rau cha / mbed-src-I2CWaitFix

fix for mbed lib issue 3 (i2c problem) see also https://mbed.org/users/mbed_official/code/mbed/issues/3 affected implementations: LPC812, LPC11U24, LPC1768, LPC2368, LPC4088

Fork of mbed-src by mbed official

common/wait_api.c@13:bd9ff402dd42, 2013-08-05 (annotated)

Committer:
Shikaneo
Date:
Mon Aug 05 02:27:27 2013 +0000
Revision:
13:bd9ff402dd42
Parent:
10:3bc89ef62ce7 
equipped timeout

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "wait_api.h"
emilmont 10:3bc89ef62ce7 17 #include "us_ticker_api.h"
emilmont 10:3bc89ef62ce7 18
emilmont 10:3bc89ef62ce7 19 void wait(float s) {
emilmont 10:3bc89ef62ce7 20 wait_us(s * 1000000.0f);
emilmont 10:3bc89ef62ce7 21 }
emilmont 10:3bc89ef62ce7 22
emilmont 10:3bc89ef62ce7 23 void wait_ms(int ms) {
emilmont 10:3bc89ef62ce7 24 wait_us(ms * 1000);
emilmont 10:3bc89ef62ce7 25 }
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 void wait_us(int us) {
emilmont 10:3bc89ef62ce7 28 uint32_t start = us_ticker_read();
emilmont 10:3bc89ef62ce7 29 while ((us_ticker_read() - start) < us);
emilmont 10:3bc89ef62ce7 30 }