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

stm32: adc: Add functions to get and clear flags

Browse Source 
This includes adding documentation to the status flags.

Originally tracked at: https://github.com/libopencm3/libopencm3/pull/833

Modified to drop whitespace changes, and simply boolean return.
This commit is contained in:
Clara Casas
2017-10-01 02:05:33 +02:00
committed by Karl Palsson
parent 743513a4b1
commit 889b7de0d7
4 changed files with 63 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
lib/stm32/common/adc_common_v1.c
View File

@@ -748,6 +748,32 @@ void adc_disable_dma(uint32_t adc)
ADC_CR2(adc) &= ~ADC_CR2_DMA;
}
/*---------------------------------------------------------------------------*/
/** @brief Read a Status Flag.
@param[in] adc Unsigned int32. ADC register address base @ref adc_reg_base
@param[in] flag Unsigned int32. Status register flag @ref adc_sr_values.
@returns boolean: flag set.
*/
bool adc_get_flag(uint32_t adc, uint32_t flag)
{
return ADC_SR(adc) & flag;
}
/*---------------------------------------------------------------------------*/
/** @brief Clear a Status Flag.
@param[in] adc Unsigned int32. ADC register address base @ref adc_reg_base
@param[in] flag Unsigned int32. Status register flag @ref adc_sr_values.
*/
void adc_clear_flag(uint32_t adc, uint32_t flag)
{
/* All defined bits are 'r' or 'rc_w0' */
ADC_SR(adc) = ~flag;
}
/*---------------------------------------------------------------------------*/
/**@}*/