I'm testing CLA task, the floating values in the task are very strange.
following source, the result must be test1=1, test2=2 and test3=3, but test1=1.1.
it can say that test1 is not increasing with step 0.1 (maybe 0.0999999).
I don't know the reason.
plz let me know it.
============ Program =================================
// Cla1Task1 is triggered by EPWM1_INT
#pragma DATA_SECTION(test1,"Cla1ToCpuMsgRAM");
volatile float test1;
#pragma DATA_SECTION(test2,"Cla1ToCpuMsgRAM");
volatile float test2;
#pragma DATA_SECTION(test3,"Cla1ToCpuMsgRAM");
volatile float test3;
interrupt void Cla1Task1 ( void )
{
_mdebugstop();
if (test1 < 1)
{
test1 = test1 + 0.1;
test2 = test2 + 0.2;
test3 = test1 + test2;
}
}
// first, test1, test2, test3 initialization
interrupt void Cla1Task8 ( void )
{
test1 = 0;
test2 = 0;
test3 = 0;
}
========== result ==================================
Expression Type Value Address
test1 float 1.1 0x00001480@Data
test2 float 2.2 0x00001482@Data
test3 float 3.299999 0x00001484@Data
