customized mbed library sources for nrf51822
Dependents: Grove_Node Potentiometer BLE_Beacon I2C_Scanner
Diff: common/wait_api.c
- Revision:
- 0:700cadd8b708
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/common/wait_api.c Tue Nov 04 07:38:53 2014 +0000 @@ -0,0 +1,30 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "wait_api.h" +#include "us_ticker_api.h" + +void wait(float s) { + wait_us(s * 1000000.0f); +} + +void wait_ms(int ms) { + wait_us(ms * 1000); +} + +void wait_us(int us) { + uint32_t start = us_ticker_read(); + while ((us_ticker_read() - start) < (uint32_t)us); +}