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f60defc3d3
* flash: mapping definition by sketch at runtime depending on flash chip size and user configuration
39 lines
993 B
C++
39 lines
993 B
C++
/* Emulate the flash read/write HAL */
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#include <stdint.h>
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#include <string.h>
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#include "flash_hal.h"
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extern "C"
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{
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uint32_t s_phys_addr = 0;
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uint32_t s_phys_size = 0;
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uint32_t s_phys_page = 0;
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uint32_t s_phys_block = 0;
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uint8_t* s_phys_data = nullptr;
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}
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int32_t flash_hal_read(uint32_t addr, uint32_t size, uint8_t *dst) {
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memcpy(dst, s_phys_data + addr, size);
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return 0;
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}
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int32_t flash_hal_write(uint32_t addr, uint32_t size, const uint8_t *src) {
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memcpy(s_phys_data + addr, src, size);
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return 0;
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}
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int32_t flash_hal_erase(uint32_t addr, uint32_t size) {
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if ((size & (FLASH_SECTOR_SIZE - 1)) != 0 ||
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(addr & (FLASH_SECTOR_SIZE - 1)) != 0) {
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abort();
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}
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const uint32_t sector = addr / FLASH_SECTOR_SIZE;
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const uint32_t sectorCount = size / FLASH_SECTOR_SIZE;
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for (uint32_t i = 0; i < sectorCount; ++i) {
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memset(s_phys_data + (sector + i) * FLASH_SECTOR_SIZE, 0xff, FLASH_SECTOR_SIZE);
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}
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return 0;
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}
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