/* | |
FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. | |
*************************************************************************** | |
>>! NOTE: The modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
*************************************************************************** | |
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY | |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
FOR A PARTICULAR PURPOSE. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* | |
* startup.c | |
* Author Jefferson L Smith, Robotronics Inc. | |
* | |
* __premain() is the startup code to init hardware and ram to execute the | |
* C application. | |
* | |
*/ | |
#include <sys/ports.h> | |
#include "cpu.h" | |
void ATTR_NEAR __premain (void); | |
void | |
__premain (void) | |
{ | |
// in case special mode enabled, avoid conflict on PORTE | |
PEAR |= NECLK; | |
// bgnd mode stops COP and RTI clocks | |
COPCTL = RSBCK; | |
// stops TCNT counter when debugging stops | |
TSCR1 |= (1<<5); // TFRZ | |
// PLL | |
CLKSEL = 0; // disable PLL to configure | |
// xtal 16MHz, bus 24MHz | |
SYNR = 3 - 1; | |
REFDV = 2 - 1; | |
while (!(CRGFLG & 0x08)) // wait for PLL LOCK | |
cop_optional_reset(); | |
CLKSEL |= 0x80; // use PLL | |
// init switch inputs | |
PERH = 0xff; // pullups | |
// outputs | |
#if PORT_LED==M6811_PORTB //PORTB | |
DDRB = 0xff; // init LED | |
#elif PORT_LED==M6811_PORTA //PORTA | |
DDRA = 0xff; | |
#elif PORT_LED==M6811_PTT //PTT | |
DDRT = 0xff; | |
#elif PORT_LED==M6811_PTM //PTM | |
DDRM = 0xff; | |
#elif PORT_LED==M6811_PTP //PTP | |
DDRP = 0xff; | |
#elif PORT_LED==M6811_PTH //PTH | |
DDRH = 0xff; | |
#endif | |
} | |