The main control chip is STM32F103VET6, and it drives WS2812B type full color RGB5050 LED through DMA + SPI, a total of 16 LED, and the program has been successfully verified on the development board.

STM32_DMA_SPI_4x4_WS281x
STM32_DMA_SPI_4x4_WS281x\APP
STM32_DMA_SPI_4x4_WS281x\APP\delay
STM32_DMA_SPI_4x4_WS281x\APP\delay\delay.c
STM32_DMA_SPI_4x4_WS281x\APP\delay\delay.h
STM32_DMA_SPI_4x4_WS281x\APP\led
STM32_DMA_SPI_4x4_WS281x\APP\led\bsp_led.c
STM32_DMA_SPI_4x4_WS281x\APP\led\bsp_led.h
STM32_DMA_SPI_4x4_WS281x\APP\spi
STM32_DMA_SPI_4x4_WS281x\APP\spi\bsp_spi.c
STM32_DMA_SPI_4x4_WS281x\APP\spi\bsp_spi.h
STM32_DMA_SPI_4x4_WS281x\APP\sys
STM32_DMA_SPI_4x4_WS281x\APP\sys\sys.c
STM32_DMA_SPI_4x4_WS281x\APP\sys\sys.h
STM32_DMA_SPI_4x4_WS281x\APP\usart
STM32_DMA_SPI_4x4_WS281x\APP\usart\bsp_usart1.c
STM32_DMA_SPI_4x4_WS281x\APP\usart\bsp_usart1.h
STM32_DMA_SPI_4x4_WS281x\APP\ws2811
STM32_DMA_SPI_4x4_WS281x\APP\ws2811\WS2811.c
STM32_DMA_SPI_4x4_WS281x\APP\ws2811\WS2811.h
STM32_DMA_SPI_4x4_WS281x\APP\WS2812B
STM32_DMA_SPI_4x4_WS281x\APP\WS2812B\WS2812B.c
STM32_DMA_SPI_4x4_WS281x\APP\WS2812B\WS2812B.h
STM32_DMA_SPI_4x4_WS281x\Doc
STM32_DMA_SPI_4x4_WS281x\Doc\readme.txt
STM32_DMA_SPI_4x4_WS281x\keilkill.bat
STM32_DMA_SPI_4x4_WS281x\Libraries
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\core_cm3.c
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\core_cm3.h
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_cl.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_hd.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_hd_vl.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_ld.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_ld_vl.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_md.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_md_vl.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\startup\startup_stm32f10x_xl.s
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\stm32f10x.h
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\system_stm32f10x.c
STM32_DMA_SPI_4x4_WS281x\Libraries\CMSIS\system_stm32f10x.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\misc.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_adc.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_bkp.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_can.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_cec.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_crc.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_dac.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_dbgmcu.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_dma.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_exti.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_flash.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_fsmc.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_gpio.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_i2c.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_iwdg.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_pwr.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_rcc.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_rtc.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_sdio.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_spi.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_tim.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_usart.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\inc\stm32f10x_wwdg.h
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\misc.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_adc.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_bkp.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_can.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_cec.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_crc.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_dac.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_dbgmcu.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_dma.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_exti.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_flash.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_fsmc.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_gpio.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_i2c.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_iwdg.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_pwr.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_rcc.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_rtc.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_sdio.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_spi.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_tim.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_usart.c
STM32_DMA_SPI_4x4_WS281x\Libraries\FWlib\src\stm32f10x_wwdg.c
STM32_DMA_SPI_4x4_WS281x\Listing
STM32_DMA_SPI_4x4_WS281x\Listing\Template.map
STM32_DMA_SPI_4x4_WS281x\Output
STM32_DMA_SPI_4x4_WS281x\Output\bsp_led.crf
STM32_DMA_SPI_4x4_WS281x\Output\bsp_led.d
STM32_DMA_SPI_4x4_WS281x\Output\bsp_led.o
STM32_DMA_SPI_4x4_WS281x\Output\bsp_spi.crf
STM32_DMA_SPI_4x4_WS281x\Output\bsp_spi.d
STM32_DMA_SPI_4x4_WS281x\Output\bsp_spi.o

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