Please HELP. STM8L+DAC

[giniyazovrr]

Posted on January 05, 2011 at 18:19

Please HELP. STM8L+DAC

[lowpowermcu]

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]

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]

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