How to flash code into The B-L072Z-LRWAN1 Discovery kit

[PAmey.3]

Hello,

I am very very new with STM32 and I am doing a challenge. I am working on a Macbook Air

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I have at my disposal a

The B-L072Z-LRWAN1 Discovery kit

A st-link

A j-link

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My goal is to build a Gateway-repeater with BL072Z-LRWAN decovery kit, with the following instruction

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For this, I already completed some steps successfuly (with help), but we did do not find how to flash the code into my BL072Z-LRWAN discovery kit.

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Here are the steps

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1. We dowloaded this (for Mac) to ~/Download
2. I dowloaded this and copy the files to /usr/local/gcc_arm
3. I edited ~/.profile and added the line
4. export PATH=$PATH:/usr/local/gcc_arm/gcc-arm-none-eabi-8-2018-q4/bin
5. I cd ~/Download/LoRaWanRelay-master
6. I lunched Make from ~/Download/LoRaWanRelay-master
7. All went fine.

After the Make I got a new folder named ~/Download/LoRaWanRelay-master/build with a lot of different files, with some extention like .lst and .o and .d

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Now, I have to connect my discovery code and flush the code into the board and unfortunately, I

The Make file is big but I past the cod here as a text file here

A colleague suggested me to add this

 
 #######################################
 flash the chip
 
 #######################################
 flash:
 openocd -d0 -f stm32f3.cfg -c “init;reset halt;stm32f3x mass_erase 0;flash write_image build/oibus-mini-mikrobus-stm32-firmware.hex;reset run;shutdown�?

Nut we could not test and it would be great to have you point of and advices

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Would it be possible to have some. instruction?

Many, many thank for your help!

Cheers

Pierrot

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[PAmey.3]

It seam I need to use this

but how to connect, and how to flash ? :smirking_face:

and it look to have an micro usb connectot with the text "USB STLINK". May it be integrated?

[PAmey.3]

I observed an interresting things. I connected the USB cable to the microUSB connector of the B-L072Z-LRWAN1 discovery kit

It was like a USB stick, it maped the board and I can see two files

1. DETAILS.TXT
2. MBED.HTM

The flashing process would be to simply copy/past files?

[Tesla DeLorean]

The Discovery board has a built-in ST-LINK, so the external one is not required.

The mbed drive should accept a firmware binary in the form FW.BIN, in Windows a drag-n-drop operation, or COPY from the console.

It will not accept .HEX or .ELF files, so those would need to be converted with objcopy (as I recall)

[PAmey.3]

Dear Clive,

Thank a lot for your reply!!!

Then If I understand, after I ran the command

make clean all

a folder named 'build' is created. In that folder there is a lot of files witht he extension .o, .lst, .d, but I just observed 4 files:

MiniMouse.bin       

MiniMouse.elf         

MiniMouse.hex 

MiniMouse.map

What's .map, .elf and .hex ?

Then as you write, I should simply copy the bin file to my discovery kit board? ( when i connect my USB cable, my Macbook Air mount a drive, as a USB stick.

Then unmount it, add the battery, and the board works???

(I may have a other question, if above is correct)