Bluetooth sample iso_receive - cannot build

Question

Hi, 
 Environment: nRF SDK 1.9.1, VS Code 1.66.2 
 Without making any changes, I can build and flash the iso_receive sample but it fails with a -5 error code (EIO) on this line (line 319): 
 err = bt_le_scan_start(BT_LE_SCAN_CUSTOM, NULL); 
 I have spoken with the Zephyr support team and they say that that error is a controller error. So I would like to change from Nordic SoftDevice controller to the Zephyr controller by making the following changes in Kconfig: 
 1. Enabled Bluetooth controller. Software-based BLE link layer was auto selected. 
 
 2. Enabled extended advertising 
 
 3. De-selected 'Use Nordic LLL' 
 
 Saved changes to prj.conf which now looks like this: 
 CONFIG_BT=y
CONFIG_BT_DEBUG_LOG=y
CONFIG_BT_DEVICE_NAME="Test ISO Receive"
CONFIG_BT_ISO_SYNC_RECEIVER=y

CONFIG_BT_CTLR=y
CONFIG_DEBUG_THREAD_INFO=y
CONFIG_DEBUG_OPTIMIZATIONS=y
CONFIG_BT_LLL_VENDOR_NORDIC=n 
 When I build this I get tons of errors. Here are two examples: 
 /opt/nordic/ncs/v1.9.1/zephyr/subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio.c:289:2: error: 'NRF_RADIO' undeclared (first use in this function); did you mean 'NRF_TAD'?

/opt/nordic/ncs/v1.9.1/zephyr/subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio.c:290:17: error: 'RADIO_TXADDRESS_TXADDRESS_Pos' undeclared (first use in this function); did you mean 'TWIM_ADDRESS_ADDRESS_Pos'?
 
 I can successfully build, flash and run other Bluetooth samples e.g. perihperal_hr. 
 Any insights into what I'm doing wrong? 
 Regards, 
 AC

skajam66 · Answer

Hi, 
 I can see an engineer has been assigned but, since posting the comment, I now think that this is a Zephyrcontroller issue so I have raised it with the Zephyr team. I'm going to close this ticket - if the Zephyr team point to it being a Nordic issue, I'll open up a new ticket. 
 Apologies for the confusion. 
 Regards, 
 AC