Please HELP. STM8L+DAC

giniyazovrr · ‎2011-01-05

Posted on January 05, 2011 at 18:19

lowpowermcu · ‎2011-05-17

Posted on May 17, 2011 at 15:11

Hi rais,

I think you should enable the comparator peripheral.

So call

CLK_PeripheralClockConfig(CLK_Peripheral_COMP, ENABLE);

before

SYSCFG_RIIOSwitchConfig(RI_IOSwitch_15, ENABLE);

You can check it by looking at switch state in register if the value is well written or not.

Thanks to confirm this so we can share it.

MCU Lüfter

cspeckmann · ‎2011-06-01

Posted on June 01, 2011 at 10:42

Hi,

I had the same problem.

Turning on comparator clock really helps.

Unfortunately, I cannot find any hint why this is necessary in the STM8L documentation (RM0031).

Regards

Dilbert

lowpowermcu · ‎2011-06-01

Posted on June 01, 2011 at 11:21

Hi Dilbert,

That was my case too but I found the info in RM0031:

''The RI registers can be accessed only when the comparator clock is enabled by setting the PCKEN25 bit in the CLK_PCKENR2 register.''

MCU Lüfter