老 姚 / Mbed OS modbusServer2

modbus for modular2_dio10

Diff: modbus/modbus.cpp

Revision:
1:8fcbafe2ca98
Parent:
0:998a68b8defc
--- a/modbus/modbus.cpp	Tue Sep 17 01:59:40 2019 +0000
+++ b/modbus/modbus.cpp	Sat Sep 28 02:25:51 2019 +0000
@@ -177,8 +177,12 @@
      resultCRC =  calculateCRC16(rbuf,index);  
      sbuf[index++]=(resultCRC>>8)&0xff;
      sbuf[index++]=resultCRC &0xff;
+      dir=1;
+    wait_ms(2);
    for (i=0;i<index;i++)
       rs485.putc(sbuf[i]) ;
+        wait_ms(2);
+    dir=0;
       return true;
      }       
 unsigned int  Modbus::calculateCRC16( uint8_t *puchMsg,unsigned int  usDataLen)