add AI Demo for Duo256M and DuoS

build.sh

@@ -56,7 +56,7 @@ function get_toolchain()
 
 function get_available_board()
 {
-  MILKV_BOARD_ARRAY=( $(find device -mindepth 1 -maxdepth 1 -type d -print ! -name "." | awk -F/ '{ print $NF }' | sort -t '-' -k2,2) )
+  MILKV_BOARD_ARRAY=( $(find device -mindepth 1 -maxdepth 1 -not -path 'device/common' -type d -print ! -name "." | awk -F/ '{ print $NF }' | sort -t '-' -k2,2) )
   #echo ${MILKV_BOARD_ARRAY[@]}
 
   MILKV_BOARD_ARRAY_LEN=${#MILKV_BOARD_ARRAY[@]}

build/Makefile

@@ -578,8 +578,9 @@ endif
 
 	# copy milkv overlay files
 ifeq ($(MV_VENDOR), milkv)
+	${Q}cp -arf $(TOP_DIR)/device/common/overlay/* $(BR_ROOTFS_DIR)/
 	${Q}cp -arf $(TOP_DIR)/device/$(MV_BOARD)/overlay/* $(BR_ROOTFS_DIR)/
-	${Q}cp -arf $(TOP_DIR)/device/$(MV_BOARD)/br_overlay/* $(BR_ROOTFS_DIR)/
+	${Q}cp -arf $(TOP_DIR)/device/common/br_overlay/* $(BR_ROOTFS_DIR)/
 	${Q}rm -rf $(BR_OVERLAY_DIR)
 endif
 	# strip

device/common/overlay/mnt/system/usr/bin/camera-test.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+export LD_LIBRARY_PATH=/mnt/system/lib
+
+sample_vi_fd /mnt/cvimodel/scrfd_768_432_int8_1x.cvimodel
+

device/milkv-duo-spinand/genimage.cfg

@@ -34,6 +34,10 @@ image milkv-duospinand.img {
 
 	partition system {
 		image = "rawimages/system.spinand"
-		size = 81152k
+		size = 71680k
 
+	partition cfg {
+		image = "rawimages/cfg.spinand"
+		size = 4096k
+	}
 }