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= Terminal Driver =
- http://www.tldp.org/LDP/lkmpg/2.6/html/lkmpg.html#AEN121
- [[https://atmega32-avr.com/how-to-super-simple-serial-terminal-using-atmega128/|Fungerande exempel på ATMEL]]
- [[http://linusakesson.net/programming/tty/index.php|The TTY demystified]]
- https://www.linux.it/~rubini/docs/serial/serial.html
- [[https://www.kernel.org/doc/html/v4.17/driver-api/gpio/consumer.html|kernel doc html v4 17 driver api gpio consumer]]
== Terminal Driver ==
-
[[https://en.wikipedia.org/wiki/Linux_console|Wikipedia:Linux console]]
- [[https://www.linuxjournal.com/article/5896|Snabb genomgång]]
=== Oreilly ===
Linux Device Drivers (kapitell 18). Finns hos Lysator, samt som HTML
och PDF.
- https://www.oreilly.com/library/view/linux-device-drivers/0596005903/ch18.html
- https://lwn.net/images/pdf/LDD3/ch18.pdf
== Skärm ==
=== `GTC-16041` ===
- [[https://manualzz.com/doc/17344723/hebei-jiya-electronics-gtc-16041-tr6noc--75-512-11-|Möljgt datablad]]
- http://hugo.hornquist.se/datablad/gtc-16041.pdf
| # | Lvl | Description |
|----|-----|----------------------|
| 1 | | Ground |
| 2 | | Power Logic |
| 3 | | Power LCD |
| 4 | | Register Select (RS)
| 5 | | Read/Write (RW) |
| 6 | | Enable |
| 7 | | Data 0 |
| 8 | | Data 1 |
| 9 | | Data 2 |
| 10 | | Data 3 |
| 11 | | Data 4 |
| 12 | | Data 5 |
| 13 | | Data 6 |
| 14 | | Data 7 |
| 15 | | Backlight |
| 16 | | Backlight |
Med skärmen till höger om headern.
| 4 | 7 |
| 5 | 8 |
| | 9 |
| | 10 |
| | 11 |
| | 12 |
| GND | 13 |
| PWR | 14 |
| RS | 7 |
| RW | 8 |
| | 9 |
| | 10 |
| | 11 |
| | 12 |
| GND | 13 |
| PWR | 14 |
| EN | EN |
RasPi pinout
pin 1:
| 3.3v | 5v |
| 2 | 5V |
| 3 | GND |
| 4 | 14 |
| GND | 15 |
| 17 | 18 |
| 27 | GND |
| 22 | 23 |
| 3.3v | 24 |
| 10 | GND | Away from board
| 9 | 25 |
| 11 | 8 |
| GND | 7 |
| 0 | 1 |
| 5 | GND |
| 6 | 12 |
| 13 | GND |
| 19 | 16 |
| 26 | 20 |
| GND | 21 |
Mapping
| display | pi |
|---------|----|
| 4 | 22 |
| 5 | 0 |
| | |
| 7 | - |
| 8 | - |
| 9 | - |
| 10 | - |
| 11 | 17 |
| 12 | 4 |
| 13 | 3 |
| 14 | 2 |
| | |
| GND | |
| PWR | |
== GPIO ==
- [[https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git|libgpiod]]
`/dev/gpiochip0`
== Datablad ==
https://www.raspberrypi.org/documentation/hardware/raspberrypi/mechanical/rpi_MECH_3bplus.pdf
- `linux/arch/arm/boot/dts/bcm2837-rpi-3-b.dts`
- `/usr/lib/modules/$(uname -r)/kernel`
- '/usr/src/rpi-kernel-headers-$(uname -r)'
compatible field
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