SPI FRAM Reading And Writing

We highly encourage everyone to use our new Python package which is packed with features. This library is still supported, but is not recommended for new design.

This example is a very brief demonstration of using SPI to read from and write to a SPI FRAM device. This particular examples uses the 64Kbit FRAM Breakout Board from Adafruit.

from binhoHostAdapter import binhoHostAdapter
from binhoHostAdapter import binhoUtilities

# Change this to match your COMPort
default_commport = "COM11"

print("SPI FRAM Example using Binho Host Adapter")
print("v1.0 -- Jonathan Georgino <[email protected]>")
print

utilities = binhoUtilities.binhoUtilities()
devices = utilities.listAvailableDevices()

if len(devices) == 1:
	COMPORT = devices[0]
	print("Found 1 attached adapter @ " + devices[0])
	print
else:
	COMPORT = default_commport
	print("Found more than 1 attached adapter, using default port " + COMPORT)
	print

print("Opening " + COMPORT + "...")
print

# create the binhoHostAdapter object
hostAdapter = binhoHostAdapter.binhoHostAdapter(COMPORT)

print(hostAdapter.setOperationMode(0, 'SPI'))
print(hostAdapter.setClockSPI(0, 1000000))
print(hostAdapter.setModeSPI(0, 0))
print(hostAdapter.setIOpinMode(0, 'DOUT'))
print(hostAdapter.setIOpinValue(0, 'HIGH'))

print(hostAdapter.beginSPI(0))
print(hostAdapter.setIOpinValue(0, 'LOW'))

print(hostAdapter.transferSPI(0, 0x9f))
print(hostAdapter.transferSPI(0, 0))
print(hostAdapter.transferSPI(0, 0))
print(hostAdapter.transferSPI(0, 0))
print(hostAdapter.transferSPI(0, 0))

print(hostAdapter.setIOpinValue(0, 'HIGH'))
print(hostAdapter.endSPI(0))


print(hostAdapter.clearBuffer(0))
print(hostAdapter.addByteToBuffer(0, 0x9f))

print(hostAdapter.beginSPI(0))
print(hostAdapter.setIOpinValue(0, 'LOW'))

print(hostAdapter.transferBufferSPI(0, 5))

print(hostAdapter.setIOpinValue(0, 'HIGH'))
print(hostAdapter.endSPI(0))

print(hostAdapter.readBuffer(0, 5))