| /* | |
| * FreeRTOS Kernel V10.0.0 | |
| * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy of | |
| * this software and associated documentation files (the "Software"), to deal in | |
| * the Software without restriction, including without limitation the rights to | |
| * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of | |
| * the Software, and to permit persons to whom the Software is furnished to do so, | |
| * subject to the following conditions: | |
| * | |
| * The above copyright notice and this permission notice shall be included in all | |
| * copies or substantial portions of the Software. If you wish to use our Amazon | |
| * FreeRTOS name, please do so in a fair use way that does not cause confusion. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS | |
| * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR | |
| * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
| * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| * | |
| * http://www.FreeRTOS.org | |
| * http://aws.amazon.com/freertos | |
| * | |
| * 1 tab == 4 spaces! | |
| */ | |
| #include "FreeRTOS.h" | |
| /*-----------------------------------------------------------*/ | |
| /* Called by the startup code to initialise the run time system. */ | |
| unsigned char __low_level_init( void ); | |
| /*-----------------------------------------------------------*/ | |
| unsigned char __low_level_init( void ) | |
| { | |
| unsigned char resetflag = RESF; | |
| unsigned portBASE_TYPE i = 0; | |
| portDISABLE_INTERRUPTS(); /* disable global interrupts */ | |
| PRCMD = 0x00; /* On-chip debug mode */ | |
| PCC = 0x00; /* high speed mode fCPU */ | |
| VSWC = 0x00; | |
| WDTM2 = 0xF; /* Stop watchdog Timer */ | |
| PLLS = 0x03; /* Set PLL stabilisation time */ | |
| PLLON = 1; /* activate PLL */ | |
| for( i = 0; i <= 2000; i++ ) /* Wait for stabilisation */ | |
| { | |
| portNOP(); | |
| } | |
| while( LOCK ) /* Wait for PLL frequency stabiliasation */ | |
| { | |
| portNOP(); | |
| } | |
| SELPLL = 1; /* Set CPU operation to PLL mode */ | |
| return pdTRUE; | |
| } | |
| /*-----------------------------------------------------------*/ |