Based on STM32F429 with OV5642 camera sensor becomes two-dimensional code recognition apparatus, two-dimensional code (QR Code) identification algorithm fast, two-dimensional code is also easy to identify a successful deflection, for the Keil MDK within the project source code, OV2640, OV7670 camera and similar modifications added easily, after all, two-dimensional code identification algorithm reference procedure.

Libraries\CMSIS\Device\ST\STM32F4xx\Include\stm32f4xx.h
.........\.....\......\..\.........\.......\system_stm32f4xx.h
.........\.....\......\..\.........\Release_Notes.html
.........\.....\......\..\.........\Source\Templates\arm\startup_stm32f401xx.s
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.........\.....\......\..\.........\......\.........\...\startup_stm32f40_41xxx.s
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.........\.....\......\..\.........\......\.........\gcc_ride7\startup_stm32f401xx.s
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.........\.....\......\..\.........\......\.........\.........\startup_stm32f427_437xx.s
.........\.....\......\..\.........\......\.........\.........\startup_stm32f429_439xx.s
.........\.....\......\..\.........\......\.........\iar\startup_stm32f401xx.s
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.........\.....\......\..\.........\......\.........\...\startup_stm32f411xe.s
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.........\.....\......\..\.........\......\.........\system_stm32f4xx.c
.........\.....\......\..\.........\......\.........\TASKING\cstart_thumb2.asm
.........\.....\......\..\.........\......\.........\.rueSTUDIO\startup_stm32f401xx.s
.........\.....\......\..\.........\......\.........\..........\startup_stm32f40xx.s
.........\.....\......\..\.........\......\.........\..........\startup_stm32f40_41xxx.s
.........\.....\......\..\.........\......\.........\..........\startup_stm32f411xe.s
.........\.....\......\..\.........\......\.........\..........\startup_stm32f427xx.s
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.........\.....\Include\arm_common_tables.h
.........\.....\.......\arm_const_structs.h
.........\.....\.......\arm_math.h
.........\.....\.......\core_cm0.h
.........\.....\.......\core_cm0plus.h
.........\.....\.......\core_cm3.h
.........\.....\.......\core_cm4.h
.........\.....\.......\core_cm7.h
.........\.....\.......\core_cmFunc.h
.........\.....\.......\core_cmInstr.h
.........\.....\.......\core_cmSimd.h
.........\.....\.......\core_sc000.h
.........\.....\.......\core_sc300.h
.........\.....\README.txt
.........\STM32F4xx_StdPeriph_Driver\inc\misc.h
.........\..........................\...\stm32f4xx_adc.h
.........\..........................\...\stm32f4xx_can.h
.........\..........................\...\stm32f4xx_cec.h
.........\..........................\...\stm32f4xx_crc.h
.........\..........................\...\stm32f4xx_cryp.h
.........\..........................\...\stm32f4xx_dac.h
.........\..........................\...\stm32f4xx_dbgmcu.h
.........\..........................\...\stm32f4xx_dcmi.h
.........\..........................\...\stm32f4xx_dma.h
.........\..........................\...\stm32f4xx_dma2d.h
.........\..........................\...\stm32f4xx_exti.h
.........\..........................\...\stm32f4xx_flash.h
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