Mouse code for the MacroRat
mbed-dev/targets/TARGET_ARM_SSG/TARGET_IOTSS/TARGET_IOTSS_BEID/device/system_CMSDK_BEID.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 | /* MPS2 CMSIS Library |
sahilmgandhi | 18:6a4db94011d3 | 2 | * |
sahilmgandhi | 18:6a4db94011d3 | 3 | * Copyright (c) 2006-2016 ARM Limited |
sahilmgandhi | 18:6a4db94011d3 | 4 | * All rights reserved. |
sahilmgandhi | 18:6a4db94011d3 | 5 | * |
sahilmgandhi | 18:6a4db94011d3 | 6 | * Redistribution and use in source and binary forms, with or without |
sahilmgandhi | 18:6a4db94011d3 | 7 | * modification, are permitted provided that the following conditions are met: |
sahilmgandhi | 18:6a4db94011d3 | 8 | * |
sahilmgandhi | 18:6a4db94011d3 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
sahilmgandhi | 18:6a4db94011d3 | 10 | * this list of conditions and the following disclaimer. |
sahilmgandhi | 18:6a4db94011d3 | 11 | * |
sahilmgandhi | 18:6a4db94011d3 | 12 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
sahilmgandhi | 18:6a4db94011d3 | 13 | * this list of conditions and the following disclaimer in the documentation |
sahilmgandhi | 18:6a4db94011d3 | 14 | * and/or other materials provided with the distribution. |
sahilmgandhi | 18:6a4db94011d3 | 15 | * |
sahilmgandhi | 18:6a4db94011d3 | 16 | * 3. Neither the name of the copyright holder nor the names of its contributors |
sahilmgandhi | 18:6a4db94011d3 | 17 | * may be used to endorse or promote products derived from this software without |
sahilmgandhi | 18:6a4db94011d3 | 18 | * specific prior written permission. |
sahilmgandhi | 18:6a4db94011d3 | 19 | * |
sahilmgandhi | 18:6a4db94011d3 | 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
sahilmgandhi | 18:6a4db94011d3 | 21 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
sahilmgandhi | 18:6a4db94011d3 | 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
sahilmgandhi | 18:6a4db94011d3 | 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
sahilmgandhi | 18:6a4db94011d3 | 24 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
sahilmgandhi | 18:6a4db94011d3 | 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
sahilmgandhi | 18:6a4db94011d3 | 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
sahilmgandhi | 18:6a4db94011d3 | 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
sahilmgandhi | 18:6a4db94011d3 | 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
sahilmgandhi | 18:6a4db94011d3 | 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
sahilmgandhi | 18:6a4db94011d3 | 30 | * POSSIBILITY OF SUCH DAMAGE. |
sahilmgandhi | 18:6a4db94011d3 | 31 | ******************************************************************************* |
sahilmgandhi | 18:6a4db94011d3 | 32 | * @file system_CMSDK_BEID.c |
sahilmgandhi | 18:6a4db94011d3 | 33 | * @brief CMSIS Device System Source File for |
sahilmgandhi | 18:6a4db94011d3 | 34 | * CMSDK_BEID Device |
sahilmgandhi | 18:6a4db94011d3 | 35 | * |
sahilmgandhi | 18:6a4db94011d3 | 36 | *******************************************************************************/ |
sahilmgandhi | 18:6a4db94011d3 | 37 | |
sahilmgandhi | 18:6a4db94011d3 | 38 | |
sahilmgandhi | 18:6a4db94011d3 | 39 | #include "CMSDK_BEID.h" |
sahilmgandhi | 18:6a4db94011d3 | 40 | |
sahilmgandhi | 18:6a4db94011d3 | 41 | /*---------------------------------------------------------------------------- |
