First implementation

vendor/periph.io/x/periph/host/am335x/doc.go

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+// Copyright 2017 The Periph Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+// Package am335x exposes functionality for the Texas Instruments Sitara AM335x
+// processor family.
+//
+// This processor family is found on the BeagleBone. PRU-ICSS functionality is
+// implemented in package pru.
+//
+// The GPIO pins of the AM335x CPU are grouped into 3 groups of 32 pins: GPIO0,
+// GPIO1, and GPIO2. The CPU documentation refers to GPIO in the form of
+// GPIOx_y. To get the absolute number, as exposed by sysfs, use 32*x+y to get
+// the absolute number.
+//
+// Datasheet
+//
+// Technical Reference Manual
+// https://www.ti.com/lit/ug/spruh73p/spruh73p.pdf
+//
+// Other
+//
+// Marketing page
+// https://www.ti.com/processors/sitara/arm-cortex-a8/am335x/overview.html
+//
+// Family overview
+// https://www.ti.com/lit/ds/symlink/am3359.pdf
+package am335x