Using JLinkExe with NXP S32K148
$ sudo JLinkExe SEGGER J-Link Commander V7.92c (Compiled Aug 30 2023 14:58:04) DLL version V7.92c, compiled Aug 30 2023 14:57:42 Connecting to J-Link via USB...Updating firmware: J-Link V11 compiled...
View ArticleFixing b43 driver for BCM4311 on Ubuntu not loading automatically
I installed Ubuntu 22.04 into an old Dell D620 that I bought last year just to run DOS and use the parallel port (in the Dock station) to remove the password from some Motorola Pagers. Initially the...
View ArticleUrsa Major rockets
Today while watching Every Day Astronaut visit to Ursa Major rocket factory I discovered they at using GRCop-42 copper alloy to create the rocket chamber.
View ArticleMeadow version mismatch, how to fix?
Today I compiled the Meadow version 1.3.5.5 and when trying to deploy an app I got this error: Meadow StdInfo: Mono will not start - version mismatch: Meadow.OS version 1.3.4.0, Mono version 1.3.5.5,...
View ArticleNuttX on STM32F401 crashing
I was porting NuttX to a STM32F401 board and I was getting this error: ABCDF mm_initialize: Heap: start=0x200017b0 size=92240 mm_addregion: Region 1: base=0x200017b0 size=92240 irq_unexpected_isr:...
View ArticleOpen-source Rocket simulators
openMotor: https://github.com/reilleya/openMotor OpenRocket: https://openrocket.info
View ArticleA Drone Flight Controller in MicroPython
https://timhanewich.medium.com/taking-flight-with-the-raspberry-pi-pico-micropython-diy-quadcopter-drone-61ed4f7ee746
View ArticleFixing NuttX compilation errors to Meadow F7Micro
These were the errors I was receiving: CC: chip/stm32_allocateheap.c chip/stm32_allocateheap.c:122:6: warning: #warning "CONFIG_HEAP2_BASE or CONFIG_HEAP2_SIZE are zero. No HEAP2 enabled!" [-Wcpp]122...
View ArticleEasy and simple way to create screencast GIFs on Linux
You can use the Peek program to record and create a GIF for you. First install Peek the usual way: $ sudo apt install peek Run the Peek application and resize it to be just cover the window or area...
View ArticleHP Jornada running Linux
Really cool: https://raymii.org/s/blog/My_24_year_old_HP_Jornada_can_do_things_your_modern_iPhone_still_cant_do.html
View ArticleHow to patch Android app to sniff its HTTPS traffic with self-signed certificate
Nice way to sniff communication between Android application and a server to implement MITM. This way we can get the firmware downloaded from a vendor during the firmware update process....
View ArticleCompiling NuttX to Atmel AVR32 Mcuzone UC3B-CPU board
I’m trying to get NuttX working on AVR32 (Mcuzone UC3b-CPU: http://www.mcuzone.com/product/UC3B/AT32UC3B-CPU_UG_V1_B080815.pdf ) and decided to report my (lack of) progress until now! First we need to...
View ArticleTrying to use versaloon and vsprog to flash my MCUZone UC3B-CPU
I’m trying to use versaloon programmer and its vsprog tool to flash a firmware in the AT32UC3B0256 microcontroller. The first I had to remove some conditional compilation from vsprog source code to...
View ArticleHow to format SDCard on NuttX terminal
Today during my weekly NuttX Channel Live about porting NuttX to STM32F401RC-RS485 board we explained how to add support to SDCard and I commented that we could use the mkfatfs command to format the...
View ArticleUsing the dfu-programmer with MCUZone UC3B-CPU board
Finally I got dfu-programmer working: $ sudo dfu-programmer at32uc3b0256 get Bootloader Version: 0x02 (2) $ sudo dfu-programmer at32uc3b0256 erase $ sudo dfu-programmer at32uc3b0256 getfuse Locked...
View ArticleGazebo sim, error DiffDrive plugin
Probably we are following the Gazebo SIM tutorial “Moving the robot” and added this plugin config to your XML file: <plugin filename="gz-sim-diff-drive-system"...
View ArticleAnti-Freezing Protein
Many sites published about the ocean pout (Zoarces americanus) anti-freezing blood and how genetic engineering was used to sequence its Anti-Freezing Protein (AFP) to use for biotic conservation and...
View ArticleUsing avrdude and USBasp ISP to read and flash Atmega128 from BK-AVR128 board
Getting the information from the board: $ avrdude -c usbasp -p atmega128 -tavrdude: warning: cannot set sck period. please check for usbasp firmware update.avrdude: AVR device initialized and ready to...
View ArticleCompiling NuttX RTOS to Atmega128 board
I want to port NuttX to BK-AVR128 powered by Atmega128AU chip, so I used the amber board as starting point just modifying the amber/include/board.h clock frequency to 8MHz. First I installed the GCC...
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