54 lines
1.9 KiB
Markdown
54 lines
1.9 KiB
Markdown
|
Raspberry Pi Model B {#rasppib}
|
||
|
|
====================
|
||
|
|
|
||
|
|
The Raspberry Pi is based on the Broadcom BCM2835 system on a chip,
|
||
|
|
which includes an ARM1176JZF-S 700 MHz processor, VideoCore IV GPU
|
||
|
|
and was originally shipped with 256 megabytes of RAM, later
|
||
|
|
upgraded (Model B & Model B+) to 512 MB.
|
||
|
|
|
||
|
|
Revision Support
|
||
|
|
----------------
|
||
|
|
Currently only rev 1 is supported.
|
||
|
|
|
||
|
|
Interface notes
|
||
|
|
---------------
|
||
|
|
**GPIO** Supported on pin 6,10,11,12,14,15,17,21
|
||
|
|
|
||
|
|
**PWM** Whilst the Raspberry Pi is meant to have 1 PWM channel this is currently not supported.
|
||
|
|
|
||
|
|
**I2C** The blacklist for the kernel module will need to be removed and the `i2c-dev` needs to be loaded.
|
||
|
|
|
||
|
|
**SPI** The blacklist for the kernel module needs to be removed and `spidev` loaded
|
||
|
|
|
||
|
|
Pin Mapping
|
||
|
|
-----------
|
||
|
|
|
||
|
|
| MRAA Number | Physical Pin | Function |
|
||
|
|
|-------------|--------------|----------|
|
||
|
|
| 1 | P1-01 | 3V3 VCC |
|
||
|
|
| 2 | P1-02 | 5V VCC |
|
||
|
|
| 3 | P1-03 | I2C SDA |
|
||
|
|
| 4 | P1-04 | 5V VCC |
|
||
|
|
| 5 | P1-05 | I2C SCL |
|
||
|
|
| 6 | P1-06 | GND |
|
||
|
|
| 7 | P1-07 | GPIO(4) |
|
||
|
|
| 8 | P1-08 | UART TX |
|
||
|
|
| 9 | P1-09 | GND |
|
||
|
|
| 10 | P1-10 | UART RX |
|
||
|
|
| 11 | P1-11 | GPIO(17) |
|
||
|
|
| 12 | P1-12 | GPIO(18) |
|
||
|
|
| 13 | P1-13 | GPIO(21) |
|
||
|
|
| 14 | P1-14 | GND |
|
||
|
|
| 15 | P1-15 | GPIO(22) |
|
||
|
|
| 16 | P1-16 | GPIO(23) |
|
||
|
|
| 17 | P1-17 | 3V3 VCC |
|
||
|
|
| 18 | P1-18 | GPIO(24) |
|
||
|
|
| 19 | P1-19 | SPI MOSI |
|
||
|
|
| 20 | P1-20 | GND |
|
||
|
|
| 21 | P1-21 | SPI MISO |
|
||
|
|
| 22 | P1-22 | GPIO(25) |
|
||
|
|
| 23 | P1-23 | SPI SCL |
|
||
|
|
| 24 | P1-24 | SPI CS0 |
|
||
|
|
| 25 | P1-25 | GND |
|
||
|
|
| 26 | P1-26 | SPI CS1 |
|