Mastering Linux Device Drivers in Automotive Embedded Systems
Join yours Educational open Source community
π Download Now from Google Play
π https://play.google.com/store/apps/details?id=com.piembsystech&pcampaignid=web_share
π Visit for more :
π https://piembsystech.com/linux-device-driver/
#LinuxDeviceDriver #EmbeddedLinux #AutomotiveEmbedded #CANBus #RTOS #DeviceDriverDevelopment #ECUProgramming #FirmwareEngineering #YoctoProject #I2C #SPI #UART #PiEmbSysTech #OpenSourceLearning #SelfLearning #EmbeddedC #LinuxKernel #TechCareer #ADAS #DigitalMobility
![Months of work have gone into decoding the Game Boyβs data bus and creating a schematic for the interface board. Tricking the Game Boy into thinking it was loading a game, while actually displaying incoming speed data. The screenβs low resolution and slow refresh rate rendered it barely readable in a moving vehicle. But [John]βs goal wasnβt practicality β it was just proving it could be done.](https://files.mastodon.social/cache/media_attachments/files/114/251/512/843/600/593/original/d6ffb746df8f3cb3.jpeg)
![[ImageSource: John Sutley]
Showing real-time vehicle speed on the Game Boy sounds like it should be relatively easy, but the iconic game system wasnβt exactly built for such a task. Its 2 MHz CPU and 160Γ144 pixel dot-matrix screen were every kidβs dream in 1989, but using it as a car dashboard is pushing it. To bridge that gap, [John] designed two custom circuit boards.
One interfaces with the Game Boy, intercepting its memory requests and feeding it data from a microcontroller. The other processes the CAN bus signals, translating speed information into a form the Game Boy can display. [John] used inexpensive tools and software to read the CAN bus data, and used GBDK-2020 to write the software in C.](https://files.mastodon.social/cache/media_attachments/files/114/251/512/881/442/605/original/4d34935a472b7bf9.png)