EMTime/libopencm3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

stm32: rcc: extract osc_bypass functions

Browse Source 
rcc_osc_bypass_enable and rcc_osc_bypass_disable have been copy/pasted
around for the last time!  There's a compile bit to check for L0/L1, but
otherwise this is just code duplication for no gain.
This commit is contained in:
Karl Palsson
2017-05-01 22:56:28 +00:00
parent 2547bf66d9
commit 29c712326f
20 changed files with 62 additions and 382 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
lib/stm32/f0/rcc.c
View File

@@ -323,66 +323,6 @@ void rcc_css_disable(void)
RCC_CR &= ~RCC_CR_CSSON;
}
/*---------------------------------------------------------------------------*/
/** @brief RCC Enable Bypass.
*
* Enable an external clock to bypass the internal clock (high speed and low
* speed clocks only). The external clock must be enabled (see @ref rcc_osc_on)
* and the internal clock must be disabled (see @ref rcc_osc_off) for this to
* have effect.
*
* @param[in] osc enum ::osc_t. Oscillator ID. Only HSE and LSE have effect.
*/
void rcc_osc_bypass_enable(enum rcc_osc osc)
{
switch (osc) {
case RCC_HSE:
RCC_CR |= RCC_CR_HSEBYP;
break;
case RCC_LSE:
RCC_BDCR |= RCC_BDCR_LSEBYP;
break;
case RCC_HSI48:
case RCC_HSI14:
case RCC_HSI:
case RCC_LSI:
case RCC_PLL:
/* Do nothing */
break;
}
}
/*---------------------------------------------------------------------------*/
/** @brief RCC Disable Bypass.
*
* Re-enable the internal clock (high speed and low speed clocks only). The
* internal clock must be disabled (see @ref rcc_osc_off) for this to have
* effect.
*
*
* @param[in] osc enum ::osc_t. Oscillator ID. Only HSE and LSE have effect.
*/
void rcc_osc_bypass_disable(enum rcc_osc osc)
{
switch (osc) {
case RCC_HSE:
RCC_CR &= ~RCC_CR_HSEBYP;
break;
case RCC_LSE:
RCC_BDCR &= ~RCC_BDCR_LSEBYP;
break;
case RCC_HSI48:
case RCC_HSI14:
case RCC_PLL:
case RCC_HSI:
case RCC_LSI:
/* Do nothing */
break;
}
}
/*---------------------------------------------------------------------------*/
/** @brief RCC Set the Source for the System Clock.
*