#!/bin/bash

# LPC55S69-EVK comes with CMSIS-DAP firmware installed.
#
# To use J-Link instead, the official instructions are:
# https://www.segger.com/products/debug-probes/j-link/models/other-j-links/lpcxpresso-on-board/
#
# This is a minimal version, assuming `lpcscrypt` package has been installed,
# `JLINK_OB_IMAGE` is downloaded, and jumper J4 set (forces boot into DFU).
#
# After running the script, remove jumper J4 again, and power-cycle the board.
#
# To revert, set `DEBUGGER_IMAGE` to `CMSIS_DAP_IMAGE` and re-run.

INSTALL_DIR="/usr/local/lpcscrypt-2.1.0_842"
LPCSCRYPT="${INSTALL_DIR}/bin/lpcscrypt"
DFU_IMAGE="${INSTALL_DIR}/bin/LPCScrypt_227.bin.hdr"

JLINK_OB_IMAGE="./Firmware_JLink_LPCXpressoV2_20190404.bin"
CMSIS_DAP_IMAGE="${INSTALL_DIR}/probe_firmware/LPCXpressoV2/LPC432x_IAP_CMSIS_DAP_V5_224.bin"
# DEBUGGER_IMAGE="${CMSIS_DAP_IMAGE}"
DEBUGGER_IMAGE="${JLINK_OB_IMAGE}"

# Load lpcscrypt firmware to RAM (via DFU) and run it
# dfu-util --list 2>/dev/null
dfu-util --device 1fc9:000c --download ${DFU_IMAGE} --reset | tail -n+7 >/dev/null
# Wait for re-enumeration
sleep 3

# Some information (e.g., this is a LPC4322, BankA has size 512KB)
# ${LPCSCRYPT} targetinfo
# ${LPCSCRYPT} querypart

# Flash the J-Link OB
${LPCSCRYPT} program ${DEBUGGER_IMAGE} BANKA
${LPCSCRYPT} verify ${DEBUGGER_IMAGE} BANKA

# Boot back into DFU
${LPCSCRYPT} resetcore