CCS5 中printf输出窗口 如何设置

在程序中用printf可能会出很多问题，建议你使用BIOS的LOG_printf：

Problems with printf()

• It runs often for 1000s of cycles in order to do the string formatting (e.g. displaying an integer as ascii text).
• It causes CCS to do a "silent halt". That is, there is a breakpoint that gets hit during calls to printf. CCS responds by reading out the printed message and then starting the DSP running again.

These issues coupled together typically cause severe problems with real-time performance, but you can easily avoid these issues by using LOG_printf instead.

添加flush()函数在printf之后，就能看到输出了。

Depending on which version of SYS/BIOS you are using, you may not see the System_printf's come out on the console due to how System is configured. If you want to have System_printf output go to the same place as printf, add the following three lines to your .cfg file and re-build:

var System = xdc.useModule('xdc.runtime.System');
var SysStd = xdc.useModule('xdc.runtime.SysStd');
System.SupportProxy = SysStd;

If you don't do this, the output will go to a circular buffer in memory. You can examine that buffer using the ROV tool (use the menu: Tools->ROV while in the debugger).