Config of ESP8266 WiFi Module

[RodWatt]

Hi,

I have previously used the ESP8266 WiFi module and it has worked great. Since I have updated to the latest SDK, I am now seeing problems. I'm guessing something has changed in the config settings?

I build my code using the following

cmake -GNinja -DBOARD=nrf52840dongle_nrf52840 -DCONF_FILE="prj.conf"  .. -DSHIELD=esp_8266

My proj file looks like this

CONFIG_BOARD_HAS_NRF5_BOOTLOADER=n
CONFIG_STDOUT_CONSOLE=y
CONFIG_PRINTK=y
CONFIG_UART_CONSOLE=y

CONFIG_GPIO=y
CONFIG_WIFI=y

CONFIG_EARLY_CONSOLE=y

CONFIG_NETWORKING=y

CONFIG_NET_TX_STACK_SIZE=2048
CONFIG_NET_RX_STACK_SIZE=2048

CONFIG_NET_PKT_RX_COUNT=10
CONFIG_NET_PKT_TX_COUNT=10
CONFIG_NET_BUF_RX_COUNT=20
CONFIG_NET_BUF_TX_COUNT=20
CONFIG_NET_MAX_CONTEXTS=10

CONFIG_NET_IPV4=y
CONFIG_NET_IPV6=n

CONFIG_NET_TCP=y

CONFIG_NET_LOG=y
CONFIG_INIT_STACKS=y

CONFIG_NET_SHELL=y

CONFIG_NET_STATISTICS=y
CONFIG_NET_STATISTICS_PERIODIC_OUTPUT=n

CONFIG_WIFI_LOG_LEVEL_ERR=y
CONFIG_NET_L2_WIFI_SHELL=y

and my overlay file is this

&uart0 {
  compatible = "nordic,nrf-uart"; 
  status = "okay";  
  current-speed = <115200>;
  tx-pin = <24>;
  rx-pin = <22>;

};

&uart1 {
  compatible = "nordic,nrf-uarte";
  status = "okay";
  current-speed = <115200>;
  tx-pin = <45>;
  rx-pin = <47>;
    esp8266{
        compatible = "espressif,esp-at";
        label = "esp8266";
        status = "okay";
	};
};

