Hi there,
I am interfacing a DAC module through SPI (ECSPI-1) with MPU. The clock is setup at 30MHz and what I have observed between two immediate consecutive calls (without any delay) of spi_write (implemented within kernel device driver for DAC) I am observing a delay of 4us between the clocks of these two transfers. The data that I am writing is 24 bits long and according to my application I need to write this data continuously and more frequently for which I need to bring this delay down to some ~800-900ns.
Below are my queries :
1. If I am not implementing any API calls or specifically adding any delays what is the reason for this idle time of 4us?
2. How can I overcome this delay and meet my requirement?
Any help or suggestions would be greatly appreciated.
Best regards,
Bhavin
IMX8MPLUS
