SPI between two nrf24LE1

[EwanX]

Hi,

i tried to find an example with SPI which describes the connection between two nrf24LE1, one as master and one as slave, but i could not find anything. I need the following two cases:

Case 1. Master sends always data to slave (15-20 bytes), no ACK needed. Slave stores data to a buffer for further processing.

Case 2. Master requires data from slave. Slave holds the data in an array, so master should ask with an index.

Is there any example available which describes the connection, the configuration and the processing of SPI between two nrf24LE1?

Regards EwanX

[Hung Bui]

Hi,

We have an example for SPI master and slave. Maybe it won't fulfill what you asked for but it's a good reference.

SPI with interrupts.zip

[EwanX]

Hi,

thx a lot for the example. I will take a look.

Regards

[EwanX]

One question about the connection between both nrf24LE1. Is it correct that on the SPI master side the MMISO,MMOSI,MSCK and on the SPI slave side the SMISO,SMOSI,SSCK have to be used and connected like the following?

Master Slave

MMISO --- SMISO MMOSI --- SMOSI MSCK --- SSCK

The SCSN is not neccessary, right? EDIT: Looking in your example i see that the SCSN can be used to initialze something when CSN goes low and starting some actions when CSN goes high.

Regards

[Hung Bui]

Yes, it's correct. See here. You need CSN to tell the SPI Slave to listen to the communication.