sahilmgandhi | 18:6a4db94011d3 | 42 | Define clocks |
sahilmgandhi | 18:6a4db94011d3 | 43 | *----------------------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 44 | #define __XTAL (48000000UL) /* Oscillator frequency */ |
sahilmgandhi | 18:6a4db94011d3 | 45 | |
sahilmgandhi | 18:6a4db94011d3 | 46 | #define __SYSTEM_CLOCK (__XTAL / 2) |
sahilmgandhi | 18:6a4db94011d3 | 47 | |
sahilmgandhi | 18:6a4db94011d3 | 48 | |
sahilmgandhi | 18:6a4db94011d3 | 49 | /*---------------------------------------------------------------------------- |
sahilmgandhi | 18:6a4db94011d3 | 50 | Clock Variable definitions |
sahilmgandhi | 18:6a4db94011d3 | 51 | *----------------------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 52 | uint32_t SystemCoreClock = __SYSTEM_CLOCK;/*!< System Clock Frequency (Core Clock)*/ |
sahilmgandhi | 18:6a4db94011d3 | 53 | |
sahilmgandhi | 18:6a4db94011d3 | 54 | |
sahilmgandhi | 18:6a4db94011d3 | 55 | /*---------------------------------------------------------------------------- |
sahilmgandhi | 18:6a4db94011d3 | 56 | Clock functions |
sahilmgandhi | 18:6a4db94011d3 | 57 | *----------------------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 58 | /** |
sahilmgandhi | 18:6a4db94011d3 | 59 | * Update SystemCoreClock variable |
sahilmgandhi | 18:6a4db94011d3 | 60 | * |
sahilmgandhi | 18:6a4db94011d3 | 61 | * @param none |
sahilmgandhi | 18:6a4db94011d3 | 62 | * @return none |
sahilmgandhi | 18:6a4db94011d3 | 63 | * |
sahilmgandhi | 18:6a4db94011d3 | 64 | * @brief Updates the SystemCoreClock with current core Clock |
sahilmgandhi | 18:6a4db94011d3 | 65 | * retrieved from cpu registers. |
sahilmgandhi | 18:6a4db94011d3 | 66 | */ |
sahilmgandhi | 18:6a4db94011d3 | 67 | void SystemCoreClockUpdate (void) |
sahilmgandhi | 18:6a4db94011d3 | 68 | { |
sahilmgandhi | 18:6a4db94011d3 | 69 | |
sahilmgandhi | 18:6a4db94011d3 | 70 | SystemCoreClock = __SYSTEM_CLOCK; |
sahilmgandhi | 18:6a4db94011d3 | 71 | |
sahilmgandhi | 18:6a4db94011d3 | 72 | } |
sahilmgandhi | 18:6a4db94011d3 | 73 | |
sahilmgandhi | 18:6a4db94011d3 | 74 | /** |
sahilmgandhi | 18:6a4db94011d3 | 75 | * Initialize the system |
sahilmgandhi | 18:6a4db94011d3 | 76 | * |
sahilmgandhi | 18:6a4db94011d3 | 77 | * @param none |
sahilmgandhi | 18:6a4db94011d3 | 78 | * @return none |
sahilmgandhi | 18:6a4db94011d3 | 79 | * |
sahilmgandhi | 18:6a4db94011d3 | 80 | * @brief Setup the microcontroller system. |
sahilmgandhi | 18:6a4db94011d3 | 81 | * Initialize the System. |
sahilmgandhi | 18:6a4db94011d3 | 82 | */ |
sahilmgandhi | 18:6a4db94011d3 | 83 | void SystemInit (void) |
sahilmgandhi | 18:6a4db94011d3 | 84 | { |
sahilmgandhi | 18:6a4db94011d3 | 85 | |
sahilmgandhi | 18:6a4db94011d3 | 86 | #ifdef UNALIGNED_SUPPORT_DISABLE |
sahilmgandhi | 18:6a4db94011d3 | 87 | SCB->CCR |= SCB_CCR_UNALIGN_TRP_Msk; |
sahilmgandhi | 18:6a4db94011d3 | 88 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 89 | |
sahilmgandhi | 18:6a4db94011d3 | 90 | SystemCoreClock = __SYSTEM_CLOCK; |
sahilmgandhi | 18:6a4db94011d3 | 91 | |
sahilmgandhi | 18:6a4db94011d3 | 92 | // Enable AHB and APB clock |
sahilmgandhi | 18:6a4db94011d3 | 93 | CMSDK_SYSCON->AHBCLKCFG0SET = 0xF; // GPIO |
sahilmgandhi | 18:6a4db94011d3 | 94 | CMSDK_SYSCON->APBCLKCFG0SET = 0xF9B7; // UART0, UART1, TIMER0, TIMER1, DUAL TIMER |
sahilmgandhi | 18:6a4db94011d3 | 95 | } |