VFP serial port communication is difficult for 9527. Maomao just showed his skill and was defeated by kiss

Net friend 9527 Sent for help , need VFP Control serial communication , Control hardware devices .
Front line fire response .

9527 The code is as follows

Immediately feedback that they can't do it , All that comes back is 0

9527 Send a document explaining , Hexadecimal format .

I was on my cell phone , Just tell him a couple , add & transformation .

send data =chr(&a1)+chr(&a2)+chr(&a3)

9527 I'm glad to say , There is a return .

Cats help others , Very happy .

I didn't expect that Foshan kiss Direct said , The code is a load of crap .
A word of a=0h010400000008F1CC Get it done .

Cat cat fiasco , Master and high master .

Cat cat is very happy , Learn another method , To learn hardware control, you must understand the binary of data , Hex conversion , The development of win32API Just need binary conversion . It's the same thing , That development web To understand the conversion of character encoding .

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