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https://github.com/eddyem/STM8_samples.git
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91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*
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* ports_definition.h - definition of ports pins & so on
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*
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* Copyright 2014 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#pragma once
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#ifndef __PORTS_DEFINITION_H__
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#define __PORTS_DEFINITION_H__
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#include "stm8l.h"
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// macro for using in port constructions like PORT(LED_PORT, ODR) = xx
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#define CONCAT(a,b) a##_##b
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#define PORT(a,b) CONCAT(a,b)
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// on-board LED
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#define LED_PORT PC
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#define LED_PIN GPIO_PIN2
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// UART2_TX
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#define UART_PORT PD
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#define UART_TX_PIN GPIO_PIN5
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/***** Stepper motor *****/
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// Clocking
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#define STP0_CLK_PORT PC
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#define STP0_CLK_PIN GPIO_PIN1
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#define STP1_CLK_PORT PD
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#define STP1_CLK_PIN GPIO_PIN4
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#define STP2_CLK_PORT PD
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#define STP2_CLK_PIN GPIO_PIN2
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// Direction
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#define STP0_DIR_PORT PD
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#define STP0_DIR_PIN GPIO_PIN0
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#define STP1_DIR_PORT PD
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#define STP1_DIR_PIN GPIO_PIN7
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#define STP2_DIR_PORT PF
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#define STP2_DIR_PIN GPIO_PIN4
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// Enable
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#define STP0_EN_PORT PE
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#define STP0_EN_PIN GPIO_PIN5
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#define STP1_EN_PORT PD
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#define STP1_EN_PIN GPIO_PIN3
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#define STP2_EN_PORT PD
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#define STP2_EN_PIN GPIO_PIN1
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/** sensors for each motor **/
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// SETUP (interrupts: only falling edge; inputs: all with weak pull-up)
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#define SETUP_EP(x) SET_EP ## x ## UP()
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// motor 0: PC3..PC7, 5EPs
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#define SET_EP0UP() do{PORT(PC, CR2) |= 0xfc; PORT(PC, CR1) |= 0xfc; EXTI_CR1 |= 0x20;}while(0)
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// motor 1: PB0..PB3, 4EPs
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#define SET_EP1UP() do{PORT(PB, CR2) |= 0x0f; PORT(PB, CR1) |= 0x0f; EXTI_CR1 |= 0x08;}while(0)
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// motor 2: PB4, PB5, PA1, PA2, 4EPs
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#define SET_EP2UP() do{PORT(PB, CR2) |= 0x30; PORT(PA, CR2) |= 0x06; \
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PORT(PB, CR1) |= 0x30; PORT(PA, CR1) |= 0x06; EXTI_CR1 |= 0x0a; }while(0)
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/*
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// motor 0: PC3..PC7, 5EPs
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#define SET_EP0UP() do{PORT(PC, CR1) |= 0xfc; }while(0)
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// motor 1: PB0..PB3, 4EPs
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#define SET_EP1UP() do{PORT(PB, CR1) |= 0x0f; }while(0)
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// motor 2: PB4, PB5, PA1, PA2, 4EPs
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#define SET_EP2UP() do{PORT(PB, CR1) |= 0x30; PORT(PA, CR1) |= 0x06; }while(0)
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*/
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// GET VALUE
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#define READ_EP(x) GET_EP ## x ## _()
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#define GET_EP0_() (( PORT(PC, IDR) >> 3 ))
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#define GET_EP1_() (( PORT(PB, IDR) & 0x0f ))
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#define GET_EP2_() (( ((PORT(PB,IDR) >> 4) & 0x03) | ((PORT(PA,IDR) << 1) & 0x0c) ))
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#endif // __PORTS_DEFINITION_H__
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