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9 years, 7 months ago.
How to pass serial from main to other moduels?
Thanks for your code. I have ported C libs from AVRlib to mbed C++ for VT100 and cmdline for terminal menu user interaction. The main has a serial called pc, then passed it as parameters to VT100 and cmdline module.
I didn't use serial constructor in VT100 and cmdline because I don't want to contruct same uart three times. But I have some compilation errors.
vt100.h
class vt100{
public:
void vt100();
void Init(Serial pc);
void ClearScreen(void);
......
private:
Serial ser;
}
vt100.cpp
#include "vt100.h"
void vt100::Init(Serial x){
ser = x;
ser.printf("\x1B\x63");
}
...
But I found an error:
Quote:
mbed\Serial.h(47): error: #330-D: "mbed::Stream &mbed::Stream::operator=(const mbed::Stream &)" (declared at line 60 of "mbed\Stream.h") is inaccessible
I also tried to pass parameters to vt100::vt100(), just like passing PinName to serial/spi modules.
vt100.h, revised
class vt100{
public:
void vt100(Serial pc);
void ClearScreen(void);
......
private:
Serial ser;
}
vt100.cpp, revised
#include "vt100.h"
vt100::vt100(Serial x){
ser = x;
ser.printf("\x1B\x63");
}
Then I got this:
Quote:
vt100\vt100.cpp(5): error: #291: no default constructor exists for class "mbed::Serial"
mbed\Serial.h(47): error: #330-D: "mbed::Stream &mbed::Stream::operator=(const mbed::Stream &)" (declared at line 60 of "mbed\Stream.h") is inaccessible
error: #291 points to vt100:vt100() in vt100.cpp. Therefore it still asks for constructor for a parametered serial.
I am not very good at C++. Anything must be wrong, But I have no idea how to fix it.
Would you please help me out? So far I have to use all vt100 C functions in mbed C++ project, which is a bad practice.
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