SPRUII0F May 2019 – June 2024 TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S
FILE: dma_ex1_shared_periph_cpu2.c
This example shows how to initiate a DMA transfer on CPU1 from a shared peripheral that is owned by CPU2. In this specific example, a timer ISR is used on CPU2 to initiate a SPI transfer that triggers the CPU1 DMA. CPU1 DMA then updates the ePWM1 CMPA value for the PWM that the DMA owns. The PWM output can be observed on the GPIO pins. It is recommended to run the c28x1 core first, followed by the C28x2 core.