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feat(e3650): add platform e3650 with single and dual baremetal demo.
update(baremetal): add clean before build to avoid linking with stale objects.
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‎demos/baremetal+baremetal/configs/e3650.c‎

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/**
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* SPDX-License-Identifier: Apache-2.0
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* Copyright (c) Bao Project and Contributors. All rights reserved.
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*/
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#include <config.h>
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#define E3650_UART_BASE 0xF8D60000
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#define E3650_GICD_BASE 0xF4000000
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#define E3650_GICR_BASE 0xF4100000
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#define VM0_IRAM_BASE 0x00B00000
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#define VM0_IRAM_SIZE 0x00100000
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#define VM1_IRAM_BASE 0x00C00000
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#define VM1_IRAM_SIZE 0x00100000
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VM_IMAGE(guest_image0, XSTR(BAO_DEMOS_WRKDIR_IMGS/baremetal_vm0.bin))
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VM_IMAGE(guest_image1, XSTR(BAO_DEMOS_WRKDIR_IMGS/baremetal_vm1.bin))
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struct config config = {
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.vmlist_size = 2,
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.vmlist = (struct vm_config[]) {
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{
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.image = VM_IMAGE_BUILTIN(guest_image0, VM0_IRAM_BASE),
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.entry = VM0_IRAM_BASE,
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.cpu_affinity = 0x3, // Cores 0 and 1 (0011)
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.platform = {
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.cpu_num = 2,
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.region_num = 1,
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.regions = (struct vm_mem_region[]) {
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{
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.base = VM0_IRAM_BASE,
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.size = VM0_IRAM_SIZE,
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},
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},
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.dev_num = 1,
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.devs = (struct vm_dev_region[]) {
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{
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.pa = E3650_UART_BASE,
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.va = E3650_UART_BASE,
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.size = 0x10000,
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.interrupt_num = 1,
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.interrupts = (unsigned[]) { 114 },
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},
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},
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.arch = {
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.gic = {
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.gicd_addr = E3650_GICD_BASE,
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.gicr_addr = E3650_GICR_BASE,
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},
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},
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},
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},
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{
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.image = VM_IMAGE_BUILTIN(guest_image1, VM1_IRAM_BASE),
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.entry = VM1_IRAM_BASE,
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.cpu_affinity = 0xC, // Cores 2 and 3 (1100)
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.platform = {
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.cpu_num = 2,
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.region_num = 1,
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.regions = (struct vm_mem_region[]) {
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{
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.base = VM1_IRAM_BASE,
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.size = VM1_IRAM_SIZE,
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},
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},
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.dev_num = 1,
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.devs = (struct vm_dev_region[]) {
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{
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.pa = E3650_UART_BASE,
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.va = E3650_UART_BASE,
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.size = 0x10000,
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.interrupt_num = 0,
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},
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},
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.arch = {
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.gic = {
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.gicd_addr = E3650_GICD_BASE,
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.gicr_addr = E3650_GICR_BASE,
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},
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},
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},
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}
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}
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};

‎demos/baremetal+baremetal/make.mk‎

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include $(bao_demos)/guests/baremetal/make.mk
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ifeq ($(PLATFORM),e3650)
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vm0_image:=$(wrkdir_demo_imgs)/baremetal_vm0.bin
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vm0_args:=MEM_BASE=0x00B00000 MEM_SIZE=0x00100000 ARCH_CFLAGS="-Wno-error=incompatible-pointer-types"
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$(eval $(call build-baremetal, $(vm0_image), $(vm0_args)))
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vm1_image:=$(wrkdir_demo_imgs)/baremetal_vm1.bin
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vm1_args:=MEM_BASE=0x00C00000 MEM_SIZE=0x00100000 ARCH_CFLAGS="-Wno-error=incompatible-pointer-types"
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$(eval $(call build-baremetal, $(vm1_image), $(vm1_args)))
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guest_images:=$(vm0_image) $(vm1_image)
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endif

‎demos/baremetal/configs/e3650.c‎

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/**
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* SPDX-License-Identifier: Apache-2.0
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* Copyright (c) Bao Project and Contributors. All rights reserved.
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*/
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#include <config.h>
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#include <plat/platform.h>
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#define E3650_UART_BASE 0xF8D60000
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#define E3650_GICD_BASE 0xF4000000
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#define E3650_GICR_BASE 0xF4100000
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#define VM0_IRAM_BASE 0x00B00000
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#define VM0_IRAM_SIZE 0x00100000
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VM_IMAGE(guest_image, XSTR(BAO_DEMOS_WRKDIR_IMGS/baremetal.bin))
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struct config config = {
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.vmlist_size = 1,
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.vmlist = (struct vm_config[]) {
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{
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.image = VM_IMAGE_BUILTIN(guest_image, VM0_IRAM_BASE),
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.entry = VM0_IRAM_BASE,
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.cpu_affinity = 0xF,
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.platform = {
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.cpu_num = 4,
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.region_num = 1,
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.regions = (struct vm_mem_region[]) {
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{
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.base = VM0_IRAM_BASE,
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.size = VM0_IRAM_SIZE,
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},
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},
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.dev_num = 1,
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.devs = (struct vm_dev_region[]) {
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{
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.pa = E3650_UART_BASE,
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.va = E3650_UART_BASE,
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.size = 0x10000,
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.interrupt_num = 1,
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.interrupts = (unsigned[]) { 114 },
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},
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},
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.arch = {
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.gic = {
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.gicd_addr = E3650_GICD_BASE,
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.gicr_addr = E3650_GICR_BASE,
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},
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},
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},
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}
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}
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};

