2 files changed, 5 insertions, 2 deletions
diff --git a/.gitignore b/.gitignore
index ee30cb2..2fd72bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 *.log
 *.tmp
 .mypy_cache/
+.gdb_history
 
 /build/
 /build-aux/sources.mk
diff --git a/README.md b/README.md
index 2be841f..501689e 100644
--- a/README.md
+++ b/README.md
@@ -35,13 +35,15 @@ UART:
 - `picocom --baud=115200 /dev/ttyUSB0`
 - `picocom --baud=115200 /dev/ttyACM0`
 
-- `openocd -f interface/cmsis-dap.cfg -f target/rp2040.cfg -c "adapter speed 5000"`
+- `openocd -f interface/cmsis-dap.cfg -c set 'USE_CORE 0' -f target/rp2040.cfg -c "adapter speed 5000"`
+  (Explanation of `USE_CORE`: https://github.com/raspberrypi/debugprobe/issues/45)
 - `arm-none-eabi-gdb ./build/rp2040/cmd/sbc_harness/sbc_harness.elf`
   ```
-  target remote localhost:3333
+  target extended-remote localhost:3333
   monitor reset init
   continue
   ```
+  https://openocd.org/doc/html/General-Commands.html
 
 SWD:
 - https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html