diff --git a/documents/raspberrypi/交叉编译内核.md b/documents/raspberrypi/交叉编译内核.md
index d09e3d7..64da2e4 100644
--- a/documents/raspberrypi/交叉编译内核.md
+++ b/documents/raspberrypi/交叉编译内核.md
@@ -114,7 +114,7 @@
 
 ## 创建编译内核模块目录
 
-`mkdir ${WORKDIR}/ouput`
+`mkdir ${WORKDIR}/output`
 
 ## 编译内核模块
 
diff --git a/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_AP6234.txt b/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_AP6234.txt
index c552cab..f1a52df 100644
--- a/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_AP6234.txt
+++ b/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_AP6234.txt
@@ -52,7 +52,7 @@ pa1b1=-671
 pa1b2=-212
 tssifloor5gm=77
 
-#PA paramasdeters for high band
+#PA parameters for high band
 #pa1hib0=5320 default
 pa1hib0=5620
 #pa1hib1=-963
diff --git a/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_ap6181.txt b/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_ap6181.txt
index f8221d6..84b6c0d 100644
--- a/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_ap6181.txt
+++ b/scripts/rockchip/bin/wireless/system/etc/firmware/nvram_ap6181.txt
@@ -1,5 +1,5 @@
 #AP6181_NVRAM_V1.2_05242017
-#adjuest PA parameter for g/n mode
+#adjust PA parameter for g/n mode
 manfid=0x2d0
 prodid=0x492
 vendid=0x14e4
diff --git a/scripts/rockchip/build_boot.sh b/scripts/rockchip/build_boot.sh
index 93572a0..9042a3d 100755
--- a/scripts/rockchip/build_boot.sh
+++ b/scripts/rockchip/build_boot.sh
@@ -213,9 +213,9 @@ mk_boot() {
 
     LOG "start gen initrd..."
     dracut --no-kernel ${boot_dir}/initrd.img
-    LOG "gen initrd donw."
+    LOG "gen initrd done."
 
-    kernel_name=$(ls $boot_dir | grep vmlinu)
+    kernel_name=$(ls $boot_dir | grep vmlinuz)
     dtb_name=$(ls $boot_dir | grep dtb)
     LOG "gen extlinux config for $dtb_name"
     if [ "${platform}" == "rockchip" ];then