Posted on April 12, 2013 at 16:51... because there is a bug in the fw library.
There is a bug in STM8l FWLIB V1.01
The bug is file stm8l15x_beep.c
void BEEP_LSClockToTIMConnectCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the BEEP peripheral */
BEEP->CSR2 |= BEEP_CSR1_MSR;
}
else
{
/* Disable the BEEP peripheral */
BEEP->CSR2 &= (uint8_t)(~BEEP_CSR1_MSR);
}
}
bit BEEP_CSR1_MSR is in BEEP->CSR1 not in BEEP->CSR2
Making this change allows the RCOSC calibration app note firmware to work properly
#hsi-cal
