From 54acc6776763b259d31ed3cea19fd6e6bc60aacc Mon Sep 17 00:00:00 2001 From: Nicholas Sherlock Date: Fri, 6 Mar 2015 23:44:05 +1300 Subject: [PATCH] Add notes about the performance of Sandisk Ultra cards --- docs/Blackbox.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/Blackbox.md b/docs/Blackbox.md index 23ae41848..05462bf0e 100644 --- a/docs/Blackbox.md +++ b/docs/Blackbox.md @@ -79,11 +79,13 @@ not a guarantee of better performance. - Generic 4GB Class 4 microSDHC card - the rate of missing frames is about 1%, and is concentrated around the most interesting parts of the log! + - Sandisk Ultra 32GB (unlike the smaller 16GB version, this version has poor write latency) ##### microSDHC cards known to have good performance - Transcend 16GB Class 10 UHS-I microSDHC (typical error rate < 0.1%) - Sandisk Extreme 16GB Class 10 UHS-I microSDHC (typical error rate < 0.1%) + - Sandisk Ultra 16GB (it performs only half as well as the Extreme in theory, but still very good) You should format any card you use with the [SD Association's special formatting tool][] , as it will give the OpenLog the best chance of writing at high speed. You must format it with either FAT, or with FAT32 (recommended).