1 // Copyright 2015 Olivier Gillet. 2 // 3 // Author: Olivier Gillet (ol.gillet@gmail.com) 4 // 5 // Permission is hereby granted, free of charge, to any person obtaining a copy 6 // of this software and associated documentation files (the "Software"), to deal 7 // in the Software without restriction, including without limitation the rights 8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 // copies of the Software, and to permit persons to whom the Software is 10 // furnished to do so, subject to the following conditions: 11 // 12 // The above copyright notice and this permission notice shall be included in 13 // all copies or substantial portions of the Software. 14 // 15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 // THE SOFTWARE. 22 // 23 // See http://creativecommons.org/licenses/MIT/ for more information. 24 // 25 // ----------------------------------------------------------------------------- 26 // 27 // Driver for the debug (timing) pin. 28 29 #ifndef RINGS_DRIVERS_DEBUG_PIN_H_ 30 #define RINGS_DRIVERS_DEBUG_PIN_H_ 31 32 #include "stmlib/stmlib.h" 33 34 #ifndef TEST 35 #include <stm32f4xx_conf.h> 36 #endif 37 38 namespace rings { 39 40 class DebugPin { 41 public: DebugPin()42 DebugPin() { } ~DebugPin()43 ~DebugPin() { } 44 #ifdef TEST Init()45 static void Init() { } High()46 static void High() { } Low()47 static void Low() { } 48 #else Init()49 static void Init() { 50 RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); 51 52 GPIO_InitTypeDef gpio_init; 53 gpio_init.GPIO_Pin = GPIO_Pin_9; 54 gpio_init.GPIO_Mode = GPIO_Mode_OUT; 55 gpio_init.GPIO_OType = GPIO_OType_PP; 56 gpio_init.GPIO_Speed = GPIO_Speed_25MHz; 57 gpio_init.GPIO_PuPd = GPIO_PuPd_NOPULL; 58 GPIO_Init(GPIOA, &gpio_init); 59 } High()60 static inline void High() { 61 GPIOA->BSRRL = GPIO_Pin_9; 62 } Low()63 static inline void Low() { 64 GPIOA->BSRRH = GPIO_Pin_9; 65 } 66 #endif 67 private: 68 DISALLOW_COPY_AND_ASSIGN(DebugPin); 69 }; 70 71 #define TIC DebugPin::High(); 72 #define TOC DebugPin::Low(); 73 74 } // namespace rings 75 76 #endif // RINGS_DRIVERS_DEBUG_PIN_H_ 77