diff options
author | Kévin Redon <kredon@sysmocom.de> | 2019-09-03 21:13:42 +0200 |
---|---|---|
committer | Kévin Redon <kredon@sysmocom.de> | 2019-09-03 21:13:44 +0200 |
commit | bea9406bb11943a7387eeec1b3fc3dadbd396def (patch) | |
tree | be2506dda642c402d3e0279bb81ab0f0676d915a | |
parent | 614ce7a7d83798109d90f6997696212387900526 (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.sch | 19 | ||||
-rw-r--r-- | hardware/pcb/schema/SIMtrace.pdf | bin | 121547 -> 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 Binary files differindex bad3673..ec7f47e 100644 --- a/hardware/pcb/schema/SIMtrace.pdf +++ b/hardware/pcb/schema/SIMtrace.pdf |