add openocd interface config for nrf52

erase_all.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# erase_all.sh — Erase entire Flash on nRF52 via OpenOCD
+
+set -e  # Exit on error
+
+# Default interface is swd0
+INTERFACE="swd0"
+
+# Parse command line argument for SWD interface
+while getopts "i:" opt; do
+  case "$opt" in
+    i)
+      if [[ "$OPTARG" == "swd0" || "$OPTARG" == "swd1" ]]; then
+        INTERFACE="$OPTARG"
+      else
+        echo "Invalid interface: $OPTARG"
+        echo "Usage: $0 [-i swd0|swd1]"
+        exit 1
+      fi
+      ;;
+    *)
+      echo "Usage: $0 [-i swd0|swd1]"
+      exit 1
+      ;;
+  esac
+done
+
+# Run OpenOCD command for full chip erase
+sudo openocd \
+  -f ./raspberrypi-${INTERFACE}.cfg \
+  -f target/nrf52.cfg \
+  -c "init" \
+  -c "nrf52_recover" \
+  -c "reset halt" \
+  -c "nrf5 mass_erase" \
+  -c "shutdown"
+
+echo "✅ Device erase complete."

flash.sh

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+#!/bin/bash
+
+# flash.sh — Flash nRF52 Dongle using OpenOCD via Raspberry Pi SWD
+
+set -e  # Exit on error
+
+# Default values
+INTERFACE="swd0"
+HEX_FILE=""
+
+# Help message
+usage() {
+  echo "Usage: $0 -f <hex_file> [-i swd0|swd1] [-h]"
+  echo
+  echo "Options:"
+  echo "  -f <hex_file>    Path to the HEX file to flash (required)"
+  echo "  -i <interface>   SWD interface to use: swd0 (default) or swd1"
+  echo "  -h               Show this help message and exit"
+  exit 1
+}
+
+# Parse arguments
+while getopts "f:i:h" opt; do
+  case "$opt" in
+    f)
+      HEX_FILE="$OPTARG"
+      ;;
+    i)
+      if [[ "$OPTARG" == "swd0" || "$OPTARG" == "swd1" ]]; then
+        INTERFACE="$OPTARG"
+      else
+        echo "Invalid interface: $OPTARG"
+        usage
+      fi
+      ;;
+    h)
+      usage
+      ;;
+    *)
+      usage
+      ;;
+  esac
+done
+
+# Verify HEX file is provided
+if [[ -z "$HEX_FILE" ]]; then
+  echo "Error: HEX file not specified."
+  usage
+fi
+
+# Check if HEX file exists
+if [[ ! -f "$HEX_FILE" ]]; then
+  echo "Error: HEX file '$HEX_FILE' not found!"
+  exit 1
+fi
+
+# Run OpenOCD flashing command
+sudo openocd \
+  -f ./raspberrypi-${INTERFACE}.cfg \
+  -f target/nrf52.cfg \
+  -c "init" \
+  -c "reset halt" \
+  -c "flash write_image erase $HEX_FILE" \
+  -c "reset run" \
+  -c "shutdown"
+
+echo "✅ Flashing complete."
+      exit 1
+      ;;
+    i)
+      if [[ "$OPTARG" == "swd0" || "$OPTARG" == "swd1" ]]; then
+        INTERFACE="$OPTARG"
+      else
+        echo "Invalid interface: $OPTARG"
+        usage
+      fi
+      ;;
+    h)
+      usage
+      ;;
+    *)
+      usage
+      ;;
+  esac
+done
+
+
+# Run OpenOCD flashing command
+sudo openocd \
+  -f ./raspberrypi-${INTERFACE}.cfg \
+  -f target/nrf52.cfg \
+  -c "init" \
+  -c "reset halt" \
+  -c "flash write_image erase $HEX_FILE" \
+  -c "reset run" \
+  -c "shutdown"
+
+echo "✅ Flashing complete."

raspberrypi-swd0.cfg

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+adapter driver bcm2835gpio
+transport select swd
+adapter gpio swclk 17
+adapter gpio swdio 18 
+#adapter gpio trst 26
+#reset_config trst_only
+
+adapter speed 1000

raspberrypi-swd1.cfg

@@ -0,0 +1,8 @@
+adapter driver bcm2835gpio
+transport select swd
+adapter gpio swclk 24
+adapter gpio swdio 23
+#adapter gpio trst 27
+#reset_config trst_only
+
+adapter speed 1000

readme.md

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+# erase
+bash erase_all.sh -i swd0
+
+# flash
+bash flash.sh -i swd0 -f blinky_nrf52dongl_no_bootloader.hex