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Update I2C and SPI documentation

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This commit is contained in:
Dan Halbert 2019-10-29 09:58:44 -04:00
parent e35eb08f1d
commit 43b8d5e8ab
2 changed files with 8 additions and 3 deletions
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4
shared-bindings/busio/I2C.c
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@ -60,6 +60,10 @@
//| :param int frequency: The clock frequency in Hertz
//| :param int timeout: The maximum clock stretching timeut - (used only for bitbangio.I2C; ignored for busio.I2C)
//|
//| .. note:: On the nRF52840, only one I2C object may be created,
//| except on the Circuit Playground Bluefruit, which allows two,
//| one for the onboard accelerometer, and one for offboard use.
//|
STATIC mp_obj_t busio_i2c_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
busio_i2c_obj_t *self = m_new_obj(busio_i2c_obj_t);
self->base.type = &busio_i2c_type;

7
shared-bindings/busio/SPI.c
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@ -154,11 +154,12 @@ STATIC void check_for_deinit(busio_spi_obj_t *self) {
//| within spec for the SAMD21.
//|
//| .. note:: On the nRF52840, these baudrates are available: 125kHz, 250kHz, 1MHz, 2MHz, 4MHz,
//| and 8MHz. 16MHz and 32MHz are also available, but only on the first
//| `busio.SPI` object you create. Two more ``busio.SPI`` objects can be created, but they are restricted
//| to 8MHz maximum. This is a hardware restriction: there is only one high-speed SPI peripheral.
//| and 8MHz.
//| If you pick a a baudrate other than one of these, the nearest lower
//| baudrate will be chosen, with a minimum of 125kHz.
//| Two SPI objects may be created, except on the Circuit Playground Bluefruit,
//| which allows only one (to allow for an additional I2C object).
//|
STATIC mp_obj_t busio_spi_configure(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_baudrate, ARG_polarity, ARG_phase, ARG_bits };
static const mp_arg_t allowed_args[] = {