From 7dff07b2a890ada8bdce1f4a89f143b621660835 Mon Sep 17 00:00:00 2001
From: aleph <aleph@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Mon, 6 Jun 2011 11:06:59 +0000
Subject: [PATCH] sam3: add twi definitions for SAM3N, SAM3S and SAM3U

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4941 38d2e660-2303-0410-9eaa-f027e97ec537
---
 bertos/cpu/cortex-m3/io/sam3.h     | 22 ++++++++++++++++++++++
 bertos/cpu/cortex-m3/io/sam3_twi.h |  6 ++++++
 2 files changed, 28 insertions(+)

diff --git a/bertos/cpu/cortex-m3/io/sam3.h b/bertos/cpu/cortex-m3/io/sam3.h
index 94a72f77..beba6793 100644
--- a/bertos/cpu/cortex-m3/io/sam3.h
+++ b/bertos/cpu/cortex-m3/io/sam3.h
@@ -280,6 +280,28 @@
 	#define TWI0_TWCK   18
 	#define TWI1_TWD    12
 	#define TWI1_TWCK   13
+#elif CPU_CM3_SAM3N || CPU_CM3_SAM3S
+	#define TWI0_PORT   PIOA_BASE
+	#define TWI1_PORT   PIOB_BASE
+
+	#define TWI0_PERIPH  PIO_PERIPH_A
+	#define TWI1_PERIPH  PIO_PERIPH_A
+
+	#define TWI0_TWD    3
+	#define TWI0_TWCK   4
+	#define TWI1_TWD    4
+	#define TWI1_TWCK   5
+#elif CPU_CM3_SAM3U
+	#define TWI0_PORT   PIOA_BASE
+	#define TWI1_PORT   PIOA_BASE
+
+	#define TWI0_PERIPH  PIO_PERIPH_A
+	#define TWI1_PERIPH  PIO_PERIPH_A
+
+	#define TWI0_TWD    9
+	#define TWI0_TWCK   10
+	#define TWI1_TWD    24
+	#define TWI1_TWCK   25
 #endif
 
 /*\}*/
diff --git a/bertos/cpu/cortex-m3/io/sam3_twi.h b/bertos/cpu/cortex-m3/io/sam3_twi.h
index f9ea16bf..48b0eb6d 100644
--- a/bertos/cpu/cortex-m3/io/sam3_twi.h
+++ b/bertos/cpu/cortex-m3/io/sam3_twi.h
@@ -40,6 +40,12 @@
 #if CPU_CM3_SAM3X
 	#define TWI0_BASE  0x4008C000
 	#define TWI1_BASE  0x40090000
+#elif CPU_CM3_SAM3N || CPU_CM3_SAM3S
+	#define TWI0_BASE  0x40018000
+	#define TWI1_BASE  0x4001C000
+#elif CPU_CM3_SAM3U
+	#define TWI0_BASE  0x40084000
+	#define TWI1_BASE  0x40088000
 #else
 	#error TWI registers not defined for selected CPU
 #endif
-- 
2.25.1