C2DGraphics and serial ports

[KyleCardoza]

I feel as if I'm missing something blindingly obvious: when I try to make a little program to show a square on the screen and output some text on the flashy serial monitor, no matter what I try, it just sits at a black screen.

If I remove the serial and interrupt devices from the code, then it draws to the screen no problem.

So I guess my question is, if I want to use C2DGraphics, am I just out of luck for IRQs and debug serial output, or am I missing something when I study the source of the sample programs?

[rsta2]

You have to add a member of CDeviceNameService to CKernel before CSerialDevice, because the serial device wants to create a device name ttyS1 in the service. An instance of CInterruptSystem is not necessary any more in CKernel since Circle 46, because it is already created in sysinit, but it does also not disturb (for backwards compatibility).

[KyleCardoza]

Thank you very much. I have added that, and on its own it works fine, but when I then add in C2DGraphics, it freezes before displaying anything -- it works fine without C2DGraphics, happily sending strings over the serial monitor.

[KyleCardoza]

Never mind. I figured it out -- I forgot the logger. As you've said, no program of any complexity will work without the logger. Don't know what I was thinking. Anyway, thanks, love your work.

[rsta2]

It's good, that it works now. Thanks for appreciating Circle!