[FL-1190] Enable OTG pullup for reading and writing keys (#423)

2 files changed, 4 insertions, 0 deletions

diff --git a/applications/ibutton/helpers/key-reader.cpp b/applications/ibutton/helpers/key-reader.cpp
index 0afd5f4b..ed20e227 100644
--- a/applications/ibutton/helpers/key-reader.cpp
+++ b/applications/ibutton/helpers/key-reader.cpp
@@ -178,10 +178,12 @@ void KeyReader::switch_mode_if_needed() {
 }
 
 void KeyReader::start() {
+    api_hal_power_enable_otg();
     switch_to(ReadMode::CYFRAL_METAKOM);
 }
 
 void KeyReader::stop() {
+    api_hal_power_disable_otg();
     onewire_master->stop();
     stop_comaparator();
 }
diff --git a/applications/ibutton/helpers/key-writer.cpp b/applications/ibutton/helpers/key-writer.cpp
index fd587e85..757cd2f8 100644
--- a/applications/ibutton/helpers/key-writer.cpp
+++ b/applications/ibutton/helpers/key-writer.cpp
@@ -10,10 +10,12 @@ KeyWriter::Error KeyWriter::write(iButtonKey* key) {
 }
 
 void KeyWriter::start() {
+    api_hal_power_enable_otg();
     onewire_master->start();
 }
 
 void KeyWriter::stop() {
+    api_hal_power_disable_otg();
     onewire_master->stop();
 }