70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/* *****************************************************************************
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* The MIT License
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*
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* Copyright (c) 2010 LeafLabs LLC.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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* ****************************************************************************/
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/**
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* @file main.c
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*
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* @brief main loop and calling any hardware init stuff. timing hacks for EEPROM
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* writes not to block usb interrupts. logic to handle 2 second timeout then
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* jump to user code.
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*
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*/
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#include "common.h"
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#include "dfu.h"
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int main() {
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systemReset(); // peripherals but not PC
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setupCLK();
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setupLED();
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setupUSB();
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setupBUTTON();
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setupFLASH();
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strobePin(LED_BANK, LED, STARTUP_BLINKS, BLINK_FAST);
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/* wait for host to upload program or halt bootloader */
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bool no_user_jump = !checkUserCode(USER_CODE_FLASH) || readPin(BUTTON_BANK,BUTTON);
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int delay_count = 0;
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while ((delay_count++ < BOOTLOADER_WAIT)
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|| no_user_jump) {
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strobePin(LED_BANK, LED, 1, BLINK_SLOW);
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if (dfuUploadStarted()) {
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dfuFinishUpload(); // systemHardReset from DFU once done
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}
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}
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if (checkUserCode(USER_CODE_FLASH))
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{
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jumpToUser(USER_CODE_FLASH);
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} else {
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// some sort of fault occurred, hard reset
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strobePin(LED_BANK, LED, 5, BLINK_FAST);
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systemHardReset();
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}
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}
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