Mouse code for the MacroRat
mbed-dev/targets/TARGET_NXP/TARGET_LPC11U6X/rtc_api.c@18:6a4db94011d3, 2017-05-14 (annotated)
- Committer:
- sahilmgandhi
- Date:
- Sun May 14 23:18:57 2017 +0000
- Revision:
- 18:6a4db94011d3
Publishing again
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sahilmgandhi | 18:6a4db94011d3 | 1 | /* mbed Microcontroller Library |
sahilmgandhi | 18:6a4db94011d3 | 2 | * Copyright (c) 2006-2013 ARM Limited |
sahilmgandhi | 18:6a4db94011d3 | 3 | * |
sahilmgandhi | 18:6a4db94011d3 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
sahilmgandhi | 18:6a4db94011d3 | 5 | * you may not use this file except in compliance with the License. |
sahilmgandhi | 18:6a4db94011d3 | 6 | * You may obtain a copy of the License at |
sahilmgandhi | 18:6a4db94011d3 | 7 | * |
sahilmgandhi | 18:6a4db94011d3 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
sahilmgandhi | 18:6a4db94011d3 | 9 | * |
sahilmgandhi | 18:6a4db94011d3 | 10 | * Unless required by applicable law or agreed to in writing, software |
sahilmgandhi | 18:6a4db94011d3 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
sahilmgandhi | 18:6a4db94011d3 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
sahilmgandhi | 18:6a4db94011d3 | 13 | * See the License for the specific language governing permissions and |
sahilmgandhi | 18:6a4db94011d3 | 14 | * limitations under the License. |
sahilmgandhi | 18:6a4db94011d3 | 15 | */ |
sahilmgandhi | 18:6a4db94011d3 | 16 | #include "rtc_api.h" |
sahilmgandhi | 18:6a4db94011d3 | 17 | |
sahilmgandhi | 18:6a4db94011d3 | 18 | #if DEVICE_RTC |
sahilmgandhi | 18:6a4db94011d3 | 19 | |
sahilmgandhi | 18:6a4db94011d3 | 20 | void rtc_init(void) |
sahilmgandhi | 18:6a4db94011d3 | 21 | { |
sahilmgandhi | 18:6a4db94011d3 | 22 | // Enables clock for RTC |
sahilmgandhi | 18:6a4db94011d3 | 23 | LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 30); |
sahilmgandhi | 18:6a4db94011d3 | 24 | |
sahilmgandhi | 18:6a4db94011d3 | 25 | // Software reset |
sahilmgandhi | 18:6a4db94011d3 | 26 | LPC_RTC->CTRL |= 1; |
sahilmgandhi | 18:6a4db94011d3 | 27 | |
sahilmgandhi | 18:6a4db94011d3 | 28 | LPC_RTC->COUNT = 0; |
sahilmgandhi | 18:6a4db94011d3 | 29 | |
sahilmgandhi | 18:6a4db94011d3 | 30 | // Enabled RTC |
sahilmgandhi | 18:6a4db94011d3 | 31 | LPC_RTC->CTRL |= (1 << 7); |
sahilmgandhi | 18:6a4db94011d3 | 32 | // clear reset |
sahilmgandhi | 18:6a4db94011d3 | 33 | LPC_RTC->CTRL &= ~1; |
sahilmgandhi | 18:6a4db94011d3 | 34 | } |
sahilmgandhi | 18:6a4db94011d3 | 35 | |
sahilmgandhi | 18:6a4db94011d3 | 36 | void rtc_free(void) |
sahilmgandhi | 18:6a4db94011d3 | 37 | { |
sahilmgandhi | 18:6a4db94011d3 | 38 | LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 30); |
sahilmgandhi | 18:6a4db94011d3 | 39 | LPC_RTC->CTRL &= ~(1 << 7); |
sahilmgandhi | 18:6a4db94011d3 | 40 | } |
sahilmgandhi | 18:6a4db94011d3 | 41 | |
sahilmgandhi | 18:6a4db94011d3 | 42 | int rtc_isenabled(void) |
sahilmgandhi | 18:6a4db94011d3 | 43 | { |
sahilmgandhi | 18:6a4db94011d3 | 44 | return (((LPC_RTC->CTRL) & 0x80) != 0); |
sahilmgandhi | 18:6a4db94011d3 | 45 | } |
sahilmgandhi | 18:6a4db94011d3 | 46 | |
sahilmgandhi | 18:6a4db94011d3 | 47 | time_t rtc_read(void) |
sahilmgandhi | 18:6a4db94011d3 | 48 | { |
sahilmgandhi | 18:6a4db94011d3 | 49 | return (time_t)LPC_RTC->COUNT; |
sahilmgandhi | 18:6a4db94011d3 | 50 | } |
sahilmgandhi | 18:6a4db94011d3 | 51 | |
sahilmgandhi | 18:6a4db94011d3 | 52 | void rtc_write(time_t t) |
sahilmgandhi | 18:6a4db94011d3 | 53 | { |
sahilmgandhi | 18:6a4db94011d3 | 54 | // Disabled RTC |
sahilmgandhi | 18:6a4db94011d3 | 55 | LPC_RTC->CTRL &= ~(1 << 7); |
sahilmgandhi | 18:6a4db94011d3 | 56 | |
sahilmgandhi | 18:6a4db94011d3 | 57 | // Set count |
sahilmgandhi | 18:6a4db94011d3 | 58 | LPC_RTC->COUNT = t; |
sahilmgandhi | 18:6a4db94011d3 | 59 | |
sahilmgandhi | 18:6a4db94011d3 | 60 | //Enabled RTC |
sahilmgandhi | 18:6a4db94011d3 | 61 | LPC_RTC->CTRL |= (1 << 7); |
sahilmgandhi | 18:6a4db94011d3 | 62 | } |
sahilmgandhi | 18:6a4db94011d3 | 63 | |
sahilmgandhi | 18:6a4db94011d3 | 64 | #endif |