Avr
鍗曠墖鏈轰腑浣跨敤
modbus
鍗忚鐨勬柟娉?/p>
鏈夊垢鍋氫簡涓」鐩紝鍏朵腑浣跨敤鍒颁簡鍗曠墖鏈哄拰涓婁綅鏈洪�氳鐨勭▼搴忥紝涓婁綅鏈虹敤缁勬�佸疄鐜板姛鑳斤紝
鎺㈢储浜嗕簺鏂规硶锛屽啓鍑烘潵鍜屽ぇ瀹跺垎浜竴涓嬶紝杩欎簺鐭ヨ瘑鏈笉鏄粈涔堢瀵嗭紝鏈汉鍙傝�冧簡璁稿璧勬枡锛?/p>
鑷繁鏁村悎浜嗕竴涓嬨�傛瘡绉嶇▼搴忛兘鏄畻娉曞鏍凤紝鏈�缁堝姛鑳藉疄鐜板氨琛屻�?/p>
澶у鍋氬崟鐗囨満涓插彛閫氳鏃舵槸涓嶆槸鎬绘兂鏈変竴绉嶄互涓嶅彉搴斾竾鍙樼殑鎬濇兂锛?/p>
灏辨槸鍦ㄥ簳灞傚崟鐗囨満纭?/p>
浠跺拰杞欢涓嶅彉鐨勬儏鍐典笅锛?/p>
鍘婚�傚簲浠讳綍涓婁綅鏈鸿蒋浠剁郴缁燂紝
褰撶劧鍙互瀹炵幇锛?/p>
杩欏氨闇�瑕佺敤鍒版爣鍑嗙殑
閫氳鍗忚浜嗭紝浠ヤ笅鎴戝氨鍜屽ぇ瀹跺垎浜竴涓嬫垜鍋氱殑
modbus
鍗忚锛堝崟鐗囨満绔級锛屽鏋滀笂浣嶆満鐢ㄧ粍
鎬佽蒋浠剁殑鎯呭喌涓嬶紝浣犵洿鎺ヤ娇鐢ㄩ�氳鍗忚灏辫瀹冧細鑷姩鍜屽崟鐗囨満閫氳銆?/p>
澶у鍦ㄨ璁″崟鐗囨満绋嬪簭鏃堕鍏堣瀹氫箟濂芥暟鎹粨鏋勶紝
鍏堟瀯鎯充竴涓嬮渶瑕佸摢浜涢噰闆嗘暟鎹紝
涓?/p>
浣嶆満闇�瑕佹煡璇粈涔堟暟鎹紝
鏁版嵁鐨勭被鍨嬪拰鍏ㄥ眬涓庡惁锛?/p>
杩愮畻鐨勭簿搴︾瓑绛夈�?/p>
鐒跺悗鎶婁笂浣嶆満闇�瑕侀噰闆?/p>
鐨勬暟鎹敤涓�涓暟缁勭鐞嗚捣鏉ワ紝渚夸簬
modbus
鍗忚鐨勫疄鐜般�傚崟鐗囨満閲屼覆鍙ｉ�氳绋嬪簭灏介噺鐢ㄦ煡璇?/p>
鍙戦�侊紝
涓柇鎺ユ敹鐨勬柟寮忥紝
瑕佸畾涔夊彂閫佺紦鍐插尯鍜屾帴鏀剁紦鍐插尯锛屼互渚挎彁楂樼郴缁熸晥鐜囥�備互涓嬬▼搴忕敤
gcc
瀹炵幇锛屽崟鐗囨満鐢?/p>
avr
鍗曠墖鏈恒�?/p>
ISR(USART0_RX_vect)//
涓插彛
0
鎺ユ敹涓柇鏈嶅姟绋嬪簭
{
volatile unsigned char status,data;
cli();//
鍏充腑鏂?/p>
status = UCSR0A;//ucsr0a
璧嬪�肩姸鎬佹爣蹇?/p>
data = UDR0;//
鎺ユ敹鐨勬暟鎹斁鍏?/p>
data
鍙橀噺
usart0_rx_complete=0;//
鎺ユ敹瀹屾垚鏍囧織璧嬪�?/p>
0
锛岃繕娌℃湁瀹屾垚
if ((status & (FRAMING_ERROR0 | PARITY_ERROR0 | DATA_OVERRUN0))==0)//
濡傛灉鍚?/p>
鏍囧織浣嶆纭垯锛屾墽琛屼互涓?/p>
{
usart0_rx_count++;//
鎺ユ敹缂撳啿鍖烘寚閽堝姞涓�
switch (usart0_rx_count)
{
case 1:
if(data==add//
绗竴涓瓧鑺傛槸鍦板潃锛岃鍏ュ唴閮ㄦ湰鏈哄湴鍧�杩涜姣旇緝
{
usart0_rx_buf[0]=data;
TIMSK0=0x01;//
鍚姩瀹氭椂鍣?/p>
0
锛岃繘琛岃秴鏃舵帶鍒?/p>
}
else