mirror of
https://github.com/licsber/micropython.git
synced 2024-09-21 01:20:23 +08:00
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>
|
|
#include "lib/utils/interrupt_char.h"
|
|
|
|
static inline mp_uint_t mp_hal_ticks_us(void) {
|
|
return k_cyc_to_ns_floor64(k_cycle_get_32()) / 1000;
|
|
}
|
|
|
|
static inline mp_uint_t mp_hal_ticks_ms(void) {
|
|
return k_uptime_get();
|
|
}
|
|
|
|
static inline mp_uint_t mp_hal_ticks_cpu(void) {
|
|
// ticks_cpu() is defined as using the highest-resolution timing source
|
|
// in the system. This is usually a CPU clock, but doesn't have to be,
|
|
// here we just use Zephyr hi-res timer.
|
|
return k_cycle_get_32();
|
|
}
|
|
|
|
static inline void mp_hal_delay_us(mp_uint_t delay) {
|
|
k_busy_wait(delay);
|
|
}
|
|
|
|
static inline void mp_hal_delay_ms(mp_uint_t delay) {
|
|
k_msleep(delay);
|
|
}
|
|
|
|
static inline uint64_t mp_hal_time_ns(void) {
|
|
// Not currently implemented.
|
|
return 0;
|
|
}
|
|
|
|
#define mp_hal_delay_us_fast(us) (mp_hal_delay_us(us))
|
|
|
|
// C-level pin API is not currently implemented
|
|
#define MP_HAL_PIN_FMT "%d"
|
|
#define mp_hal_pin_name(p) (0)
|
|
#define mp_hal_pin_od_low(p) (mp_raise_NotImplementedError("mp_hal_pin_od_low"))
|
|
#define mp_hal_pin_od_high(p) (mp_raise_NotImplementedError("mp_hal_pin_od_high"))
|
|
#define mp_hal_pin_open_drain(p) (mp_raise_NotImplementedError("mp_hal_pin_open_drain"))
|