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我試圖從滑塊發送一個值作爲套接字通信中的字符串到儀器。目前,我已經能夠在滑塊上找到唯一的資源更新標籤,但滑塊的值不在其他地方使用。理想情況下,我想在發送頻率命令與代爾的值使用下面的代碼在我的視圖控制器和替換值,如1000,而不是硬編碼千到方法調用:滑塊值iOS
-(IBAction)Sine {
//[myNetwork sendCommand:@"*CLS\n"];
//[myNetwork sendCommand:@"*RST\n"];
[myNetwork sendCommand:@"SOURCE1:FUNCTION SIN\n"];
[myNetwork sendCommand:@"SOURCE1:FREQUENCY 1000\n"];
[myNetwork sendCommand:@"SOURCE1:VOLT:UNIT VPP\n"];
[myNetwork sendCommand:@"SOURCE1:VOLT 2\n"];
[myNetwork sendCommand:@"SOURCE1:VOLT:OFFSET 0\n"];
[myNetwork sendCommand:@"OUTPUT1:LOAD 50\n"];
[myNetwork sendCommand:@"OUTPUT1 ON\n"];
[myNetwork sendCommand:@"OUTPUT2 ON\n"];
}
下面是對於sendCommand方法定義():
//sends command to the instrument and reuturns true if successful
-(BOOL)sendCommand:(NSString *)command {
char *com = [command UTF8String];
int comLength = strlen(com);
//send the string to the server
if (send(sockNum, com, comLength, 0) != comLength) {
return FALSE;
}
return TRUE;
}
這裏是原型.h文件:
- (BOOL)sendCommand:(NSString *)command; //send command to instr