Please confirm whether the "sample app nrf5340_audio" in "v2.8.0" supports "GAIN control" in "SPI+GPIO mode".
the method to enable "GAIN control" in "SPI+GPIO mode" if the sample app "nrf5340_audio" in v2.8.0 supports it.
https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/device_guides/fem/fem_nrf21540_gpio_spi.html
I tried to enable GAIN control in GPIO+SPI mode according to the method described in [reference/link], but I failed.
Thank you for your help.
but enabled GPIO+SPI mode GAIN control based on the procedure you provided, but it did not work as expected. The setting values I tried are listed below, so please check them.
１．ncs\v2.8.0\nrf\boards\shields\nrf21540ek\nrf21540ek_fwd.overlay
&gpio_fwd {
nrf21540-gpio-if {
gpios = <&gpio0 3 0>, /* tx-en-gpios */
<&gpio0 13 0>, /* rx-en-gpios */
<&gpio0 23 0>; /* pdn-gpios */
<&gpio0 23 0>, /* ant-sel-gpios */
<&gpio0 23 0>; /* mode-gpios */
};
nrf21540-spi-if {
gpios = <&gpio1 9 0>, /* cs-gpios */
<&gpio1 7 0>, /* SPIM_SCK */
<&gpio0 21 0>, /* SPIM_MISO */
<&gpio1 5 0>; /* SPIM_MOSI */
};
};
2．ncs\v2.8.0\nrf\boards\shields\nrf21540ek\nrf21540ek.overlay
/ {
nrf_radio_fem: nrf21540_fem {
compatible = "nordic,nrf21540-fem";
tx-en-gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>; /* D5 */
rx-en-gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>; /* D3 */
pdn-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>; /* D9 */
ant-sel-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>; /* D4 */
mode-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>; /* D2 */
spi-if = <&nrf_radio_fem_spi>;
supply-voltage-mv = <3000>;
};
};
fem_spi: &arduino_spi {
status = "okay";
cs-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>; /* D10 */
nrf_radio_fem_spi: nrf21540_fem_spi@0 {
compatible = "nordic,nrf21540-fem-spi";
status = "okay";
reg = <0>;
spi-max-frequency = <8000000>;
};
};
3．ncs\v2.8.0\zephyr\boards\nordic\nrf5340_audio_dk\nrf5340_audio_dk_nrf5340_cpunet-pinctrl.dtsi
spi0_default: spi0_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 1, 7)>,
<NRF_PSEL(SPIM_MISO, 0, 21)>,
<NRF_PSEL(SPIM_MOSI, 1, 5)>;
};
};
spi0_sleep: spi0_sleep {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 1, 7)>,
<NRF_PSEL(SPIM_MISO, 0, 21)>,
<NRF_PSEL(SPIM_MOSI, 1, 5)>;
low-power-enable;
};
};
4．ncs\v2.8.0\zephyr\boards\nordic\nrf5340_audio_dk\nrf5340_audio_dk_nrf5340_cpunet.dts,uart0
&uart0 {
status = "disabled";
};
5．ncs\v2.8.0\zephyr\boards\nordic\nrf5340_audio_dk\nrf5340_audio_dk_nrf5340_cpuapp_common-pinctrl.dtsi
spi4_default: spi4_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 1, 7)>,
<NRF_PSEL(SPIM_MISO, 0, 21)>,
<NRF_PSEL(SPIM_MOSI, 1, 5)>;
};
};
spi4_sleep: spi4_sleep {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 1, 7)>,
<NRF_PSEL(SPIM_MISO, 0, 21)>,
<NRF_PSEL(SPIM_MOSI, 1, 5)>;
low-power-enable;
};
};
6．ncs\v2.8.0\zephyr\boards\nordic\nrf5340_audio_dk\nrf5340_audio_dk_nrf5340_cpuapp_common.dtsi
arduino_spi: &spi4 {
compatible = "nordic,nrf-spim";
status = "okay";
cs-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&spi4_default>;
pinctrl-1 = <&spi4_sleep>;
pinctrl-names = "default", "sleep";
reg_pa_spi_master: spi-dev-a@0 {
reg = <0>;
};
};
7．ncsv2.8.0\nrf\applications\nrf5340_audio\sysbuild\ipc_radio\prj.conf
CONFIG_MPSL_FEM_NRF21540_GPIO_SPI=y
CONFIG_MPSL_FEM_NRF21540_RUNTIME_PA_GAIN_CONTROL=y
-----------------------------------------------------------
The result of the execution is as follows:
-- [00:00:00.004,272] <inf> pa_ctrl: PA start 0x18 dB
-- [00:00:01.007,141] <err> bt_hci_driver: Endpoint binding failed with -11
-- [00:00:01.007,141] <err> bt_hci_core: HCI driver open failed (-11)
-- [00:00:01.007,141] <err> main: ERR_CHK Err_code: [-11] @ line: 369
-- [00:00:01.007,141] <err> os: r0/a1: 0x00000003 r1/a2: 0x00000003 r2/a3: 0x00000002
-- [00:00:01.007,171] <err> os: r3/a4: 0x00000003 r12/ip: 0x00000000 r14/lr: 0x00003829
-- [00:00:01.007,171] <err> os: xpsr: 0x09100000
-- [00:00:01.007,171] <err> os: s[ 0]: 0x00000000 s[ 1]: 0x00000000 s[ 2]: 0x50842500 s[ 3]: 0x00000001
-- [00:00:01.007,171] <err> os: s[ 4]: 0x00052ab0 s[ 5]: 0x00000171 s[ 6]: 0xfffffff5 s[ 7]: 0x000530f8
-- [00:00:01.007,171] <err> os: s[ 8]: 0x200051d8 s[ 9]: 0xffffffff s[10]: 0x20002860 s[11]: 0x00000000
-- [00:00:01.007,202] <err> os: s[12]: 0x00052814 s[13]: 0x2001a228 s[14]: 0x00041121 s[15]: 0x00012e23
-- [00:00:01.007,202] <err> os: fpscr: 0x00000000
-- [00:00:01.007,202] <err> os: Faulting instruction address (r15/pc): 0x00003838
-- [00:00:01.007,232] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
-- [00:00:01.007,232] <err> os: Current thread: 0x200050d0 (main)
-- [00:00:01.007,232] <err> error_handler: Caught system error -- reason 3. Cold rebooting.
#bt_ipc_open failed.
Hi,
The team confirmed that AudioDK cannot support nRF21540-EK in "SPI+GPIO mode" because the SPI on AudioDK is for codec and Netcore cannot use it. Therefore, netcore would get the crash. Please use the GPIO mode for nRF21540-EK.
-Amanda H.
Hi,
The team confirmed that AudioDK cannot support nRF21540-EK in "SPI+GPIO mode" because the SPI on AudioDK is for codec and Netcore cannot use it. Therefore, netcore would get the crash. Please use the GPIO mode for nRF21540-EK.
-Amanda H.
