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feat(bootloader): Add startup function

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Dong Heng
2018-06-19 17:02:34 +08:00
parent c7c96e0066
commit 1cde2f5f81
9 changed files with 129 additions and 65 deletions
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35
components/esp8266/source/startup.c Normal file
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#include "sdkconfig.h"
#include <stdint.h>
#include <stdarg.h>
#include "esp_image_format.h"
#define FLASH_MAP_ADDR 0x40200000
void call_user_start(void)
{
int i;
extern void user_start(void);
esp_image_header_t *head = (esp_image_header_t *)(FLASH_MAP_ADDR + CONFIG_PARTITION_TABLE_CUSTOM_APP_BIN_OFFSET);
esp_image_segment_header_t *segment = (esp_image_segment_header_t *)((uintptr_t)head + sizeof(esp_image_header_t));
for (i = 0; i < 3; i++) {
segment = (esp_image_segment_header_t *)((uintptr_t)segment + sizeof(esp_image_segment_header_t) + segment->data_len);
uint32_t *dest = (uint32_t *)segment->load_addr;
uint32_t *src = (uint32_t *)((uintptr_t)segment + sizeof(esp_image_segment_header_t));
uint32_t size = segment->data_len / sizeof(uint32_t);
while (size--)
*dest++ = *src++;
}
__asm__ __volatile__(
"movi a2, 0x40100000\n"
"wsr a2, vecbase\n");
user_start();
}