BeRTOS
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ADC hardware-specific definition. More...
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Defines | |
#define | ADC_MUX_MAXCH 8 |
ADC config define. | |
#define | ADC_COMPUTED_PRESCALER (DIV_ROUNDUP(CPU_FREQ, 2 * CONFIG_ADC_CLOCK) - 1) |
Macro for computing correct value to write into ADC register. | |
#define | ADC_INIT_PINS() |
Init pins macro for adc. | |
Functions | |
void | adc_hw_select_ch (uint8_t ch) |
Select mux channel ch. | |
uint16_t | adc_hw_read (void) |
Start an ADC convertion. | |
void | adc_hw_init (void) |
Init ADC hardware. |
ADC hardware-specific definition.
Definition in file adc_at91.h.
#define ADC_INIT_PINS | ( | ) |
do { \ } while (0)
Init pins macro for adc.
Define PIO controller for enable ADC function. Init the ADC pins. Implement it if necessary.
Definition at line 87 of file adc_at91.h.
uint16_t adc_hw_read | ( | void | ) |
Start an ADC convertion.
If a kernel is present, preempt until convertion is complete, otherwise a busy wait on ADC_DRDY bit is done.
If a kernel is present, preempt until convertion is complete, otherwise a busy wait on ADCS bit is done.
Definition at line 130 of file adc_at91.c.
void adc_hw_select_ch | ( | uint8_t | ch | ) |
Select mux channel ch.
Generally the stm32 cpu family allow us to program the order of adc channel that we want to read. In this driver implementation we put as fist channel to read the select ones.
Definition at line 116 of file adc_at91.c.