本次设计的数控直流电阻箱主要由恒定电流源部分、显示部分、键盘部分、电源部分组成。以STM32单片机为核心控制恒流源，恒流源电路由达林顿三极管、高精度运算放大器、采样电阻等组成。通过键盘输入给定值，经D/A转换器将数字信号转换为模拟信号，控制电流。采用电流反馈电路控制精度，经多次调试改进，实现了直流电阻箱的功能。本次设计的数控直流电阻箱较以往的电阻箱相比，其优点在于可操作性强、精度高、体积小、高效节能等优点。适用于作为直流负载的应用场合。
资源文件列表
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/CORE/core_cm4.h , 109142
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/CORE/core_cm4_simd.h , 22735
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/CORE/core_cmFunc.h , 17146
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/CORE/core_cmInstr.h , 20513
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/CORE/startup_stm32f40_41xxx.s , 29605
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/css_e.css , 3248
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/css_j.css , 3661
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/app1.c , 1063
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/app2.c , 1597
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/app3.c , 3811
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/app4.c , 10365
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f1.png , 1414
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f2.png , 1458
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f3.png , 1039
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f4.png , 2335
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f5.png , 2479
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f6.png , 1436
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/f7.png , 11388
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/funcs.png , 11421
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/layers.png , 2401
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/layers3.png , 2379
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/modules.png , 7932
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/rwtest.png , 19068
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/rwtest2.png , 8153
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/img/rwtest3.png , 3011
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/doc/updates.txt , 5352
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/exfuns/exfuns.c , 3685
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/exfuns/exfuns.h , 1417
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/exfuns/fattester.c , 7722
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/exfuns/fattester.h , 1225
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/exfuns/mycc936.c , 5013
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/00readme.txt , 8279
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/diskio.c , 6281
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/diskio.h , 2567
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/ff.c , 156270
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/ff.h , 13169
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/ffconf.h , 9452
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/integer.h , 706
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/cc932.c , 249488
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/cc936.c , 724232
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/cc949.c , 567684
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/cc950.c , 450696
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/ccsbcs.c , 30169
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/syscall.c , 4705
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FATFS/src/option/unicode.c , 269
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/misc.h , 6924
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_adc.h , 32880
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_can.h , 27318
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_crc.h , 2416
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_cryp.h , 14481
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_dac.h , 14946
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_dbgmcu.h , 4296
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_dcmi.h , 12977
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_dma.h , 28882
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_dma2d.h , 19692
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_exti.h , 8012
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_flash.h , 24467
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_flash_ramfunc.h , 3275
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_fmc.h , 44924
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_fsmc.h , 27181
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_gpio.h , 23548
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_hash.h , 10084
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_i2c.h , 31939
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_iwdg.h , 4323
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_ltdc.h , 21191
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_pwr.h , 7728
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_rcc.h , 30063
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_rng.h , 3958
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_rtc.h , 40546
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_sai.h , 25470
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_sdio.h , 22777
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_spi.h , 21178
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_syscfg.h , 8974
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_tim.h , 51689
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_usart.h , 17935
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/inc/stm32f4xx_wwdg.h , 3542
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/misc.c , 11443
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_adc.c , 69068
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_can.c , 60150
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_crc.c , 3596
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_cryp.c , 35493
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_cryp_aes.c , 58026
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_cryp_des.c , 9822
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_cryp_tdes.c , 10577
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_dac.c , 26804
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_dbgmcu.c , 6809
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_dcmi.c , 18782
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_dma.c , 52917
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_dma2d.c , 27165
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_exti.c , 9828
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_flash.c , 63033
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_flash_ramfunc.c , 5444
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_fmc.c , 56568
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_fsmc.c , 41831
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_gpio.c , 25202
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_hash.c , 26630
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_hash_md5.c , 9594
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_hash_sha1.c , 9793
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_i2c.c , 54393
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_iwdg.c , 9348
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_ltdc.c , 39790
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_pwr.c , 37707
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_rcc.c , 98839
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_rng.c , 14060
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_rtc.c , 102891
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_sai.c , 46411
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_sdio.c , 38957
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_spi.c , 52522
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_syscfg.c , 9575
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_tim.c , 124732
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_usart.c , 57949
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/FWLIB/src/stm32f4xx_wwdg.c , 10492
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/ADC/adc.c , 3140
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/ADC/adc.h , 741
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/DAC/dac.c , 1792
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/DAC/dac.h , 668
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/ELECT/elect.c , 18
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/ELECT/elect.h , 0
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/KEY/key.c , 3105
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/KEY/key.h , 1844
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/LCD/FONT.H , 35016
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/LCD/lcd.c , 83054
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/LCD/lcd.h , 9225
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/LED/led.c , 2020
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/LED/led.h , 879
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/SDIO/sdio_sdcard.c , 64363
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/SDIO/sdio_sdcard.h , 20326
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/SPI/spi.c , 3382
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/SPI/spi.h , 513
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/SRAM/sram.c , 8615
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/SRAM/sram.h , 849
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/VALUE/value.c , 8474
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/VALUE/value.h , 395
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/W25QXX/w25qxx.c , 9168
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/HARDWARE/W25QXX/w25qxx.h , 2137
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/keilkilll.bat , 399
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/MALLOC/malloc.c , 5794
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/MALLOC/malloc.h , 2832
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/adc.crf , 434999
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/adc.d , 1665
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/adc.o , 473436
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/dac.crf , 434208
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/dac.d , 1626
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/dac.o , 471940
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/delay.crf , 434739
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/delay.d , 1706
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/delay.o , 472920
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/diskio.crf , 451937
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/diskio.d , 1913
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/diskio.o , 490256
2017校内竞赛（直流电阻箱）/2017数控直流电阻箱/OBJ/exfuns.crf , 453311
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