From 5546727129f264fbd5b42100aecc475a17abc2b7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Mario=20H=C3=BCttel?= Date: Wed, 26 Apr 2017 14:22:49 +0200 Subject: [PATCH] Update page 'M_CAN Driver Usage Device Tree' --- M_CAN Driver Usage Device Tree.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/M_CAN Driver Usage Device Tree.md b/M_CAN Driver Usage Device Tree.md index 7c8b0cc..5f8d044 100644 --- a/M_CAN Driver Usage Device Tree.md +++ b/M_CAN Driver Usage Device Tree.md @@ -48,9 +48,10 @@ It is necessary to configure interrupt line 0 of the M_CAN according to your SoC ----- ### Clocks -The M_CAN needs two clocks. The first clock *hclk* is used for the internal bus interface. Thesecond clock *cclk* is used for the CAN communication. It should be one of the following values: - +The M_CAN needs two clocks. The first clock *hclk* is used for the internal bus interface. The second clock *cclk* is used for the CAN communication. Its value should be one of three clock speeds. These speeds are optimezed to generate common CAN bit rates including CAN FD. +``` cclk = {20 MHz, 40 MHz, 80 MHz} +``` It is important, due to internal clock crossings, that *hclk* is always higher than or equal to *cclk*.