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33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <stdint.h>
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#include "esp_flash.h"
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#include "spi_flash_chip_driver.h"
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/**
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* GD (GigaDevice) SPI flash chip_drv, uses all the above functions for its operations. In
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* default autodetection, this is used as a catchall if a more specific chip_drv
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* is not found.
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*
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* Note that this is for GD chips with product ID 40H (GD25Q) and 60H (GD25LQ). The chip diver uses
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* different commands to write the SR2 register according to the chip ID. For GD25Q40 - GD25Q16
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* chips, and GD25LQ chips, WRSR (01H) command is used; while WRSR2 (31H) is used for GD25Q32 -
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* GD25Q127 chips.
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*/
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extern const spi_flash_chip_t esp_flash_chip_gd;
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