diff options
Diffstat (limited to 'ports/stm32/pin.c')
| -rw-r--r-- | ports/stm32/pin.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/ports/stm32/pin.c b/ports/stm32/pin.c index 0b939334a..117a8366d 100644 --- a/ports/stm32/pin.c +++ b/ports/stm32/pin.c @@ -103,7 +103,11 @@ const machine_pin_obj_t *pin_find(mp_obj_t user_obj) { const machine_pin_obj_t *pin_obj; // If a pin was provided, then use it - if (mp_obj_is_type(user_obj, &pin_type)) { + if (mp_obj_is_type(user_obj, &pin_type) + #if MICROPY_HW_ENABLE_ANALOG_ONLY_PINS + || mp_obj_is_type(user_obj, &pin_analog_type) + #endif + ) { pin_obj = MP_OBJ_TO_PTR(user_obj); if (pin_class_debug) { mp_printf(print, "Pin map passed pin "); @@ -601,6 +605,44 @@ MP_DEFINE_CONST_OBJ_TYPE( locals_dict, &pin_locals_dict ); +/******************************************************************************/ +// Special analog-only pin. + +#if MICROPY_HW_ENABLE_ANALOG_ONLY_PINS + +// When both normal and _C pins are defined in pins.csv, force the corresponding +// analog switch to be open. The macro code below will produce a compiler warning +// if the board defines the switch as closed. +#if defined(pin_A0) && defined(pin_A0_C) +#define MICROPY_HW_ANALOG_SWITCH_PA0 (SYSCFG_SWITCH_PA0_OPEN) +#endif +#if defined(pin_A1) && defined(pin_A1_C) +#define MICROPY_HW_ANALOG_SWITCH_PA1 (SYSCFG_SWITCH_PA1_OPEN) +#endif +#if defined(pin_C2) && defined(pin_C2_C) +#define MICROPY_HW_ANALOG_SWITCH_PC2 (SYSCFG_SWITCH_PC2_OPEN) +#endif +#if defined(pin_C3) && defined(pin_C3_C) +#define MICROPY_HW_ANALOG_SWITCH_PC3 (SYSCFG_SWITCH_PC3_OPEN) +#endif + +static void pin_analog_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { + machine_pin_obj_t *self = MP_OBJ_TO_PTR(self_in); + mp_printf(print, "Pin(Pin.cpu.%q, mode=Pin.ANALOG)", self->name); +} + +MP_DEFINE_CONST_OBJ_TYPE( + pin_analog_type, + MP_QSTR_Pin, + MP_TYPE_FLAG_NONE, + print, pin_analog_print + ); + +#endif + +/******************************************************************************/ +// PinAF class + /// \moduleref pyb /// \class PinAF - Pin Alternate Functions /// |