Others/CHIP_IO
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fixing issue related to loading the SPI2 overlay, forcing use of the sample provided by NTC in their chip-dt-overlays deb package.

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This commit is contained in:
Robert Wolterman
2017-01-28 02:34:04 +00:00
parent bf27e2feea
commit eafcf0bf69
3 changed files with 10 additions and 18 deletions
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9
CHIP_IO/OverlayManager.py
View File

@ -24,6 +24,7 @@ import time
DEBUG = False
OVERLAYINSTALLPATH = "/lib/firmware/chip_io"
SPIINSTALLPATH = "/lib/firmware/nextthingco/chip"
OVERLAYCONFIGPATH = "/sys/kernel/config/device-tree/overlays"
CUSTOMOVERLAYFILEPATH = ""
@ -41,7 +42,7 @@ _LOADED = {
}
_OVERLAYS = {
"SPI2" : "chip-spi2.dtbo",
"SPI2" : "sample-spi.dtbo",
"PWM0" : "chip-pwm0.dtbo",
"CUST" : ""
}
@ -160,7 +161,11 @@ def load(overlay, path=""):
# SET UP THE OVERLAY PATH FOR OUR USE
if overlay.upper() != "CUST":
opath = OVERLAYINSTALLPATH + "/" + _OVERLAYS[overlay.upper()]
opath = OVERLAYINSTALLPATH
# IF THE OVERLAY IS SPI, USE THE NTC PATH
if overlay.upper() == "SPI2":
opath = SPIINSTALLPATH
opath += "/" + _OVERLAYS[overlay.upper()]
else:
opath = path
if DEBUG:

4
README.rst
View File

@ -9,7 +9,7 @@ Manual::
For Python2.7::
sudo apt-get update
sudo apt-get install git build-essential python-dev python-pip flex bison -y
sudo apt-get install git build-essential python-dev python-pip flex bison chip-dt-overlays -y
git clone https://github.com/atenart/dtc
cd dtc
make
@ -24,7 +24,7 @@ For Python2.7::
For Python3::
sudo apt-get update
sudo apt-get install git build-essential python3-dev python3-pip flex bison -y
sudo apt-get install git build-essential python3-dev python3-pip flex bison chip-dt-overlays -y
git clone https://github.com/atenart/dtc
cd dtc
make

15
test/omtest.py
View File

@ -5,7 +5,7 @@ import os
# ENABLE DEBUG
print("ENABLING OVERLAY MANAGER DEBUG")
OM.enable_debug()
OM.toggle_debug()
# **************** PWM *******************
print("\nIS PWM ENABLED: {0}".format(OM.get_pwm_loaded()))
@ -20,19 +20,6 @@ print("UNLOADING PWM0")
OM.unload("PWM0")
print("IS PWM ENABLED: {0}".format(OM.get_pwm_loaded()))
# **************** I2C-1 *******************
print("\nIS I2C ENABLED: {0}".format(OM.get_i2c_loaded()))
OM.load("I2C1")
print("IS I2C ENABLED: {0}".format(OM.get_i2c_loaded()))
# VERIFY I2C-1 EXISTS
if os.path.exists('/sys/class/i2c-dev/i2c-1'):
print("I2C1 DEVICE EXISTS")
else:
print("I2C1 DEVICE DID NOT LOAD PROPERLY")
print("UNLOADING I2C1")
OM.unload("I2C1")
print("IS I2C ENABLED: {0}".format(OM.get_i2c_loaded()))
# **************** SPI2 *******************
print("\nIS SPI ENABLED: {0}".format(OM.get_spi_loaded()))
OM.load("SPI2")