RE: Hercules Safety Microcontroller: Use C++ with HALCoGen C Projects

Jan Cumps — Sun, 19 Jan 2020 21:59:22 GMT

Just a warning: If you have Class instances declared as global variables, their constructors will be calld before the main() function.

This is normal, but for HALCoGen developers that are used to have the first line of custom code executed in the main() function, it could be a surprise.

If your classes use HALCoGen API calls (gio, spi, i2c, uart, ...) in their constructor and they are created as global variables (Arrduino / MBED style) ,

and you call gioInit, spiInit, i2cInit, sciInit, ... at the start of main (as usual), this will create issues.

In a C program this is normally not an issue, because declaring a global variable in C does nor invoke a code call.

Advice is to not perform any hardware manipulations in the constructors.

RE: Hercules Safety Microcontroller: Use C++ with HALCoGen C Projects

clem57 — Sat, 09 Nov 2019 22:08:21 GMT

I guess the following is true then:

This works for any C project where you want to start using C++ - if the toolset supports that.

Nice work [mention:acaf6a9338de4eef8f6717d5561ed01d:e9ed411860ed4f2ba0265705b8793d05]. You have come up with some real help.

Clem