However, I now get the following errors

[5/276] Generating include/generated/driver-validation.h
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/scripts/gen_kobject_list.py:66: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  if LooseVersion(elftools.__version__) < LooseVersion('0.24'):
[6/276] Generating include/generated/k...r.h, include/generated/otype-to-size.h
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/scripts/gen_kobject_list.py:66: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  if LooseVersion(elftools.__version__) < LooseVersion('0.24'):
[266/276] Building C object zephyr/CMa.../zephyr.dir/drivers/wifi/esp/esp.c.obj
FAILED: zephyr/CMakeFiles/zephyr.dir/drivers/wifi/esp/esp.c.obj 
ccache /opt/nordic/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -DBUILD_VERSION=zephyr-v2.5.0-2316-g36d96d2cd9b9 -DKERNEL -DNRF52840_XXAA -D_FORTIFY_SOURCE=2 -D__PROGRAM_START -D__ZEPHYR__=1 -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/kernel/include -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/arch/arm/include -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/modem -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include -Izephyr/include/generated -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/soc/arm/nordic_nrf/nrf52 -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/lib/util/fnmatch/. -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/modules/hal/cmsis/CMSIS/Core/Include -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/modules/hal/nordic/nrfx -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/modules/hal/nordic/nrfx/drivers/include -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/modules/hal/nordic/nrfx/mdk -I/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/modules/hal_nordic/nrfx/. -isystem /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/lib/libc/minimal/include -isystem /opt/nordic/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/include -isystem /opt/nordic/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/include-fixed -Os -imacros /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/New_Code/ESP8266/build/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -mcpu=cortex-m4 -mthumb -mabi=aapcs -imacros /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-main -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-address-of-packed-member -Wno-unused-but-set-variable -Werror=implicit-int -fno-asynchronous-unwind-tables -fno-pie -fno-pic -fno-strict-overflow -fno-reorder-functions -fno-defer-pop -fmacro-prefix-map=/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/New_Code/ESP8266=CMAKE_SOURCE_DIR -fmacro-prefix-map=/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr=ZEPHYR_BASE -fmacro-prefix-map=/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle=WEST_TOPDIR -ffunction-sections -fdata-sections -std=c99 -nostdinc -MD -MT zephyr/CMakeFiles/zephyr.dir/drivers/wifi/esp/esp.c.obj -MF zephyr/CMakeFiles/zephyr.dir/drivers/wifi/esp/esp.c.obj.d -o zephyr/CMakeFiles/zephyr.dir/drivers/wifi/esp/esp.c.obj -c /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c
In file included from /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/arch/arm/aarch32/arch.h:20,
                 from /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/arch/cpu.h:19,
                 from /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/kernel_includes.h:33,
                 from /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/kernel.h:17,
                 from /Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c:13:
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c: In function 'esp_init':
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:300:40: error: 'DT_N_INST_0_espressif_esp_BUS_P_hw_flow_control' undeclared (first use in this function)
  300 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                                        ^~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:2251:24: note: in definition of macro 'DT_CAT'
 2251 | #define DT_CAT(a1, a2) a1 ## a2
      |                        ^~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c:1124:37: note: in expansion of macro 'DT_PROP'
 1124 |  data->iface_data.hw_flow_control = DT_PROP(ESP_BUS, hw_flow_control);
      |                                     ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1694:25: note: in expansion of macro 'DT_CAT'
 1694 | #define DT_BUS(node_id) DT_CAT(node_id, _BUS)
      |                         ^~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.h:62:17: note: in expansion of macro 'DT_BUS'
   62 | #define ESP_BUS DT_BUS(DT_DRV_INST(0))
      |                 ^~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/sys/util_internal.h:84:26: note: in expansion of macro 'UTIL_PRIMITIVE_CAT'
   84 | #define UTIL_CAT(a, ...) UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
      |                          ^~~~~~~~~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:300:31: note: in expansion of macro 'UTIL_CAT'
  300 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                               ^~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1745:27: note: in expansion of macro 'DT_INST'
 1745 | #define DT_DRV_INST(inst) DT_INST(inst, DT_DRV_COMPAT)
      |                           ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.h:62:24: note: in expansion of macro 'DT_DRV_INST'
   62 | #define ESP_BUS DT_BUS(DT_DRV_INST(0))
      |                        ^~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c:1124:45: note: in expansion of macro 'ESP_BUS'
 1124 |  data->iface_data.hw_flow_control = DT_PROP(ESP_BUS, hw_flow_control);
      |                                             ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:300:40: note: each undeclared identifier is reported only once for each function it appears in
  300 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                                        ^~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:2251:24: note: in definition of macro 'DT_CAT'
 2251 | #define DT_CAT(a1, a2) a1 ## a2
      |                        ^~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c:1124:37: note: in expansion of macro 'DT_PROP'
 1124 |  data->iface_data.hw_flow_control = DT_PROP(ESP_BUS, hw_flow_control);
      |                                     ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1694:25: note: in expansion of macro 'DT_CAT'
 1694 | #define DT_BUS(node_id) DT_CAT(node_id, _BUS)
      |                         ^~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.h:62:17: note: in expansion of macro 'DT_BUS'
   62 | #define ESP_BUS DT_BUS(DT_DRV_INST(0))
      |                 ^~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/sys/util_internal.h:84:26: note: in expansion of macro 'UTIL_PRIMITIVE_CAT'
   84 | #define UTIL_CAT(a, ...) UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
      |                          ^~~~~~~~~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:300:31: note: in expansion of macro 'UTIL_CAT'
  300 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                               ^~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1745:27: note: in expansion of macro 'DT_INST'
 1745 | #define DT_DRV_INST(inst) DT_INST(inst, DT_DRV_COMPAT)
      |                           ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.h:62:24: note: in expansion of macro 'DT_DRV_INST'
   62 | #define ESP_BUS DT_BUS(DT_DRV_INST(0))
      |                        ^~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c:1124:45: note: in expansion of macro 'ESP_BUS'
 1124 |  data->iface_data.hw_flow_control = DT_PROP(ESP_BUS, hw_flow_control);
      |                                             ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:300:40: error: 'DT_N_INST_0_espressif_esp_BUS_P_label' undeclared (first use in this function); did you mean 'DT_N_INST_0_espressif_esp_at'?
  300 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                                        ^~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:2251:24: note: in definition of macro 'DT_CAT'
 2251 | #define DT_CAT(a1, a2) a1 ## a2
      |                        ^~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1701:31: note: in expansion of macro 'DT_PROP'
 1701 | #define DT_BUS_LABEL(node_id) DT_PROP(DT_BUS(node_id), label)
      |                               ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1694:25: note: in expansion of macro 'DT_CAT'
 1694 | #define DT_BUS(node_id) DT_CAT(node_id, _BUS)
      |                         ^~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1701:39: note: in expansion of macro 'DT_BUS'
 1701 | #define DT_BUS_LABEL(node_id) DT_PROP(DT_BUS(node_id), label)
      |                                       ^~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:2047:33: note: in expansion of macro 'DT_BUS_LABEL'
 2047 | #define DT_INST_BUS_LABEL(inst) DT_BUS_LABEL(DT_DRV_INST(inst))
      |                                 ^~~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/sys/util_internal.h:84:26: note: in expansion of macro 'UTIL_PRIMITIVE_CAT'
   84 | #define UTIL_CAT(a, ...) UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
      |                          ^~~~~~~~~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:300:31: note: in expansion of macro 'UTIL_CAT'
  300 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                               ^~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:1745:27: note: in expansion of macro 'DT_INST'
 1745 | #define DT_DRV_INST(inst) DT_INST(inst, DT_DRV_COMPAT)
      |                           ^~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/include/devicetree.h:2047:46: note: in expansion of macro 'DT_DRV_INST'
 2047 | #define DT_INST_BUS_LABEL(inst) DT_BUS_LABEL(DT_DRV_INST(inst))
      |                                              ^~~~~~~~~~~
/Users/Watt/Documents/ZEPHYR_Code/nRF52840_Dongle/zephyr/drivers/wifi/esp/esp.c:1128:9: note: in expansion of macro 'DT_INST_BUS_LABEL'
 1128 |         DT_INST_BUS_LABEL(0));
      |         ^~~~~~~~~~~~~~~~~
[267/276] Linking C static library zephyr/kernel/libkernel.a
ninja: build stopped: subcommand failed.
Parsing image file.

