diff options
| -rw-r--r-- | ports/atmel-samd/board_busses.c | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/ports/atmel-samd/board_busses.c b/ports/atmel-samd/board_busses.c index 4f5b03d03..5c539e3f5 100644 --- a/ports/atmel-samd/board_busses.c +++ b/ports/atmel-samd/board_busses.c @@ -28,22 +28,35 @@ #include "shared-bindings/microcontroller/Pin.h" #include "mpconfigboard.h" #include "pins.h" +#include "py/runtime.h" -STATIC mp_obj_t i2c_singleton = NULL; -STATIC mp_obj_t board_i2c(void) { - #if !defined(DEFAULT_I2C_BUS_SDA) || !defined(DEFAULT_I2C_BUS_SCL) - mp_raise_NotImplementedError('no default bus'); - #endif - if (i2c_singleton == NULL) { - busio_i2c_obj_t *self = m_new_obj(busio_i2c_obj_t); - self->base.type = &busio_i2c_type; - assert_pin_free(DEFAULT_I2C_BUS_SDA); - assert_pin_free(DEFAULT_I2C_BUS_SCL); - common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 400000); - i2c_singleton = (mp_obj_t)self; +#if !defined(DEFAULT_I2C_BUS_SDA) || !defined(DEFAULT_I2C_BUS_SCL) + + STATIC mp_obj_t board_i2c(void) { + //board_i2c_obj = NULL; + mp_raise_NotImplementedError("no default bus"); + return NULL; + } + +#else + STATIC mp_obj_t i2c_singleton = NULL; + + STATIC mp_obj_t board_i2c(void) { + + if (i2c_singleton == NULL) { + busio_i2c_obj_t *self = m_new_obj(busio_i2c_obj_t); + self->base.type = &busio_i2c_type; + + assert_pin_free(DEFAULT_I2C_BUS_SDA); + assert_pin_free(DEFAULT_I2C_BUS_SCL); + common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 400000); + i2c_singleton = (mp_obj_t)self; + } + return i2c_singleton; + } - return i2c_singleton; -} +#endif + MP_DEFINE_CONST_FUN_OBJ_0(board_i2c_obj, board_i2c); |