laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/simtrace2/+/27387 )

Change subject: simtrace: Enable VCC detection via ADC (voltage dependent) ......................................................................

simtrace: Enable VCC detection via ADC (voltage dependent)

SIMtrace should reject any card activation at 1.8V as it is a 3[.3]V device without level shifters. For this, we must include the ADC in determining the VCC voltage.

Change-Id: Ic76f06037590ff1c0dae818d5eb2c2019dd75f2d FIXME: reporting uses raw ADC voltage, not the voltage before divider --- M firmware/libboard/simtrace/include/board.h 1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/simtrace2 refs/changes/87/27387/1

diff --git a/firmware/libboard/simtrace/include/board.h b/firmware/libboard/simtrace/include/board.h index 7cb30b0..d6905ea 100644 --- a/firmware/libboard/simtrace/include/board.h +++ b/firmware/libboard/simtrace/include/board.h @@ -155,3 +155,7 @@ #endif /* SIMtrace board supports man-in-the-middle mode */ //#define HAVE_MITM + +#define DETECT_VCC_BY_ADC +#define VCC_UV_THRESH_1V8 (1500000/2) /* 10k/10k resistive divider halves voltage */ +#define VCC_UV_THRESH_3V (2500000/2) /* 10k/10k resistive divider halves voltage */