Edit by ST Moderator: This post has been translated from Chinese to comply with the ST Community Terms and Conditions (§10.2).
STM32's TIM triggers SPI's DMA send using NSS when MSSI is used
Using stm32h743, timer TIM12 enable event, spi1 enable NSS, set MSSI to 15 to enable cyclic sending of DMA for SPI and select TRGO of TIM12 as trigger source.
STM32的TIM触发SPI的DMA发送使用NSS时MSSI的问题
使用stm32h743,定时器TIM12使能事件，spi1使能NSS，将MSSI设置为15，使能SPI的DMA的循环发送，并将触发源选择TIM12的TRGO。
The MSSI has an effect when only the first data sent is delayed during the phenomenon, and none of the later ones have an effect.
现象时只有第一个发送的数据会有延时，MSSI有效果，后面的都没有效果。
