[SPI slave] Changing contend of TX buffer

[wiz_yoo]

Dear sir.

I have question of SPI slave communication.

[NRF_SPIS1->TXDPTR] is a point to address of TX buffer. After [spi_slave_buffers_set] is called and SPI transaction complete event will be happened.

After [spi_slave_buffers_set], I want to change content of TX buffer.

Is it possible blew case?

• If SPI transaction happen during changing content of TX buffer, then part of TX buffer is not changed and transfered to SPI Master.

If it is happened, is there solution to prevent?

Best and regards. Thank you.

[Susheel Nuguru]

The TXDPTR and RXDPTR are not double buffered, so you have to wait for the END event before you can update these pointers.