Trying to compile samples/net/wifi/ to test the esp8266 with Nrf52. we have our custom board. but Im' testing using Nrf52840 DK now.
I've this file
in myProject/boards/nrf52840dk_nrf52840.overlay
&uart1{
compatible = "nordic,nrf-uarte";
status = "okay";
current-speed = <115200>;
tx-pin = <34>;
rx-pin = <33>;
esp8266{
compatible = "espressif,esp-at";
label = "esp8266";
status = "okay";
};
};
Followed this guide
https://docs.zephyrproject.org/2.4.0/boards/shields/esp_8266/doc/index.html to connect the wires
currently, the Wifi Module works when I connect it to a USBtoTTL. so the esp8266 is flashed correctly and responding to AT commands.
the sample, never sees a WiFi device attached when I try this command
net iface
I get empty response.
when i tried
wifi scan
I get this
uart:~$ wifi scan
[00:00:05.041,503] <err> os: ***** MPU FAULT ***** [00:00:05.041,534] <err> os: Instruction Access Violation [00:00:05.041,534] <err> os: r0/a1: 0x000044b4 r1/a2: 0x000052a9 r2/a3: 0x00000000 [00:00:05.041,534] <err> os: r3/a4: 0x20004740 r12/ip: 0x00013c1f r14/lr: 0x000054dd [00:00:05.041,564] <err> os: xpsr: 0x60000000 [00:00:05.041,564] <err> os: Faulting instruction address (r15/pc): 0x20004740 [00:00:05.041,564] <err> os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0 [00:00:05.041,564] <err> os: Current thread: 0x20000400 (shell_uart) [00:00:06.019,805] <err> os: Halting system *** Booting Zephyr OS build zephyr-v2.4.0-941-g933b4202355d ***
Currently I'm connecting TX to P1.01 and RX to P1.02. to my TTL. expecting to see some data coming on boot (AT Commands sent to ESP8266)
Not sure what I'm doing wrong
highly appreciating your help
Thank you
