diff options
Diffstat (limited to 'libmaple/adc.h')
| -rw-r--r-- | libmaple/adc.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/libmaple/adc.h b/libmaple/adc.h index 776768e..fe1196f 100644 --- a/libmaple/adc.h +++ b/libmaple/adc.h @@ -25,7 +25,7 @@ /** * @file adc.h * - * @brief ADC prototypes and defines + * @brief Analog-to-Digital Conversion (ADC) routines. */ #ifndef _ADC_H_ @@ -43,7 +43,8 @@ extern "C"{ * * Need to up the sample time if otherwise... see datasheet */ -/* TODO: We'll only use ADC1 for now... */ +/* TODO: We'll only use ADC1 for now. See page 41 of the manual for + ADC2 and ADC3's real addresses. */ #define ADC1_BASE 0x40012400 #define ADC2_BASE 0x40012400 #define ADC3_BASE 0x40012400 @@ -74,17 +75,17 @@ void adc_init(void); void adc_disable(void); /** - * Perform a single conversion on ADC[0-16], + * Perform a single conversion on ADC[0-15]. * PRECONDITIONS: * adc initialized */ static inline int adc_read(int channel) { - /* Set channel */ + /* Set channel */ ADC_SQR3 = channel; - /* Start the conversion */ + /* Start the conversion */ CR2_SWSTART_BIT = 1; - /* Wait for it to finish */ + /* Wait for it to finish */ while(SR_EOC_BIT == 0) ; |