spinal cord / PokittoLib_

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

POKITTO_HW/PokittoClock.cpp@64:6e6c6c2b664e, 2018-11-18 (annotated)

Committer:
spinal
Date:
Sun Nov 18 15:47:54 2018 +0000
Revision:
64:6e6c6c2b664e
Parent:
36:771321e70814 
added fix for directrectangle()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 36:771321e70814 1 /**************************************************************************/
Pokitto 36:771321e70814 2 /*!
Pokitto 36:771321e70814 3 @file PokittoClock.cpp
Pokitto 36:771321e70814 4 @author Jonne Valola
Pokitto 36:771321e70814 5
Pokitto 36:771321e70814 6 @section LICENSE
Pokitto 36:771321e70814 7
Pokitto 36:771321e70814 8 Software License Agreement (BSD License)
Pokitto 36:771321e70814 9
Pokitto 36:771321e70814 10 Copyright (c) 2015, Jonne Valola
Pokitto 36:771321e70814 11 All rights reserved.
Pokitto 36:771321e70814 12
Pokitto 36:771321e70814 13 Redistribution and use in source and binary forms, with or without
Pokitto 36:771321e70814 14 modification, are permitted provided that the following conditions are met:
Pokitto 36:771321e70814 15 1. Redistributions of source code must retain the above copyright
Pokitto 36:771321e70814 16 notice, this list of conditions and the following disclaimer.
Pokitto 36:771321e70814 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 36:771321e70814 18 notice, this list of conditions and the following disclaimer in the
Pokitto 36:771321e70814 19 documentation and/or other materials provided with the distribution.
Pokitto 36:771321e70814 20 3. Neither the name of the copyright holders nor the
Pokitto 36:771321e70814 21 names of its contributors may be used to endorse or promote products
Pokitto 36:771321e70814 22 derived from this software without specific prior written permission.
Pokitto 36:771321e70814 23
Pokitto 36:771321e70814 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 36:771321e70814 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 36:771321e70814 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 36:771321e70814 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 36:771321e70814 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 36:771321e70814 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 36:771321e70814 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 36:771321e70814 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 36:771321e70814 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 36:771321e70814 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 36:771321e70814 34 */
Pokitto 36:771321e70814 35 /**************************************************************************/
Pokitto 36:771321e70814 36
Pokitto 36:771321e70814 37 #include "PokittoCore.h"
Pokitto 36:771321e70814 38 #include "pinmap.h"
Pokitto 36:771321e70814 39 #include "HWLCD.h"
Pokitto 36:771321e70814 40 #include "Pokitto_settings.h"
Pokitto 36:771321e70814 41 #include "wait_api.h"
Pokitto 36:771321e70814 42
Pokitto 36:771321e70814 43 uint32_t pt_count=0;
Pokitto 36:771321e70814 44 uint32_t* ptimer;
Pokitto 36:771321e70814 45
Pokitto 36:771321e70814 46 extern "C" {
Pokitto 36:771321e70814 47 void SysTick_Handler(void) {
Pokitto 36:771321e70814 48 //interrupt happens when systick has counted down to zero
Pokitto 36:771321e70814 49 #if PROJ_GAMEBOY > 0
Pokitto 36:771321e70814 50 uint32_t a;
Pokitto 36:771321e70814 51 a = *ptimer;
Pokitto 36:771321e70814 52 *ptimer = a + 1;
Pokitto 36:771321e70814 53 #endif
Pokitto 36:771321e70814 54 pt_count+=10; // increment counter
Pokitto 36:771321e70814 55 }}
Pokitto 36:771321e70814 56
Pokitto 36:771321e70814 57 using namespace Pokitto;
Pokitto 36:771321e70814 58
Pokitto 36:771321e70814 59 uint32_t Core::refreshtime;
Pokitto 36:771321e70814 60
Pokitto 36:771321e70814 61 void Core::initClock() {
Pokitto 36:771321e70814 62 // to get 1000 interrupts per second the reload value should be 48000
Pokitto 36:771321e70814 63 #if PROJ_GAMEBOY > 0
Pokitto 36:771321e70814 64 ptimer = &pt_count;
Pokitto 36:771321e70814 65 SysTick->LOAD = 480000-1;
Pokitto 36:771321e70814 66 #else
Pokitto 36:771321e70814 67 #ifdef _OSCT
Pokitto 36:771321e70814 68 SysTick->LOAD = (480000*3/_OSCT)-1;
Pokitto 36:771321e70814 69 #else
Pokitto 36:771321e70814 70 SysTick->LOAD = 480000-1;
Pokitto 36:771321e70814 71 #endif
Pokitto 36:771321e70814 72 #endif
Pokitto 36:771321e70814 73 SysTick->VAL = 0;
Pokitto 36:771321e70814 74 SysTick->CTRL = 4 | 2 | 1; //CLKSOURCE=CPU clock | TICKINT | ENABLE
Pokitto 36:771321e70814 75 pt_count = 0;
Pokitto 36:771321e70814 76 }
Pokitto 36:771321e70814 77
Pokitto 36:771321e70814 78 uint32_t Core::getTime() {
Pokitto 36:771321e70814 79 return pt_count;
Pokitto 36:771321e70814 80 }
Pokitto 36:771321e70814 81
Pokitto 36:771321e70814 82 void Core::wait(uint16_t ms) {
Pokitto 36:771321e70814 83 wait_ms(ms);
Pokitto 36:771321e70814 84 }
Pokitto 36:771321e70814 85
Pokitto 36:771321e70814 86