diff options
| author | Kévin Redon <kredon@sysmocom.de> | 2019-09-03 17:38:54 +0200 |
|---|---|---|
| committer | Kévin Redon <kredon@sysmocom.de> | 2019-09-03 17:40:31 +0200 |
| commit | 2ad8ff810043728162593bcb820c1dec26ec41dd (patch) | |
| tree | cad482d509723020a1ab01573a4820ca5f47925f | |
| parent | 3df5a7f274b188ce9c275bd8017c39f407e6fd43 (diff) | |
schematic: mark R22 as dot no place
R22 is use to pull the FLAGB output of the FPF2109 high since this
is an open-drain output.
but we actually don't read FLAGB do get the error conditions, thus
thus pull-up resistor is not required.
this change has been tested with a real simtrace device.
trace and card emulation worked with a Nokia 3310.
Change-Id: I3dd82864708f1ecb30ddbaa4c60aa600325455e2
| -rw-r--r-- | hardware/kicad/SIMtrace.sch | 2 | ||||
| -rw-r--r-- | hardware/pcb/schema/SIMtrace.pdf | bin | 120898 -> 120980 bytes |
2 files changed, 2 insertions, 0 deletions
diff --git a/hardware/kicad/SIMtrace.sch b/hardware/kicad/SIMtrace.sch index 80a0b1a..a29e041 100644 --- a/hardware/kicad/SIMtrace.sch +++ b/hardware/kicad/SIMtrace.sch @@ -265,6 +265,8 @@ F 0 "R22" V 2400 3750 50 0000 C CNN F 1 "100K" V 2300 3750 50 0000 C CNN F 2 "SM0603" H 2300 3750 60 0001 C CNN F 3 "" H 2300 3750 60 0001 C CNN +F 4 "NP" V 2200 3750 50 0000 C CNN "Place" +F 5 "no needed since we don't read FLAG" V 2300 3750 50 0001 C CNN "Note" 1 2300 3750 0 -1 -1 0 $EndComp diff --git a/hardware/pcb/schema/SIMtrace.pdf b/hardware/pcb/schema/SIMtrace.pdf Binary files differindex fdb468b..a6532d7 100644 --- a/hardware/pcb/schema/SIMtrace.pdf +++ b/hardware/pcb/schema/SIMtrace.pdf |