Is there any SPI examples by directly accessing the registers?

[Hansome]

Is there any SPI examples by directly accessing the registers?

Based on SDK15.0.2, for NRF52832 or NRF52810,  higher freedom, higher memory utilization.

[Jimmy Wong]

Hi, 

You can use the GPIO emulate the SPI driver in order to save the code size.

Just like this example to use the GPIO to drive SPI flash.

https://github.com/jimmywong2003/nrf5-external-spi-flash-bootloader/tree/master/sdk_mod/spi_driver

[haakonsh]

We do not have any examples for that. You'll have to read the SPIM — Serial peripheral interface master with EasyDMA and SPIM HAL carefully.

[Yuhua]

I have read this documentation, some questions need help: If 

1. Is TXD.MAXCNT maximum length equal to 255 ? If it set value = 200.

2. Is TXD.LIST maximum length equal to 7 ?  If it set value = 2

3. Set TXD.PTR point to an array lists that they are continuous RAM buffer[400] and split them into 2 array lists, 

4. set shortcut END_START

5. Enable and Start 

Does the SPIM will continuous send buffer data serial to MOSI without any pending .. ?