The source code link does not work, here it is:
#include <eFlexPwm.h>
using namespace eFlex;
// My eFlexPWM submodules (Hardware > PWM2: SM[0], SM[2], SM[3])
SubModule Sm20 (4, 33);
SubModule Sm22 (6, 9);
SubModule Sm23 (36, 37);
// Tm2 simplifies access to the functions that concern all...