esp8266: Add mp_hal_delay_us function.

2 files changed, 5 insertions, 0 deletions

diff --git a/esp8266/esp_mphal.c b/esp8266/esp_mphal.c
index 471b1fe34..f5e9468e5 100644
--- a/esp8266/esp_mphal.c
+++ b/esp8266/esp_mphal.c
@@ -86,6 +86,10 @@ uint32_t mp_hal_ticks_ms(void) {
     return system_get_time() / 1000;
 }
 
+uint32_t mp_hal_ticks_us(void) {
+    return system_get_time();
+}
+
 void mp_hal_delay_ms(uint32_t delay) {
     mp_hal_delay_us(delay * 1000);
 }
diff --git a/esp8266/esp_mphal.h b/esp8266/esp_mphal.h
index dc6a79f2b..5c7b81635 100644
--- a/esp8266/esp_mphal.h
+++ b/esp8266/esp_mphal.h
@@ -33,6 +33,7 @@ void ets_isr_mask(unsigned);
 void mp_hal_init(void);
 void mp_hal_feed_watchdog(void);
 
+uint32_t mp_hal_ticks_us(void);
 void mp_hal_delay_us(uint32_t);
 void mp_hal_set_interrupt_char(int c);
 uint32_t mp_hal_get_cpu_freq(void);