STM32ÖÐ,DMAºÍIICºÃÏñ¶¼ÊÇÓÃÀ´´«ÊäÊý¾ÝµÄ,ÓÐÉ¶Çø±ðÂð...

hdma_spi2_rx.Init.Request = DMA_REQUEST_1; hdma_spi2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; hdma_spi2_rx.Init.PeriphInc = DMA_PINC_DISABLE; hdma_spi2_rx.Init.MemInc = DMA_MINC_ENABLE; hdma_spi


stm32ÈçºÎʵÏÖ¶ą̀SPIͨÐÅ

ÔÚSTM32ʵÏÖSPIË«»úͨÐÅʱ£¬ÐèҪעÒ⼸¸ö¹Ø¼üµã£ºÊ×ÏÈ£¬·ÖƵֵµÄÑ¡ÔñÖÁ¹ØÖØÒª¡£SPI1Á¬½ÓÔÚ72MµÄAPB2ÉÏ£¬¶øSPI2Á¬½ÓÔÚ36MµÄAPB1ÉÏ¡£Èç¹ûÈç¹ûϵͳʱÖÓΪ72M£¬SPI1µÄ·ÖƵ...


ʹÓÃDMAÓÅ»¯STM32µÄUART¡¢SPIºÍI2CͨÐÅÐÔÄÜ

ÅäÖÃÊý¾Ý»º³åÇø£ºÎª½ÓÊպͷ¢ËÍÊý¾Ý·ÖÅ仺³åÇø¡£Æô¶¯DMA´«Ê䣺µ÷ÓÃÌØ¶¨º¯ÊýÆô¶¯¡£Ê¾Àý´úÂëÈçÏ£ºÍ¨¹ýÒÔÉÏ·½·¨£¬ÀûÓÃDMAÓÅ»¯STM32µÄUART¡¢SPIºÍI2CͨÐÅ£¬ÄÜÓÐЧÌáÉýÐÔÄܲ¢¼õÇáCPU...


STM32 ´®¿ÚÊÕ·¢Êý¾ÝΪʲôʹÓà DMA?

±¾ÎÄÃæÏò STM32 ÔÚ³¬¸ßËÙ´®¿Ú³¡¾°£¬¸ø³öÒ»Ì×DMA Ë«»º³å + IDLE ÖжϵĽÓÊÕÁ´Â·£¬ÊµÏÖÔÚ4M²¨ÌØÂÊÏÂ385 KB/s Á¬ÐøÍÌÍÂ0¶ª°ü¡£È«ÎÄÏÈÊáÀí´«Í³...


STM32 DMA SPI×Ô·¢×ÔÊÕʱ,Êý¾ÝΪºÎ»á³öÏÖ´íλ»ò¶ªÊ§µÄ...

imico12µÄ²©¿Í °ÑHAL_SPI_Receive_DMA(&hspi1, spi1_rxdata, 8);ÆÁ±Îºó,SPI2½ÓÊÕÕý³£¡£Êý¾Ý´íλÎÊÌâ,SP1·¢ËÍ {0x...ÓÃSTM32F4ϵÁÐ,SPI...


stm32cubemxÅäÖÃusart2ÓÿÕÏÐÖжÏ+DMAÊý¾Ý²»¶¨³¤ÊÕ·¢...

¸ù¾ÝÄúÃèÊöµÄÎÊÌâ,ÄúÓöµ½ÁËÔÚʹÓÃSTM32CubeMXÅäÖÃUSART2½øÐпÕÏÐÖжÏDMAÊý¾Ý²»¶¨³¤ÊÕ·¢Ê±³öÏÖÊý¾Ý¶ªÊ§µÄÇé¿ö¡£¾­¹ý·ÖÎö,¿ÉÄܵÄÔ­ÒòÈçÏÂ: DMA»º³å...


ÈçºÎ¶Ìʱ¼äÄÚÍê³ÉSTM32µ¥Æ¬»ú±ÏÒµÉè¼Æ?

64KB SRAM¡¢512KB FLASH¡¢ 2 ¸ö»ù±¾¶¨Ê±Æ÷¡¢ 4 ¸öͨÓö¨Ê±Æ÷¡¢ 2 ¸ö¸ß¼¶¶¨Ê±Æ÷¡¢ 2 ¸ö DMA ¿ØÖÆÆ÷£¨¹² 12 ¸öͨµÀ£©¡¢ 3 ¸ö SPI¡¢2...


Ïà¹ØËÑË÷

ÈÈÃÅËÑË÷