mirror of
https://github.com/silenty4ng/uv-k5-firmware-chinese-lts
synced 2025-01-15 14:54:40 +00:00
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/* Copyright 2023 Dual Tachyon
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* https://github.com/DualTachyon
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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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*/
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#include <stddef.h>
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#include <string.h>
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#include "driver/eeprom.h"
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#include "driver/i2c.h"
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#include "driver/system.h"
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uint8_t WRITE_SIZE = 0;
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void EEPROM_ReadBuffer(uint32_t Address, void *pBuffer, uint8_t Size) {
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if (Size == 0)return;
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I2C_Start();
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uint8_t IIC_ADD = 0xA0 | ((Address / 0x10000) << 1);
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#ifdef ENABLE_EEPROM_4M
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if (Address >= 0x20000)
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{IIC_ADD = 0xA8 | (((Address - 0x20000) / 0x10000) << 1);
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Address-=0x20000;
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}
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#endif
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I2C_Write(IIC_ADD);
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I2C_Write((Address >> 8) & 0xFF);
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I2C_Write((Address >> 0) & 0xFF);
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I2C_Start();
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I2C_Write(IIC_ADD + 1);
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I2C_ReadBuffer(pBuffer, Size);
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I2C_Stop();
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}
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void EEPROM_WriteBuffer(uint32_t Address, const void *pBuffer, uint8_t WRITE_SIZE) {
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if (pBuffer == NULL)
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return;
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uint8_t buffer[128];
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EEPROM_ReadBuffer(Address, buffer, WRITE_SIZE);
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if (memcmp(pBuffer, buffer, WRITE_SIZE) != 0) {
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uint8_t IIC_ADD=0xA0 | ((Address / 0x10000) << 1);
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I2C_Start();
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#ifdef ENABLE_EEPROM_4M
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if(Address>=0x20000)
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IIC_ADD = 0xA8 | (((Address - 0x20000) / 0x10000) << 1);
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#endif
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I2C_Write(IIC_ADD);
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I2C_Write(((Address>=0x20000?Address:Address-0x20000) >> 8) & 0xFF);
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I2C_Write(((Address>=0x20000?Address:Address-0x20000) >> 0) & 0xFF);
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I2C_WriteBuffer(pBuffer, WRITE_SIZE);
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I2C_Stop();
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}
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SYSTEM_DelayMs(8);
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}
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