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ports_definition.h
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ports_definition.h
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/*
* ports_definition.h - definition of ports pins & so on
*
* Copyright 2014 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#pragma once
#ifndef __PORTS_DEFINITION_H__
#define __PORTS_DEFINITION_H__
#include "stm8l.h"
// macro for using in port constructions like PORT(LED_PORT, ODR) = xx
#define CONCAT(a,b) a##_##b
#define PORT(a,b) CONCAT(a,b)
// on-board LED
#define LED_PORT PC
#define LED_PIN GPIO_PIN2
// UART2_TX
#define UART_PORT PD
#define UART_TX_PIN GPIO_PIN5
/***** Stepper motor *****/
// Clocking
#define STP0_CLK_PORT PC
#define STP0_CLK_PIN GPIO_PIN1
#define STP1_CLK_PORT PD
#define STP1_CLK_PIN GPIO_PIN4
#define STP2_CLK_PORT PD
#define STP2_CLK_PIN GPIO_PIN2
// Direction
#define STP0_DIR_PORT PD
#define STP0_DIR_PIN GPIO_PIN0
#define STP1_DIR_PORT PD
#define STP1_DIR_PIN GPIO_PIN7
#define STP2_DIR_PORT PF
#define STP2_DIR_PIN GPIO_PIN4
// Enable
#define STP0_EN_PORT PE
#define STP0_EN_PIN GPIO_PIN5
#define STP1_EN_PORT PD
#define STP1_EN_PIN GPIO_PIN3
#define STP2_EN_PORT PD
#define STP2_EN_PIN GPIO_PIN1
/** sensors for each motor **/
// SETUP (interrupts: only falling edge; inputs: all with weak pull-up)
#define SETUP_EP(x) SET_EP ## x ## UP()
// motor 0: PC3..PC7, 5EPs
#define SET_EP0UP() do{PORT(PC, CR2) |= 0xfc; PORT(PC, CR1) |= 0xfc; EXTI_CR1 |= 0x20;}while(0)
// motor 1: PB0..PB3, 4EPs
#define SET_EP1UP() do{PORT(PB, CR2) |= 0x0f; PORT(PB, CR1) |= 0x0f; EXTI_CR1 |= 0x08;}while(0)
// motor 2: PB4, PB5, PA1, PA2, 4EPs
#define SET_EP2UP() do{PORT(PB, CR2) |= 0x30; PORT(PA, CR2) |= 0x06; \
PORT(PB, CR1) |= 0x30; PORT(PA, CR1) |= 0x06; EXTI_CR1 |= 0x0a; }while(0)
/*
// motor 0: PC3..PC7, 5EPs
#define SET_EP0UP() do{PORT(PC, CR1) |= 0xfc; }while(0)
// motor 1: PB0..PB3, 4EPs
#define SET_EP1UP() do{PORT(PB, CR1) |= 0x0f; }while(0)
// motor 2: PB4, PB5, PA1, PA2, 4EPs
#define SET_EP2UP() do{PORT(PB, CR1) |= 0x30; PORT(PA, CR1) |= 0x06; }while(0)
*/
// GET VALUE
#define READ_EP(x) GET_EP ## x ## _()
#define GET_EP0_() (( PORT(PC, IDR) >> 3 ))
#define GET_EP1_() (( PORT(PB, IDR) & 0x0f ))
#define GET_EP2_() (( ((PORT(PB,IDR) >> 4) & 0x03) | ((PORT(PA,IDR) << 1) & 0x0c) ))
#endif // __PORTS_DEFINITION_H__