nrf7002_stm32_qspi

The repo hosts resources for running nRF7002 on STM32 platform.

Contents

HW

Schematic.pdf - The schematic of adaptor

Gerber.zip - Gerber file of adaptor PCB

SW

qspi.patch - patch file to add STM32 QSPI driver

shell.zip - modified shell project to enable STM32 as host

Test

1. Connect nRF7002-EK and NUCLEO-H7A3ZI-Q. The mapping is

   nRF7002-EK < ---------------> STM32 Board

   CLK < ---------------> CN10, Pin15 (PB2)

   CS < ---------------> CN10, Pin13 (PG6)

   IO0 < ---------------> CN10, Pin23 (PD11)

   IO1 < ---------------> CN10, Pin21 (PD12)

   IO2 < ---------------> CN10, Pin25 (PE2)

   IO3 < ---------------> CN10, Pin19 (PD13)

   BUCKEN < ---------------> CN10, Pin14 (PB6)

   IOVDD < ---------------> CN10, Pin16 (PB7)

   IRQ < ---------------> CN10, Pin2 (PG12)

   Other pins of nRF7002EK are floating.

2. Apply patch to sdk-nrf@e4f142f2a19df51b9ae9ff0c32c6a196ced6b25b.

3. Run west update to pull STM32 HAL.

4. Build shell example. If you are using nRF connect VS code extension, it should detect the build configuration from build folder automatically. If the default configuration cannot build, create a new build configuration and select dts32.overlay and prj.conf manually.

5. In console, use shell command to launch zperf test.

Limitations and Known Issues

1. The configuration is optimized for UDP TX. Other test cases may yield poor performance. You may adjust the configuration to meet particular application scenario.

2. APIs for low power operation are not implemented. So you cannot enter low power mode. This must be ensured by adding CONFIG_NRF700X_QSPI_LOW_POWER=n and CONFIG_NRF_WIFI_LOW_POWER=n, otherwise the boot would fail.