Transfer large data 2 board nrf52840

[MainOFF]

Hello! I use 2 board nrf52840! I want to transfer large data ( 1~2MBytes) from board1 to board2 with wire to connect. Can have solution for me? (SPI I2C or uart).

[Sigurd]

Hi,

We have examples for all the different serial interfaces you list(SPI, I2C and uart). You can find them in the SDK folder SDK_folder\examples\peripheral.

You can e.g. program one of the boards with the spi example, and the other board with the spis example. When you connect the boards, you can observe that the board running the slave application receives data from the spi master board.

[MainOFF]

yep. I am working with them now. But

1. It's data rate throughput very low. I only can transmit 255 bytes in each packet.

2. Slave spi can't transmit data to master. ( i want to slave response master when it receive each 10kbytes).

3. If master transmit fast. slave can't receive anything. am I correctly? and have any solution to transmit 1~2 Mbytes from to nrf52 MCU? Please help me!