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rp2/machine_adc: Add support for external ADC channels.

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Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
This commit is contained in:
iabdalkader
2023-10-17 12:36:11 +02:00
committed by Damien George
parent 4358faab0c
commit 5e52389f99
3 changed files with 43 additions and 6 deletions
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7
ports/rp2/machine_pin.h
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@@ -34,7 +34,8 @@ enum {
MACHINE_PIN_MODE_IN = 0,
MACHINE_PIN_MODE_OUT = 1,
MACHINE_PIN_MODE_OPEN_DRAIN = 2,
MACHINE_PIN_MODE_ALT = 3
MACHINE_PIN_MODE_ALT = 3,
MACHINE_PIN_MODE_ANALOG = 4
};
typedef struct _machine_pin_af_obj_t {
@@ -71,10 +72,14 @@ extern const mp_obj_type_t pin_board_pins_obj_type;
extern const mp_obj_dict_t pin_board_pins_locals_dict;
void machine_pin_ext_init(void);
bool machine_pin_ext_is_adc_channel(const machine_pin_obj_t *self);
uint32_t machine_pin_ext_to_adc_channel(const machine_pin_obj_t *self);
void machine_pin_ext_set(machine_pin_obj_t *self, bool value);
bool machine_pin_ext_get(machine_pin_obj_t *self);
uint16_t machine_pin_ext_read_u16(uint32_t channel);
void machine_pin_ext_config(machine_pin_obj_t *self, int mode, int value);
const machine_pin_obj_t *machine_pin_find(mp_obj_t pin);
const machine_pin_obj_t *machine_pin_find_named(const mp_obj_dict_t *named_pins, mp_obj_t name);
const machine_pin_af_obj_t *machine_pin_find_alt(const machine_pin_obj_t *pin, uint8_t fn);
const machine_pin_af_obj_t *machine_pin_find_alt_by_index(const machine_pin_obj_t *pin, mp_uint_t af_idx);