diff --git a/docs/CH32V307.md b/docs/CH32V30x.md
similarity index 95%
rename from docs/CH32V307.md
rename to docs/CH32V30x.md
index 2154901..20ee7e9 100644
--- a/docs/CH32V307.md
+++ b/docs/CH32V30x.md
@@ -1,4 +1,8 @@
-# CH32V307
+# CH32V30x
+
+- CH32V303
+- CH32V305
+- CH32V307
 
 ```console
 wlink -v dump 0x08000000 0x10`
diff --git a/docs/CH32X035.md b/docs/CH32X035.md
index 1b19eed..9f230d1 100644
--- a/docs/CH32X035.md
+++ b/docs/CH32X035.md
@@ -1,4 +1,4 @@
-# CH32X035
+# CH32X035/CH32X033
 
 RISC-V4C, 62KB Flash, 20KB SRAM.
 
@@ -6,8 +6,8 @@ OPA/PGA/CMP, USB-PD/Type-C.
 
 ## Debug Pins
 
-SWDIO - PC18/DIO @ MCU
-SWCLK - PC19/DCK @ MCU
+- SWDIO - PC18/DIO @ MCU
+- SWCLK - PC19/DCK @ MCU
 
 PC17 to High, enable USB ISP DOWNLOAD MODE
 
diff --git a/docs/CH57x_CH58x_CH59x.md b/docs/CH57x_CH58x_CH59x.md
index b8a3495..8440d5e 100644
--- a/docs/CH57x_CH58x_CH59x.md
+++ b/docs/CH57x_CH58x_CH59x.md
@@ -1,6 +1,6 @@
 # CH57X & CH58X & CH59X
 
-BLE MCU.
+BLE MCUs. They are sharing almost the same preipheral set
 
 ## Debug Pins
 
@@ -11,4 +11,4 @@ BLE MCU.
 
 - Enable debug using WCHISPTool
 - After debug enabled, flash should be prgrammed at lease once
-- `a9 bd f9 f3` means erased flash or protected flash, the detailed mechanism is unknown
+- `a9 bd f9 f3` means erased flash or protected flash. The detailed mechanism is unknown