nRF Connect SDK v1.9.1 - spi and i2c - easy DMA

Hi,

Please have a look at this guide: TWI/I2C implementation with nRFx TWIS Driver.

Or the existing drivers for SPI and I2C master are already using dma itself?

Yes, the SPIM-driver and TWIM-driver are both using easyDMA.

• Serial Peripheral Interface Master with EasyDMA (SPIM) driver. SPIM-driver documentation
• Two Wire Interface Master with EasyDMA (TWIM) peripheral driver. TWIM-driver documentation.

how exactly they are implementing it?

Please have a brief look at the documentation. Which concepts would you like to learn more about?

Hi,

Please have a look at this guide: TWI/I2C implementation with nRFx TWIS Driver.

Or the existing drivers for SPI and I2C master are already using dma itself?

Yes, the SPIM-driver and TWIM-driver are both using easyDMA.

• Serial Peripheral Interface Master with EasyDMA (SPIM) driver. SPIM-driver documentation
• Two Wire Interface Master with EasyDMA (TWIM) peripheral driver. TWIM-driver documentation.

how exactly they are implementing it?

Please have a brief look at the documentation. Which concepts would you like to learn more about?