Part Number: TMS320F28377D
Dear all,
When customer used F2837xD QEP strobe position latch function to get the motor position, they found the QPOSSLAT will miss 1 count when direction change. In detail, for 1000 line encoder, the QPOSSLAT latched position counter during clockwise is 0xF9F, but when the direction change to anti-clockwise, the first QPOSSLAT latched position counter is 0xF9E, this will made strobe position changed 0.1 degree.
Here is the register:
And here is the signal:
I see in the TRM the Figure 16-11 shows the strobe position latch when different direction should be the same, please help on this , thanks.
Sam
