write usart register "US_RTOR" but no change

Discussion around products based on ARM Cortex-A5 core.

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leo.ni
Posts: 52
Joined: Mon Jun 06, 2016 4:20 am

write usart register "US_RTOR" but no change

Fri Nov 25, 2016 5:26 am

Hi,all! i want to set register "US_RTOR" of usart1 as this "usart->US_RTOR = US_RTOR_TO( 8 * 4);" but it's value always zero. The register is W/R. How to do this ?Thanks!
blue_z
Location: USA
Posts: 1508
Joined: Thu Apr 19, 2007 10:15 pm

Re: write usart register "US_RTOR" but no change

Mon Nov 28, 2016 9:45 pm

leo.ni wrote:it's [sic] value always zero. The register is W/R.
Peripheral registers that do not respond properly are usually an indication of a disabled peripheral, i.e. its peripheral clock has not been enabled in the Power Management Controller.

Regards

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