PIN_B0, 1 );
output_bit( PIN_B1, 0 );
output_bit( PIN_B2, 0 );
output_bit( PIN_B3, 0 );



case 0:
output_bit( PIN_B0, 0 );
output_bit( PIN_B1, 0 );
output_bit( PIN_B2, 0 );
output_bit( PIN_B3, 0 );
}
}

}




發表於: 2005/11/1 5:33
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