How to generate DCT(16k) for Photon?

ming · October 26, 2017, 9:24am

I want to generate DCT for Photon so that I can flash whole firmware (bootloader dct system-firmware…) by st-link or j-link.
1.I have read DCT layout part in datasheet.

github.com

particle-iot/firmware/blob/release/stable/platform/MCU/STM32F2xx/SPARK_Firmware_Driver/inc/dct.h

/**
 ******************************************************************************
  Copyright (c) 2014-2015 Particle Industries, Inc.  All rights reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation, either
  version 3 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************
 */
#pragma once

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2.Read whole stm32 flash data out by st-link.
3.But It seems that It is not simple write application_dct_t struct to flash 0x8004000 or 0x800800.
4.I can not find src of function “dct_write_app_data” from system-firmware.

particle and dfu-util always fail and we pay works in minutes.

Please Please help!Thanks!

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How to generate DCT(16k) for Photon?

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