10 years, 6 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.

class vt100{
public:
  void vt100();
  void Init(Serial pc);
  void ClearScreen(void);
  ......
private:
  Serial ser;
}

#include "vt100.h"
void vt100::Init(Serial x){
  ser = x;
  ser.printf("\x1B\x63");
}

...

But I found an error:

I also tried to pass parameters to vt100::vt100(), just like passing PinName to serial/spi modules.

class vt100{
public:
  void vt100(Serial pc);
  void ClearScreen(void);
  ......
private:
  Serial ser;
}

#include "vt100.h"

vt100::vt100(Serial x){
  ser = x;
  ser.printf("\x1B\x63");
}

Then I got this:

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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Last updated: 23 Nov 2010

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Simon Ford / Terminal