83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/* Reflow Oven Controller
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*
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* Copyright (C) 2021 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The Reflow Oven Control Firmware 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 the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @addtogroup hw-version-detect
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* @{
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*/
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#ifndef _HW_VERSION_DETECT_H_
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#define _HW_VERSION_DETECT_H_
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#include <stdint.h>
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/**
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* @brief GPIO Port used for hardware version detection
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*/
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#define HW_REV_DETECT_GPIO GPIOE
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/**
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* @brief RCC Clock register mask used to enable @ref HW_REV_DETECT_GPIO GPIO Port
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*/
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#define HW_REV_DETECT_RCC_FIELD RCC_AHB1ENR_GPIOEEN
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/**
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* @brief Lowest pin on @ref HW_REV_DETECT_GPIO GPIO Port that shall be used to read in the hardware version
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*/
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#define HW_REV_DETECT_PIN_LOW (8U)
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/**
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* @brief Highest pin on @ref HW_REV_DETECT_GPIO GPIO Port that shall be used to read in the hardware version
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*/
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#define HW_REV_DETECT_PIN_HIGH (15U)
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/**
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* @brief PCB/Hardware Revision Type
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*/
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enum hw_revision {
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HW_REV_NOT_DETECTED = 0, /**< @brief The hardware has'nt been detected (yet) */
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HW_REV_ERROR = 1, /**< @brief The hardware revision could not be detected due to an internal error */
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HW_REV_V1_2 = 120, /**< @brief Hardware Revision v1.2 */
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HW_REV_V1_3 = 130, /**< @brief Hardware Revision v1.3 */
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};
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/**
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* @brief This function returns the hardware version of the PCB.
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*
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* This is used to
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* determine the feature set of the hardware. So this firmware can be used on all hardwares.
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*
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* The first hardware revision supported, is: v1.2
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*
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* The function returns the HW revision as an enum hw_revision.
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* For v1.2 the return value is 120 (HW_REV_V1_2).
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* For v1.3 the return value is 130 (HW_REV_V1_3).
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*
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* Other return values are not defined yet.
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*
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* @return Harware revision
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*/
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enum hw_revision get_pcb_hardware_version(void);
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#endif /* _HW_VERSION_DETECT_H_ */
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/** @} */
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