mirror of
https://github.com/silenty4ng/uv-k5-firmware-chinese-lts
synced 2025-01-15 14:54:40 +00:00
65 lines
1.8 KiB
C
65 lines
1.8 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 P0 = (Address / 0x10000) << 1;
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I2C_Write(0xA0|P0);
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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((0xA0|P0)+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 P0 = (Address / 0x10000) << 1;
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I2C_Start();
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if(Address<0x10000) I2C_Write(0xA0);
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else I2C_Write(0xA0 | P0);
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I2C_Write((Address >> 8) & 0xFF);
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I2C_Write((Address >> 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(6);
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}
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