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-rw-r--r--spi/max7219/README31
-rw-r--r--spi/max7219/max7219.srbin0 -> 6246 bytes
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diff --git a/spi/max7219/README b/spi/max7219/README
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+-------------------------------------------------------------------------------
+Maxim MAX7219
+-------------------------------------------------------------------------------
+
+This is a set of example captures of a Maxim MAX7219 LED display driver.
+
+Details:
+https://www.maximintegrated.com/en/products/MAX7219
+
+
+Logic analyzer setup
+--------------------
+
+The logic analyzer used was a Saleae Logic clone (at 2MHz):
+
+ Probe MAX7219
+ -------------------
+ 0 MISO (not used by this chip)
+ 1 CS#
+ 2 MOSI
+ 3 CLK
+
+
+Data
+----
+
+The capture was generated using PulseView.
+
+The chip was driven by an FTDI FT232H connected to USB, using a custom Perl
+program to drive the signals, including the intentional error cases.
+
diff --git a/spi/max7219/max7219.sr b/spi/max7219/max7219.sr
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