‎demos/baremetal/make.mk‎

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fvpr_image_data:=$(baremetal_image)@0x10000000
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endif
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ifeq ($(PLATFORM),e3650)
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baremetal_args:=MEM_BASE=0x00B00000 MEM_SIZE=0x00100000 ARCH_CFLAGS="-Wno-error=incompatible-pointer-types"
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endif
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$(eval $(call build-baremetal, $(baremetal_image), $(baremetal_args)))
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guest_images:=$(baremetal_image)

‎guests/baremetal/make.mk‎

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define build-baremetal
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$(strip $1): $(baremetal_src)
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$(MAKE) -C $(baremetal_src) PLATFORM=$(PLATFORM) clean
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$(MAKE) -C $(baremetal_src) PLATFORM=$(PLATFORM) $(strip $2)
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cp $(baremetal_bin) $$@
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endef

‎platforms/e3650/README.md‎

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# E3650 Platform Support
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This directory contains the platform-specific configurations and build rules for the **Phytium E3650** platform.
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## Supported Demos
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Currently, the following demos are supported for E3650:
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1. **`baremetal`**
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* A single baremetal guest (VM0) running on 4 cores.
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* Features basic UART output and interrupt handling.
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* Memory Base: `0x00B00000`
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2. **`baremetal+baremetal`**
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* Two simultaneous baremetal guests.
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* **VM0** (Master): Runs on Cores 0-1, Memory Base `0x00B00000`.
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* **VM1** (Slave): Runs on Cores 2-3, Memory Base `0x00C00000`.
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* Includes inter-vm communication and staggered UART output to demonstrate multi-core isolation.
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## Build Instructions
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To build a demo, use the standard `make` command from the root `bao-demos` directory. You must specify `PLATFORM=e3650` and the corresponding `CROSS_COMPILE`.
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### Prerequisites
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* `arm-none-eabi-` toolchain (AArch32)
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### Building Single Baremetal
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```bash
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make PLATFORM=e3650 DEMO=baremetal CROSS_COMPILE=arm-none-eabi-
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```
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### Building Dual Baremetal
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```bash
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make PLATFORM=e3650 DEMO=baremetal+baremetal CROSS_COMPILE=arm-none-eabi-
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```
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## Output Artifacts
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The build system automatically fetches the external PAC tool (`e3650_pac_tool`) and packages the Bao Hypervisor and Guest images into a signed PAC file.
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* **Output Location**: `wrkdir/imgs/e3650/<DEMO_NAME>/bao_pack_output/bao.pac`
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* **Intermediate Binaries**: `wrkdir/imgs/e3650/<DEMO_NAME>/*.bin`
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## Flashing
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Flash the downloaded bootloader($BAO_DEMOS_WRKDIR_SRC/e3650_pac_tool/bootloader/e3650_bootloader.pac) and bao.pac package into the E3650 board using Semidrive's SDFactoryTool. Access to this tool requires an active support agreement or direct contact with [Semidrive](https://www.semidrive.com/).

‎platforms/e3650/make.mk‎

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ARCH:=aarch32
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# PAC Tool Configuration
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pac_tool_dir:=$(wrkdir_src)/e3650_pac_tool
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wrkdirs+=$(pac_tool_dir)
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pac_tool_repo:=https://github.com/leon6002/e3650_pac_tool.git
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pac_tool_branch:=main
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# Target to fetch the PAC tool
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$(pac_tool_dir)/bao_pac.sh:
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rm -rf $(pac_tool_dir)
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git clone --recursive --branch $(pac_tool_branch) $(pac_tool_repo) $(pac_tool_dir)
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# PAC Image Generation
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pac_image:=$(wrkdir_demo_imgs)/bao_2vms.pac
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bao_bin:=$(wrkdir_demo_imgs)/bao.bin
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guest_bin:=$(wrkdir_demo_imgs)/baremetal_vm0.bin
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$(pac_image): $(bao_image) $(guest_images) $(pac_tool_dir)/bao_pac.sh
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$(pac_tool_dir)/bao_pac.sh $(bao_image) $(guest_images)
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platform: $(pac_image)
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