Can't get SPI1 interrupt (nrf51)

RE: Can't get SPI1 interrupt (nrf51)

Stanislav Silnitskiy — Thu, 10 Mar 2016 09:45:03 GMT

Thank you, Martijn

RE: Can't get SPI1 interrupt (nrf51)

Martijn — Thu, 10 Mar 2016 09:31:29 GMT

Yes, I am sorry. There are more peripherals that use EasyDMA:

RADIO
AAR
CCM
ECB
SPIS

So.. yes. Spi slave can use EasyDMA

RE: Can't get SPI1 interrupt (nrf51)

Stanislav Silnitskiy — Thu, 10 Mar 2016 09:17:21 GMT

ok. And how about SPIS? nRF51822 Product Specification v3.1 suggests SPIS can use EasyDMA.

RE: Can't get SPI1 interrupt (nrf51)

Martijn — Thu, 10 Mar 2016 08:13:54 GMT

Ah, you are using the nrf51. The nrf51 does not have EasyDMA for SPI, only for the RADIO. the nrf51 does not have the PTR, MAXCNT registers etc. those are for the nrf52 see infocenter.nordicsemi.com/.../nRF51_RM_v3.0.pdf for the nrf51 spi specification

RE: Can't get SPI1 interrupt (nrf51)

Stanislav Silnitskiy — Wed, 09 Mar 2016 21:21:35 GMT

Looks like my version of nrf51 doesn't like SPIM mode. Although SPI works fine as master. Are there any checks possible to make to guess whether hardware supports EasyDMA in Master mode?

...

UPDATE I see the revision of my chip is IC_REVISION_NRF51_REV3 with 32 kb RAM and 256 kb Flash...

infocenter.nordicsemi.com/.../nRF51422_nRF51822_ic_rev_sdk_ sd_comp_matrix.html

denotes it is compatible with SDK ver 10.0, which I use