Difference between revisions of "Beagleboard:BeagleBone cape interface spec"
Lorforlinux (talk | contribs) (→I2C) |
Lorforlinux (talk | contribs) (→SPI) |
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= SPI = | = SPI = | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone bus SPI | ||
+ | |- | ||
+ | ! Bone bus !! BBBWL/BBB !! BBAI !! MOSI !! MISO !! CLK !! CS !! Overlay | ||
+ | |- | ||
+ | !/dev/bone/spi/0.''x'' | ||
+ | | SPI0 || SPI2 || P9.18 || P9.21 || P9.22 || | ||
+ | * P9.17 (CS0) | ||
+ | | | ||
+ | |- | ||
+ | |- | ||
+ | !/dev/bone/spi/1.''x'' | ||
+ | | SPI1 || SPI3 || P9.30 || P9.29 || P9.31 || | ||
+ | * P9.28 (CS0) | ||
+ | * P9.42 (CS1) | ||
+ | | | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | <!-- | ||
Need to add a symlink from /dev/spi to /dev/bone/spi. | Need to add a symlink from /dev/spi to /dev/bone/spi. | ||
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AM5729 SPI3 GPIO7_11 | AM5729 SPI3 GPIO7_11 | ||
* P9.23 - CS | * P9.23 - CS | ||
+ | <!-- | ||
= UART = | = UART = |
Revision as of 02:11, 25 July 2020
This is a list of symlink interfaces based on BeagleBone Cape header pins.[1][2][3]
I2C
Bone bus | BBBWL/BBB | BBAI | SCL | SDA | Overlay |
---|---|---|---|---|---|
/dev/bone/i2c/1 | I2C0 | I2C1 | On-board | On-board | |
/dev/bone/i2c/1 | I2C1 | I2C5 | P9.17 | P9.18 | |
/dev/bone/i2c/2 | I2C2 | I2C4 | P9.19 | P9.20 | |
/dev/bone/i2c/2a | I2C2 | N/A | P9.21 | P9.22 | |
/dev/bone/i2c/3 | I2C1 | I2C3 | P9.24 | P9.26 |
SPI
Bone bus | BBBWL/BBB | BBAI | MOSI | MISO | CLK | CS | Overlay |
---|---|---|---|---|---|---|---|
/dev/bone/spi/0.x | SPI0 | SPI2 | P9.18 | P9.21 | P9.22 |
|
|
/dev/bone/spi/1.x | SPI1 | SPI3 | P9.30 | P9.29 | P9.31 |
|