39d50d129c
Previous commits removed the ability for one I2C/SPI constructor to
construct both software- or hardware-based peripheral instances. Such
construction is now split to explicit soft and non-soft types.
This commit makes both types available in all ports that previously could
create both software and hardware peripherals: machine.I2C and machine.SPI
construct hardware instances, while machine.SoftI2C and machine.SoftSPI
create software instances.
This is a breaking change for use of software-based I2C and SPI. Code that
constructed I2C/SPI peripherals in the following way will need to be
changed:
machine.I2C(-1, ...) -> machine.SoftI2C(...)
machine.I2C(scl=scl, sda=sda) -> machine.SoftI2C(scl=scl, sda=sda)
machine.SPI(-1, ...) -> machine.SoftSPI(...)
machine.SPI(sck=sck, mosi=mosi, miso=miso)
-> machine.SoftSPI(sck=sck, mosi=mosi, miso=miso)
Code which uses machine.I2C and machine.SPI classes to access hardware
peripherals does not need to change.
Signed-off-by: Damien George <damien@micropython.org>
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
#include <zephyr.h>
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#include "lib/utils/interrupt_char.h"
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static inline mp_uint_t mp_hal_ticks_us(void) {
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return k_cyc_to_ns_floor64(k_cycle_get_32()) / 1000;
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}
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static inline mp_uint_t mp_hal_ticks_ms(void) {
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return k_uptime_get();
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}
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static inline mp_uint_t mp_hal_ticks_cpu(void) {
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// ticks_cpu() is defined as using the highest-resolution timing source
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// in the system. This is usually a CPU clock, but doesn't have to be,
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// here we just use Zephyr hi-res timer.
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return k_cycle_get_32();
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}
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static inline void mp_hal_delay_us(mp_uint_t delay) {
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k_busy_wait(delay);
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}
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static inline void mp_hal_delay_ms(mp_uint_t delay) {
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k_msleep(delay);
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}
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static inline uint64_t mp_hal_time_ns(void) {
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// Not currently implemented.
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return 0;
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}
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#define mp_hal_delay_us_fast(us) (mp_hal_delay_us(us))
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// C-level pin API is not currently implemented
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#define MP_HAL_PIN_FMT "%d"
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#define mp_hal_pin_name(p) (0)
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#define mp_hal_pin_od_low(p) (mp_raise_NotImplementedError("mp_hal_pin_od_low"))
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#define mp_hal_pin_od_high(p) (mp_raise_NotImplementedError("mp_hal_pin_od_high"))
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#define mp_hal_pin_open_drain(p) (mp_raise_NotImplementedError("mp_hal_pin_open_drain"))
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