Posted on July 12, 2014 at 03:32hi everyone,how can I use the SPI3 DMA TX,the following is my configuration(it do  not work):RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//IO?? RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);//DMA 2???? //...