51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "esp32-hal.h"
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_attr.h"
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uint32_t IRAM_ATTR micros()
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{
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uint32_t ccount;
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__asm__ __volatile__ ( "rsr %0, ccount" : "=a" (ccount) );
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return ccount / CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ;
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//return system_get_time();
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}
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uint32_t IRAM_ATTR millis()
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{
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return xTaskGetTickCount() * portTICK_PERIOD_MS;
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}
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void delay(uint32_t ms)
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{
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vTaskDelay(ms / portTICK_PERIOD_MS);
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}
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void delayMicroseconds(uint32_t us)
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{
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if(us) {
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unsigned long endat = micros();
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endat += us;
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while(micros() < endat) {
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NOP();
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}
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}
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}
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