X-Git-Url: https://git.ayoreis.com/hackapet/Adafruit_Blinka.git/blobdiff_plain/faaf4b81a82db9e8b87fa23e6cd4040bd6dbde24..41571b65a76c7067786e91f3a696288c96150e06:/src/adafruit_blinka/board/beaglebone_black.py

diff --git a/src/adafruit_blinka/board/beaglebone_black.py b/src/adafruit_blinka/board/beaglebone_black.py
index c744965..36446f7 100644
--- a/src/adafruit_blinka/board/beaglebone_black.py
+++ b/src/adafruit_blinka/board/beaglebone_black.py
@@ -1,4 +1,5 @@
-from adafruit_blinka.microcontroller.beaglebone_black import pin
+"""Pin definitions for the Beaglebone Black."""
+from adafruit_blinka.microcontroller.am335x import pin
 
 # initial pins, to mimic bonescript demo
 P8_3 = pin.P8_3
@@ -73,3 +74,91 @@ LED_USR0 = pin.USR0
 LED_USR1 = pin.USR1
 LED_USR2 = pin.USR2
 LED_USR3 = pin.USR3
+
+# I2C and SPI pins from:
+# src/adafruit_blinka/board/raspi_40pin.py
+# SDA = pin.SDA
+# SCL = pin.SCL
+# CE1 = pin.D7
+# CE0 = pin.D8
+# MISO = pin.D9
+# MOSI = pin.D10
+# SCLK = pin.D11
+# SCK = pin.D11
+# TXD = pin.D14
+# RXD = pin.D15
+# MISO_1 = pin.D19
+# MOSI_1 = pin.D20
+# SCLK_1 = pin.D21
+# SCK_1 = pin.D21
+
+SDA = pin.P9_19
+SCL = pin.P9_20
+
+# Refer to header default pin modes
+# http://beagleboard.org/static/images/cape-headers.png
+#
+# P9_17 (SPI0_CSO => CE0) enables peripheral device
+# P9_18 (SPI0_D1 => MOSI) outputs data to peripheral device
+# P9_21 (SPIO_DO => MISO) receives data from peripheral device
+# P9_22 (SPI0_SCLK => SCLK) outputs clock signal
+#
+# Use config-pin to set pin mode for SPI pins
+# https://github.com/beagleboard/bb.org-overlays/tree/master/tools/beaglebone-universal-io
+# config-pin p9.17 spi_cs
+# config-pin p9.18 spi
+# config-pin p9.21 spi
+# config-pin p9.22 spi_sclk
+#
+CE0 = pin.P9_17
+MOSI = pin.P9_18
+MISO = pin.P9_21
+SCLK = pin.P9_22
+# CircuitPython naming convention for SPI Clock
+SCK = SCLK
+
+# Pins for SPI1
+# refer to:
+# http://beagleboard.org/static/images/cape-headers-spi.png
+#
+# CE1 P9.28 SPI1_CS0
+# MISO_1 P9.29 SPI1_D0
+# MOSI_1 P9.30 SPI1_D1
+# SCLK_1 P9.31 SPI_SCLK
+#
+# SPI1 conflicts with HDMI Audio (McASP)
+#
+# Refer to:
+# https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
+#
+# To Disable HDMI AUDIO, uncomment this line in /boot/uEnv.txt:
+# disable_uboot_overlay_audio=1
+#
+# Set pin modes for SPI1 with:
+#
+# config-pin p9.28 spi1_cs
+# config-pin p9.29 spi1
+# config-pin p9.30 spi1
+# config-pin p9.31 spi_sclk
+CE1 = pin.P9_28
+MOSI_1 = pin.P9_29
+MISO_1 = pin.P9_30
+SCLK_1 = pin.P9_31
+# CircuitPython naming convention for SPI Clock
+SCK_1 = SCLK_1
+
+
+# ordered as spiId, sckId, mosiId, misoId
+spiPorts = (
+    (0, SCLK, MOSI, MISO),
+    (1, SCLK_1, MOSI_1, MISO_1)
+)
+
+# ordered as uartId, txId, rxId
+uartPorts = (
+    (),
+)
+
+i2cPorts = (
+    (2, SCL, SDA),
+)