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mp_hal_delay_ms() to call background task

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remove hal_time.c
This commit is contained in:
hathach 2018-07-06 15:48:01 +07:00
parent 948ddf8463
commit 3e319694aa
2 changed files with 95 additions and 2 deletions
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1
ports/nrf/Makefile
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@ -95,7 +95,6 @@ LIBS += -L $(dir $(LIBGCC_FILE_NAME)) -lgcc
SRC_HAL = $(addprefix hal/,\
hal_uart.c \
hal_time.c \
hal_rng.c \
)

96
ports/nrf/mphalport.c
View File

@ -30,9 +30,11 @@
#include "py/mpstate.h"
#include "py/mphal.h"
#include "py/mperrno.h"
#include "hal_uart.h"
#include "tick.h"
#if !defined( NRF52840_XXAA) || ( defined(CFG_HWUART_FOR_SERIAL) && CFG_HWUART_FOR_SERIAL == 1 )
#include "hal_uart.h"
#define UART_INSTANCE UART_BASE(0)
@ -154,5 +156,97 @@ void mp_hal_stdout_tx_str(const char *str) {
#endif
void mp_hal_delay_ms(mp_uint_t delay) {
uint64_t start_tick = ticks_ms;
uint64_t duration = 0;
while (duration < delay) {
#ifdef MICROPY_VM_HOOK_LOOP
MICROPY_VM_HOOK_LOOP
#endif
// Check to see if we've been CTRL-Ced by autoreload or the user.
if(MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception))) {
break;
}
duration = (ticks_ms - start_tick);
// TODO(tannewt): Go to sleep for a little while while we wait.
}
}
void mp_hal_delay_us(mp_uint_t us)
{
register uint32_t delay __ASM ("r0") = us;
__ASM volatile (
#ifdef NRF51
".syntax unified\n"
#endif
"1:\n"
" SUBS %0, %0, #1\n"
" NOP\n"
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#ifdef NRF52
" NOP\n"
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#endif
" BNE 1b\n"
#ifdef NRF51
".syntax divided\n"
#endif
: "+r" (delay));
}