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 parse-bytecode

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esp_init_data.c

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/*

* This file is part of the MicroPython project, http://micropython.org/

*

* The MIT License (MIT)

*

* Copyright (c) 2016 Paul Sokolovsky

*

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

*

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

*

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

* THE SOFTWARE.

*/

#include <stdio.h>

#include "ets_sys.h"

#include "etshal.h"

#include "esp_mphal.h"

#include "user_interface.h"

#include "extmod/misc.h"

NORETURN void call_user_start(void);

void ets_printf(const char *fmt, ...);

extern char flashchip;

static const uint8_t default_init_data[] __attribute__((aligned(4))) = {

0x05, 0x00, 0x04, 0x02, 0x05, 0x05, 0x05, 0x02, 0x05, 0x00, 0x04, 0x05, 0x05, 0x04, 0x05, 0x05,

0x04, 0xfe, 0xfd, 0xff, 0xf0, 0xf0, 0xf0, 0xe0, 0xe0, 0xe0, 0xe1, 0x0a, 0xff, 0xff, 0xf8, 0x00,

0xf8, 0xf8, 0x52, 0x4e, 0x4a, 0x44, 0x40, 0x38, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x04, 0x05,

0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0xe1, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x93, 0x43, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00

};

void firmware_start(void) {

// For SDK 1.5.2, either address has shifted and not mirrored in

// eagle.rom.addr.v6.ld, or extra initial member was added.

SpiFlashChip *flash = (SpiFlashChip*)(&flashchip + 4);

char buf[128];

SPIRead(flash->chip_size - 4 * 0x1000, buf, sizeof(buf));

/*for (int i = 0; i < sizeof(buf); i++) {

static char hexf[] = "%x ";

ets_printf(hexf, buf[i]);

}*/

bool inited = false;

for (int i = 0; i < sizeof(buf); i++) {

if (buf[i] != 0xff) {

inited = true;

break;

}

}

if (!inited) {

static char msg[] = "Writing init data\n";

ets_printf(msg);

SPIRead((uint32_t)&default_init_data - 0x40200000, buf, sizeof(buf));

SPIWrite(flash->chip_size - 4 * 0x1000, buf, sizeof(buf));

}

asm("j call_user_start");

}