Part Number: TMS320F280039C
In the qep moudle, if QPOSCMP register is activer register ,who is the shadow register, if QPOSCMP register is shadow register ,who is the active register. I see only one register in the guidence book.
Part Number: TMS320F280039C
In the qep moudle, if QPOSCMP register is activer register ,who is the shadow register, if QPOSCMP register is shadow register ,who is the active register. I see only one register in the guidence book.
The position-compare (QPOSCMP) register is shadowed and shadow mode can be enabled or disabled using the QPOSCTL[PSSHDW] bit. If the shadow mode is not enabled, the CPU writes directly to the active position compare register.
For details, please read TMS320F280039C TRM as below.
TMS320F28003x Real-Time Microcontrollers Technical Reference Manual (Rev. C)