nrf8001 setup

[awolverton]

Very new, so please forgive the questions, but...

I have an nrf8001 that I've powered up. After initial power up, I'm able to read the DeviceStartedEvent but the response doesn't seem to follow spec. This is what I see:

BlueLE_Read:(80) 20 81 40 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 READ EVENT: ACI_EVT_DEVICE_STARTED

0x40 0x00 0x40, what are these? They do not seem to be defined in the documentation and I cannot set the SPI interface for read/write after this happens.

[run_ar]

Please make sure you have the correct endianness. The ACI interface is Least significant bit first. You can use the ble_aci_transport_layer_verification template (echo command) to verify your SPI implementation. Please refer to the nRF8001 product specification for more details on the ACI interface.

[run_ar]

I'm sure you "read" the bits in the wrong order. Debug byte should be 0x01 (0x80 reversed). Length is definitely not 20, should be the "reverse" = 0x04. 81 is the same number both ways. 40, should be reversed = 0x02, etc. Check chapter 7.1.2 SPI mode in the product specification.