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init.c
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init.c
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/* Copyright 2023 Dual Tachyon
* https://github.com/DualTachyon
* Copyright 2023 Manuel Jedinger
* https://github.com/manujedi
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
extern uint32_t __bss_start__[];
extern uint32_t __bss_end__[];
extern uint8_t flash_data_start[];
extern uint8_t sram_data_start[];
extern uint8_t sram_data_end[];
void BSS_Init(void);
void DATA_Init(void);
void BSS_Init(void)
{
uint32_t *pBss;
for (pBss = __bss_start__; pBss < __bss_end__; pBss++) {
*pBss = 0;
}
}
void DATA_Init(void)
{
volatile uint32_t *pDataRam = (volatile uint32_t *)sram_data_start;
volatile uint32_t *pDataFlash = (volatile uint32_t *)flash_data_start;
uint32_t Size = (uint32_t)sram_data_end - (uint32_t)sram_data_start;
uint32_t i;
for (i = 0; i < Size / 4; i++) {
*pDataRam++ = *pDataFlash++;
}
}