update simpletest; wrong is not simple.

Author: sommersoft

examples/fram_i2c_simpletest.py

@@ -34,5 +34,5 @@
 ##       problems on memory-constrained platforms.
 
 #values = list(range(100)) # or bytearray or tuple
-#fram[0:100] = values
-#print(fram[0:100])
+#fram[0] = values
+#print(fram[0:99])

examples/fram_spi_simpletest.py

@@ -0,0 +1,29 @@
+## Simple Example For CircuitPython/Python SPI FRAM Library
+
+import board
+import busio
+import digitalio
+import adafruit_fram
+
+## Create a FRAM object.
+spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
+cs = digitalio.DigitalInOut(board.D5)
+fram = adafruit_fram.FRAM_SPI(spi, cs)
+
+## Write a single-byte value to register address '0'
+
+fram[0] = 1
+
+## Read that byte to ensure a proper write.
+## Note: 'read()' returns a bytearray
+
+print(fram[0])
+
+## Or write a sequential value, then read the values back.
+## Note: 'read()' returns a bytearray. It also allocates
+##       a buffer the size of 'length', which may cause
+##       problems on memory-constrained platforms.
+
+#values = list(range(100)) # or bytearray or tuple
+#fram[0] = values
+#print(fram[0:99])