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| author | Scott Shawcroft <scott@tannewt.org> | 2020-09-25 11:07:22 -0700 |
|---|---|---|
| committer | Scott Shawcroft <scott@tannewt.org> | 2020-09-25 11:07:22 -0700 |
| commit | b9d68bc5a6b7b63f52da6c7034d379d6de51be7e (patch) | |
| tree | 0c326d78ac2aeb3b8946bca836030741f195a152 /shared-bindings | |
| parent | dd86cb00adb2ecb1e0cdf256d9a4e0f96a0c6de1 (diff) | |
Change I2C default to 100khz
Greater that 100khz is technically out of the original spec.
Background here: https://github.com/adafruit/Adafruit_CircuitPython_CLUE/issues/36
Diffstat (limited to 'shared-bindings')
| -rw-r--r-- | shared-bindings/busio/I2C.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/shared-bindings/busio/I2C.c b/shared-bindings/busio/I2C.c index 157e779fd..8b456dbd3 100644 --- a/shared-bindings/busio/I2C.c +++ b/shared-bindings/busio/I2C.c @@ -39,7 +39,7 @@ //| class I2C: //| """Two wire serial protocol""" //| -//| def __init__(self, scl: microcontroller.Pin, sda: microcontroller.Pin, *, frequency: int = 400000, timeout: int = 255) -> None: +//| def __init__(self, scl: microcontroller.Pin, sda: microcontroller.Pin, *, frequency: int = 100000, timeout: int = 255) -> None: //| //| """I2C is a two-wire protocol for communicating between devices. At the //| physical level it consists of 2 wires: SCL and SDA, the clock and data @@ -70,7 +70,7 @@ STATIC mp_obj_t busio_i2c_make_new(const mp_obj_type_t *type, size_t n_args, con static const mp_arg_t allowed_args[] = { { MP_QSTR_scl, MP_ARG_REQUIRED | MP_ARG_OBJ }, { MP_QSTR_sda, MP_ARG_REQUIRED | MP_ARG_OBJ }, - { MP_QSTR_frequency, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 400000} }, + { MP_QSTR_frequency, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 100000} }, { MP_QSTR_timeout, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 255} }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; |