Hi Nordic Team,
We are using the MIMXRT1050-EVK as the host and the nRF7002EK as the Wi-Fi module with an SPI connection. However, we are encountering frequent errors that we are unable to fully understand.
I believe the SPI connection is working correctly since the rpu_init and rpu_enable have been successfully verified. The issue occurs specifically when rpu_validate_comms fails.
I have attached the overlay files and logs for your reference.
We are using nRF Connect version v2.9.1 and the sample from ncs/v2.9.1/nrf/samples/wifi/scan.
00> [00:00:05.014,000] <inf> phy_mc_ksz8081: PHY 0 is down 00> [00:00:05.017,000] <inf> wifi_nrf_bus: SPIM spi@40394000: freq = 8 MHz 00> [00:00:05.017,000] <inf> wifi_nrf_bus: SPIM spi@40394000: latency = 0 00> [00:00:05.021,000] <err> wifi_nrf_bus: Error: RPU comms test: sig failed: expected 0x42000020, got 0xffffffff 00> 00> [00:00:05.022,000] <err> wifi_nrf: zep_shim_bus_qspi_dev_add: RPU enable failed with error -1 00> [00:00:05.022,000] <err> wifi_nrf: nrf_wifi_bus_qspi_dev_add: nrf_wifi_osal_bus_qspi_dev_add failed 00> [00:00:05.022,000] <err> wifi_nrf: nrf_wifi_bal_dev_add: Bus dev_add failed 00> [00:00:05.022,000] <err> wifi_nrf: nrf_wifi_hal_dev_add: nrf_wifi_bal_dev_add failed 00> [00:00:05.022,000] <err> wifi_nrf: nrf_wifi_fmac_dev_add: nrf_wifi_hal_dev_add failed 00> [00:00:05.022,000] <err> wifi_nrf: nrf_wifi_fmac_dev_add_zep: nrf_wifi_fmac_dev_add failed 00> [00:00:05.022,000] <err> wifi_nrf: nrf_wifi_if_start_zep: nrf_wifi_fmac_dev_add_zep failed 00> *** Booting nRF Connect SDK v2.9.1-60d0d6c8d42d *** 00> *** Using Zephyr OS v3.7.99-ca954a6216c9 ***
mimxrt1050_evk_mimxrt1052_hyperflash.overlay6378.nrf7002ek.overlay5873.prj.conf