K40 FOR IAR

WayneChung — Thu, 22 Sep 2011 15:17:57 GMT

I use the IAR ARM sample example,

when i set "GPIOC_PSOR = 1" ,

the Register will set to "GPIOC_PDORC = 1" .

Re: K40 FOR IAR

mjbcswitzerland — Fri, 23 Sep 2011 06:43:43 GMT

This sounds to be normal operation. GPIOC_PSOR is the Set Output Register, causing the bit with '1' to be set to the output; the register itself always reads 0.

Since the write set the bit in the output, this is seen in the GPIOC_PDORC register.

By contrast, if you write "GPIOC_PCOR = 1" it will then clear the bit in the GPIOC_PDORC register.

Furthermore "GPIOC_PTOR = 1" will toggle the bit.

Regards

Mark

topic K40 FOR IAR in Kinetis Microcontrollers

K40 FOR IAR

Re: K40 FOR IAR