![]() Info : Listening on port 4444 for telnet connections Info : Listening on port 6666 for tcl connections Info : auto-selecting first available session transport "swd". After getting that set up, I fired up OpenOCD: $ openocd -f interface/cmsis-dap.cfg -f target/stm32f0x.cfg Serial Wire Debug (SWD), the natural next step was to hook up a Raspberry Piĭebug Probe to those. Seeing as two of the other pads are connected to SWDIO and SWCLK, used for Flash : Up to 32KiB (size first sector: 4x1024 ) RAM : Up to 4KiB (2048b reserved by bootloader ) This made it easy to pull BOOT0 high, so the MCU boots into its internalīy hooking up a USB to 3.3V TTL device to the USART1 pads, I could dump theįlash: $. Thought was whether I could dump the flash memory to do some static analysis.Īfter quickly skimming MCU docs, and a little bit of multimeter probing, I That looked like an STM32F030C6T6, which is an ARM Cortex M0-based MCU. Whether I could debug it, and perhaps even extend the software to do more usefulįeeling the urge to open it up to poke at the electronics inside of it, I One ended up collecting dust for a while. I ended up buying a second cat door and, lo and behold, no more issues. It hard to get a good night’s sleep when having to get up to let them back in It’s also no surprise that they’d end up making a lot of noise, in turn making This was obviously not much fun for our cats: With the retailer, double-checking the installation and such, it would workįor a little while before it eventually started malfunctioning. ![]() Perhaps even microcontrollers… MicrocontrollersĮarlier this year my family’s cat door broke down. ![]() ![]() Software, to also support instrumenting OS kernels as well as barebone systems. ![]() For quite some years I’ve been dreaming of taking Frida beyond user-space ![]()
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