LpSPI and eDMA performance on rt1180

[SimoneColomboWEG]

Hi,

i'm testing the performance on rt1180 and SPI and DMA and the result is not as aspected, i've checked the example lpspi_edma_b2b_tranfert_master,  this function:

LPSPI_MasterTransferEDMALite(EXAMPLE_LPSPI_MASTER_BASEADDR, &g_m_edma_handle,&masterXfer); 

needs 49us to prepare eDMA to tranfert but i have 125us task and 49 is too high. is there an error on example implementing or this result is correct?

Simone

[EdwinHz · Accepted solution]

Hi @SimoneColomboWEG,

Since the RT1180 is still in preproduction and therefore not yet public, we are not able to provide you with information about this product on the public community forum just yet. Please contact your NXP representative that provided you with this device for the latest information about the RT1180.

Sorry for the inconvenience and thank you for your understanding.

BR,
Edwin.