aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorKévin Redon <kredon@sysmocom.de>2019-09-03 21:13:42 +0200
committerKévin Redon <kredon@sysmocom.de>2019-09-03 21:13:44 +0200
commitbea9406bb11943a7387eeec1b3fc3dadbd396def (patch)
treebe2506dda642c402d3e0279bb81ab0f0676d915a
parent614ce7a7d83798109d90f6997696212387900526 (diff)
schematic: mark USB reset circuit as dot no place
the additional circuit to reset USB (by pulling D+ low) is not required anymore since the USB controller in the SAM3S integrates this capability. the SAM3S-EK Development Board also demonstrates only the inline 27 Ohm termination resistors are required. this change has been tested (behind 2 USB HUBs). the RESET button still works. resetting using DFU into the bootloader and starting the application from the bootloader still works. Change-Id: I648a041f6d3cf456f1783249546078961f85e662
-rw-r--r--hardware/kicad/SIMtrace.sch19
-rw-r--r--hardware/pcb/schema/SIMtrace.pdfbin121547 -> 122601 bytes
2 files changed, 14 insertions, 5 deletions
diff --git a/hardware/kicad/SIMtrace.sch b/hardware/kicad/SIMtrace.sch
index e06df55..0bf7feb 100644
--- a/hardware/kicad/SIMtrace.sch
+++ b/hardware/kicad/SIMtrace.sch
@@ -468,10 +468,11 @@ $Comp
L Device:R R16
U 1 1 4DC7A441
P 2300 900
-F 0 "R16" V 2380 900 50 0000 C CNN
+F 0 "R16" V 2200 900 50 0000 C CNN
F 1 "10K" V 2300 900 50 0000 C CNN
F 2 "SM0603" H 2300 900 60 0001 C CNN
F 3 "" H 2300 900 60 0001 C CNN
+F 4 "DNP" V 2400 900 50 0000 C CNN "Place"
1 2300 900
0 1 1 0
$EndComp
@@ -483,6 +484,7 @@ F 0 "Q2" V 2000 1350 50 0000 R CNN
F 1 "BC847" V 2100 1500 50 0000 R CNN
F 2 "SOT23_BC847" H 2150 1100 60 0001 C CNN
F 3 "" H 2150 1100 60 0001 C CNN
+F 4 "DNP" V 2200 1350 50 0000 C CNN "Place"
1 2150 1100
0 -1 1 0
$EndComp
@@ -546,6 +548,7 @@ F 0 "C5" H 2200 1700 50 0000 L CNN
F 1 "33pF" H 2150 1900 50 0000 L CNN
F 2 "SM0603" H 2150 1800 60 0001 C CNN
F 3 "" H 2150 1800 60 0001 C CNN
+F 4 "DNP" H 2350 1800 50 0000 C CNN "Place"
1 2150 1800
-1 0 0 1
$EndComp
@@ -557,6 +560,7 @@ F 0 "C13" H 2500 2200 50 0000 L CNN
F 1 "15pF" H 2500 2000 50 0000 L CNN
F 2 "SM0603" H 2700 2100 60 0001 C CNN
F 3 "" H 2700 2100 60 0001 C CNN
+F 4 "DNP" H 2500 2100 50 0000 C CNN "Place"
1 2700 2100
1 0 0 -1
$EndComp
@@ -568,6 +572,7 @@ F 0 "C11" H 2900 1900 50 0000 L CNN
F 1 "15pF" H 2900 1700 50 0000 L CNN
F 2 "SM0603" H 2850 1800 60 0001 C CNN
F 3 "" H 2850 1800 60 0001 C CNN
+F 4 "DNP" H 3050 1800 50 0000 C CNN "Place"
1 2850 1800
1 0 0 -1
$EndComp
@@ -1445,10 +1450,11 @@ $Comp
L SIMtrace:SCHOTTKY D1
U 1 1 526C4CBB
P 2150 1450
-F 0 "D1" H 2150 1550 40 0000 C CNN
+F 0 "D1" H 2100 1550 40 0000 C CNN
F 1 "MBR0530" H 2150 1350 40 0001 C CNN
F 2 "SOD123" H 2150 1450 60 0001 C CNN
-F 3 "~" H 2150 1450 60 0000 C CNN
+F 3 "" H 2150 1450 60 0000 C CNN
+F 4 "DNP" H 2250 1550 50 0000 C CNN "Place"
1 2150 1450
1 0 0 -1
$EndComp
@@ -2084,6 +2090,7 @@ F 0 "R1" V 900 700 50 0000 C CNN
F 1 "100K" V 1000 700 50 0000 C CNN
F 2 "SM0603" H 1000 700 60 0001 C CNN
F 3 "" H 1000 700 60 0001 C CNN
+F 4 "DNP" V 1100 700 50 0000 C CNN "Place"
1 1000 700
0 1 1 0
$EndComp
@@ -2382,10 +2389,11 @@ $Comp
L Device:R R3
U 1 1 4DC79ECE
P 1400 1550
-F 0 "R3" H 1250 1500 50 0000 C CNN
-F 1 "1K5" H 1250 1600 50 0000 C CNN
+F 0 "R3" H 1250 1450 50 0000 C CNN
+F 1 "1K5" H 1250 1550 50 0000 C CNN
F 2 "SM0603" H 1400 1550 60 0001 C CNN
F 3 "" H 1400 1550 60 0001 C CNN
+F 4 "DNP" H 1250 1650 50 0000 C CNN "Place"
1 1400 1550
-1 0 0 1
$EndComp
@@ -2397,6 +2405,7 @@ F 0 "Q1" V 950 800 50 0000 R CNN
F 1 "BC847" V 1050 800 50 0000 R CNN
F 2 "SOT23_BC847" H 1150 900 60 0001 C CNN
F 3 "" H 1150 900 60 0001 C CNN
+F 4 "DNP" V 1150 700 50 0000 C CNN "Place"
1 1150 900
0 -1 1 0
$EndComp
diff --git a/hardware/pcb/schema/SIMtrace.pdf b/hardware/pcb/schema/SIMtrace.pdf
index bad3673..ec7f47e 100644
--- a/hardware/pcb/schema/SIMtrace.pdf
+++ b/hardware/pcb/schema/SIMtrace.pdf
Binary files differ