Config of ESP8266 WiFi Module

RE: Config of ESP8266 WiFi Module

RodWatt — Thu, 30 Jun 2022 19:50:01 GMT

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

RE: Config of ESP8266 WiFi Module

RodWatt — Thu, 30 Jun 2022 17:47:38 GMT

Hi,

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

dt-bindings/pinctrl/nrf-pinctrl.h

Still no joy :-(

Rod

RE: Config of ESP8266 WiFi Module

RodWatt — Wed, 29 Jun 2022 07:04:02 GMT

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

RE: Config of ESP8266 WiFi Module

mytzyiay — Tue, 28 Jun 2022 23:57:04 GMT

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?

RE: Config of ESP8266 WiFi Module

RodWatt — Tue, 28 Jun 2022 21:16:54 GMT

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

RE: Config of ESP8266 WiFi Module

RodWatt — Tue, 28 Jun 2022 07:58:16 GMT

Thanks Håkon. When I updated to the new SDK, I also saw problems with another sensor.

Errors when using BME680 Sample Code

I had to add a couple of additional statements into my overlay file.

Maybe it's a similar issue?

RE: Config of ESP8266 WiFi Module

helsing — Mon, 27 Jun 2022 22:05:13 GMT

Hi,

Just letting you know I have started looking at this.

Best regards,

Håkon

RE: Config of ESP8266 WiFi Module

mytzyiay — Sun, 26 Jun 2022 18:32:17 GMT

I don't think it's causing this error, but one thing I had to do when migrating both of my projects from v1.9.1 -> v2.0.0 is update my DTS overlays to use the new pinctrl mechanism instead of tx-pin / rx-pin / etc.

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.0.0/nrf/ug_pinctrl.html

> error: 'DT_N_INST_0_espressif_esp_BUS_P_hw_flow_control' undeclared

This should be an optional property, need to figure out why it's causing a build failure. Maybe ESP_BUS is pointing to the wrong node type, preventing the properties described in zephyr/dts/bindings/serial/uart-controller.yaml from being added?

I would look at the old and new zephyr.dts files side by side to try to figure out what ESP_BUS resolves to.