Look forward to your comments, 

Thanks,

Rod

[helsing]

Hi,

Just letting you know I have started looking at this.

Best regards,

Håkon

[RodWatt]

I have tried to update my overlay file, using this example as a template

https://docs.zephyrproject.org/3.1.0/boards/arm/nrf52833dk_nrf52833/doc/index.html

so, overlay file now looks like this

&pinctrl {
   uart1_default: uart1_default {
      group1 {
         psels = <NRF_PSEL(UART_TX, 0, 45)>,
                 <NRF_PSEL(UART_RX, 0, 47)>;
      };
   };
   /* required if CONFIG_PM_DEVICE=y */
   uart1_sleep: uart1_sleep {
      group1 {
         psels = <NRF_PSEL(UART_TX, 0, 45)>,
                 <NRF_PSEL(UART_RX, 0, 47)>;
         low-power-enable;
      };
   };
};

&uart1 {
	compatible = "nordic,nrf-uarte";
	current-speed = <115200>;
	status = "okay";
	pinctrl-0 = <&uart1_default>;
	pinctrl-1 = <&uart1_sleep>;
	pinctrl-names = "default", "sleep";
	esp8266 {
		compatible = "espressif,esp-at";
		label = "esp8266";
		status = "okay";
	};
};

When I build, I get the following error

Error: nrf52840dongle_nrf52840.dts.pre.tmp:547.19-20 syntax error

and this is line 547/548 in that file

psels = <NRF_PSEL(UART_TX, 0, 45)>,
                 <NRF_PSEL(UART_RX, 0, 47)>;

I can't see whats wrong with that line?

Rod

[mytzyiay]

Try NRF_PSEL(UART_TX, 1, 13) and NRF_PSEL(UART_RX, 1, 15)

If that still errors out, your dts might be missing the definitions for NRF_PSEL or UART_* which should come from one of the include files. Is CONFIG_PINCTRL enabled?

[RodWatt]

Hi, thanks for the suggestions. Yes, I have the following line in my config file

CONFIG_PINCTRL=y

and I have tried your suggestion above, NRF_PSEL(UART_TX, 1, 13) and NRF_PSEL(UART_RX, 1, 15) but still receiving the error

Error: nrf52840dongle_nrf52840.dts.pre.tmp:547.19-20 syntax error

Can you elaborate on your comment "your dts might be missing the definitions for NRF_PSEL or UART_* which should come from one of the include files". 

Do you know which include files test refs are in? Where should I add this?

Cheers

Rod

[RodWatt]

Hi,

The only include file I think I need, part from zephyr.h, is 

dt-bindings/pinctrl/nrf-pinctrl.h

Still no joy :-(

Rod

[RodWatt]

I have commented out my entire overlay file to see if I can see any other clues. I see this error

prj.conf:29: warning: attempt to assign the value 'y' to the undefined symbol PINCTRL

I guess if this config is not working, that may explain why I am seeing an error around using the overlay file. Any thought as to why this configuration is not being taken? Do I need to enable something else first?

Rod