I didn’t post last week because I participated in the ATHENS program. I wasn’t in France and I was pretty busy.
Nevertheless, this week, I continued the ZeROSEro7 project and I’m writing about my advancement in the project.
nRF52 dev kit (BLE) to SX1276 dev kit (LoRa)
After finishing the nRF52_DK environment and successfully close the issue “nrf52 dev kit Fibonacci”, I let Enguerrand to continue BLE development on this dev kit.
In addition, I started to manage about the new SX1276 dev kit received last Wednesday. I read the datasheet, schematic, etc. about SX1276 (LoRa). I got back useful documents from the Internet and from Enguerrand’s works to push into a git repository. I obviously spoke with Enguerrand about his works on the previous LoRa dev kit to save all useful information about his works.
I also connected the SX1276 dev kit to the STM32 dev kit (Olimex) with breadboard jumper cables in SPI communication:
Name PIN | OLIMEX | SX1276 |
VCC | UEXT – 1 | J3 – 4 |
GND | UEXT – 2 | J2 – 7 |
NSS | J3 – 6 (SX1276) | J2 – 3 |
MOSI | UEXT – 8 | J2 – 4 |
MISO | UEXT – 7 | J2 – 5 |
SCK | UEXT – 9 | J2 – 6 |
Olimex
SX1276
I have to verify the right connexion between olimex and sx1276 with example program to flash in the STM32.
Fibonacci on the STM32F4xx Dev Kit
like with nRF52 dev kit (Nordic), I made an environment for the STM32 dev kit (Olimex).
I added ChibiOS in our git repository and to the usb_dev_kit directory, there is the environment to develop on the STM32 dev kit.
With the Makefile, it’s possible to format the code, compile and debug with gdb.
I updated CI tests to use adapted docker image to compile with the last version of arm-none-eabi-gdb.
All CI tests pass, I merged with dev branch and I closed the issue Fibonacci runs on STM32 dev kit.
Schematics and PCB
I’m improving on the mentor software to draw schematic and I have to start a schematic about one device before next week.
Next week
So for the next week, I will continue about SX1276 (LoRa) with Enguerrand’s help and I will start schematic of one device.
Recent Comments