From cae74e11630fd2141b83f5b54184ba06a05a1918 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Joachim=20Stro=CC=88mbergson?= Date: Wed, 12 Aug 2015 13:59:09 +0200 Subject: Changing type of README to md in order for it to be picked up by the wiki builder. --- README.md | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 README.md (limited to 'README.md') diff --git a/README.md b/README.md new file mode 100644 index 0000000..50efc6d --- /dev/null +++ b/README.md @@ -0,0 +1,20 @@ + +External Avalanche Entropy +-------------------------- +This is a test project of an entropy provider that collects entropy from +an avalanche noise based source. + +The design expects a one bit digital input noise signal. The collector +observes positive flank events in the input noise signal and measures the +time between these events using a counter. The counter is free running +and increases once for each clock cycle (currently running av 50 MHz). + +The LSB of the counter is added to a 32-bit entropy register at each +event. + +As debug output the entropy register is sampled at a given rate +(currently a few times per second). The debug output is connected to LED +on the FPGA development board. + +The project also contains project files, pin assignments and clock +definition neded to implement the design on a TerasIC DE0-Nano board. -- cgit v1.2.3