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cnlohr / nosdk8266

Trying to make ESP8266 projects without a big SDK.
MIT License
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Compiling esp-open-sdk #8

Closed GanesanGuru closed 6 years ago

GanesanGuru commented 6 years ago

Hi fellas,

I just now started working with esp-open-sdk. All I've doubts are basic one's, yet they are vital. I cloned the git and I've ran the "make" command. It generated four files. sdk - soft link for ESP_SDK generated ESP_SDK itself xtensa-lx106-elf user_rf_cal_sector_set.o

What is xtensa-lx106-elf? Is it compiler or a toolchain? Because esp-open-sdk/xtensa-lx106-elf/bin has all in it (compiler,assembler,linker,debugger). SO HAS TO BE A TOOLCHAIN??

Similarly explain what are crosstool-NG,lx106-hal,esp-open-lwip which are downloaded from git hub.

PS:I'm newbie to these knid of things and all. So please suggest me what are the things that I should go through to understand these.

cnlohr commented 6 years ago

You should only need the esp-open-sdk toolset installed to your home folder.

It should have everything to build this project.

What happens when you install it and you type "make" in this project?

GanesanGuru commented 6 years ago

Hi...

Thanks for reaching me. When I installed esp-open-sdk, it is worked fine. The make is successfull and I've added the path to $PATH variable in ~/.profile. When I tried to with the example blinky, the make is failed stating, _blinky.c:1:21: fatal error: etssys.h: No such file or directory

Directory is /home/esp8266/Desktop/ESP_OPEN_SDK/esp-open-sdk/examples/blinky

The ~/.profile contents are............................

if [ -n "$BASH_VERSION" ]; then

include .bashrc if it exists

if [ -f "$HOME/.bashrc" ]; then
. "$HOME/.bashrc"
fi

fi

if [ -d "$HOME/bin" ] ; then PATH="$HOME/bin:$PATH" fi export PATH=/home/esp8266/Desktop/ESP_OPEN_SDK/esp-open-sdk/xtensa-lx106-elf/bin:$PATH

PATH=$PATH:/opt/esp-open-sdk/esptool

The contents of Makefile in example/blinky is as follows

CC = xtensa-lx106-elf-gcc CFLAGS = -I. -mlongcalls LDLIBS = -nostdlib -Wl,--start-group -lmain -lnet80211 -lwpa -llwip -lpp -lphy -lc -Wl,--end-group -lgcc LDFLAGS = -Teagle.app.v6.ld

XTENSA_TOOLS_ROOT ?=/home/esp8266/Desktop/ESP_OPEN_SDK/esp-open-sdk/xtensa-lx106-elf/bin

SDK_BASE ?=/home/esp8266/Desktop/ESP_OPEN_SDK/esp-open-sdk/sdk/

blinky-0x00000.bin: blinky esptool.py elf2image $^

blinky: blinky.o

blinky.o: blinky.c

flash: blinky-0x00000.bin esptool.py write_flash 0 blinky-0x00000.bin 0x10000 blinky-0x10000.bin

clean: rm -f blinky blinky.o blinky-0x00000.bin blinky-0x10000.bin

cnlohr commented 6 years ago

can you send me output from make?

cnlohr commented 6 years ago

Like type make and report output.

GanesanGuru commented 6 years ago

After I entered make:

xtensa-lx106-elf-gcc -I. -mlongcalls -c -o blinky.o blinky.c blinky.c:1:21: fatal error: ets_sys.h: No such file or directory

include "ets_sys.h"

                 ^

compilation terminated. make: *** [blinky.o] Error 1

cnlohr commented 6 years ago

Your compile line should look more like:

~/esp8266/esp-open-sdk/xtensa-lx106-elf/bin/xtensa-lx106-elf-gcc -DPICO66 -flto -DPICONOPRINT -DUSE_I2S -Os -Iinclude -nostdlib -DMAIN_MHZ=320 -mno-serialize-volatile -mlongcalls -g pico.c src/nosdki2s.c src/startup.S src/nosdk8266.c -T ld/linkerscript.ld -T ld/addresses.ld -o image.elf

Or something like that. Also, I don't know what blinky you're looking for.

GanesanGuru commented 6 years ago

I'm unable to follow your compile line. I've followed this video tutorial https://www.youtube.com/watch?v=T-oSjMCmNYk

In that check after 12.45 minutes. He used to build the example blinky program.

The esp-open-sdk has example in it and that directory has an blinky program. I'm executing that program only. The file location is given as,

/home/esp8266/Desktop/ESP_OPEN_SDK/esp-open-sdk/examples/blinky

cnlohr commented 6 years ago

This project has nothing to do with that project or any of the related projects in esp-open-sdk. It only uses the esp-open-sdk compiler.

This project is only for using the ESP8266 is a very unusual way, without any SDK or wifi at all.

GanesanGuru commented 6 years ago

Yes I know that fact. I'm just curious to find out what I've missed. As I'm new to these kind of things I'm not sure where to find the answer. That's all.

cnlohr commented 6 years ago

I'm really not the right person to help you there, since I've never worked with that sort of stuff... try reddit /r/esp8266 or another forum? Sorry :-/