From 0dd1c3b3fb19b2cddb66d3c3d2f5e461afcf9102 Mon Sep 17 00:00:00 2001
From: sakumisu <1203593632@qq.com>
Date: Sun, 12 Dec 2021 21:49:03 +0800
Subject: [PATCH] update porting readme

---
 port/ch32/README.md     | 12 ++++++++++++
 port/fsdev/README.md    | 14 ++++++++++++--
 port/mm32/README.md     | 14 ++++++++++++++
 port/synopsys/README.md | 13 +++++++++++--
 4 files changed, 49 insertions(+), 4 deletions(-)
 create mode 100644 port/ch32/README.md
 create mode 100644 port/mm32/README.md

diff --git a/port/ch32/README.md b/port/ch32/README.md
new file mode 100644
index 00000000..04b9cd67
--- /dev/null
+++ b/port/ch32/README.md
@@ -0,0 +1,12 @@
+# Note
+
+## Support Chip List
+
+- CH32F10x、CH32V10x
+
+## Before Use
+
+Your should implement `usb_dc_low_level_init` and `usb_dc_low_level_deinit`.
+- Enable or disable USB clock and set USB clock for 48M.
+- Enable or disable gpio and gpio clk for usb dp and dm.
+- Enable or disable usb irq
\ No newline at end of file
diff --git a/port/fsdev/README.md b/port/fsdev/README.md
index 04f6ee2b..fcf5572a 100644
--- a/port/fsdev/README.md
+++ b/port/fsdev/README.md
@@ -1,4 +1,6 @@
-# Support Chip List
+# Note
+
+## Support Chip List
 
 ## STM32
 
@@ -28,4 +30,12 @@
 
 ## CH32
 
-- CH32F10x、CH32V10x
\ No newline at end of file
+- CH32F10x、CH32V10x
+
+
+## Before Use
+
+Your should implement `usb_dc_low_level_init` and `usb_dc_low_level_deinit`.
+- Enable or disable USB clock and set USB clock for 48M.
+- Enable or disable gpio and gpio clk for usb dp and dm.
+- Enable or disable usb irq
\ No newline at end of file
diff --git a/port/mm32/README.md b/port/mm32/README.md
new file mode 100644
index 00000000..a34ad566
--- /dev/null
+++ b/port/mm32/README.md
@@ -0,0 +1,14 @@
+# Note
+
+## Support Chip List
+
+- MM32F10x
+- MM32FL0xx
+- MM32FL3xx
+
+## Before Use
+
+Your should implement `usb_dc_low_level_init` and `usb_dc_low_level_deinit`.
+- Enable or disable USB clock and set USB clock for 48M.
+- Enable or disable gpio and gpio clk for usb dp and dm.
+- Enable or disable usb irq
\ No newline at end of file
diff --git a/port/synopsys/README.md b/port/synopsys/README.md
index d6e4aa56..d0bc3df6 100644
--- a/port/synopsys/README.md
+++ b/port/synopsys/README.md
@@ -1,4 +1,6 @@
-# Support Chip List
+# Note
+
+## Support Chip List
 
 ## STM32
 
@@ -22,4 +24,11 @@
 
 ## HC32
 
-- HC32F4A0
\ No newline at end of file
+- HC32F4A0
+
+## Before Use
+
+Your should implement `usb_dc_low_level_init` and `usb_dc_low_level_deinit`.
+- Enable or disable USB clock and set USB clock for 48M.
+- Enable or disable gpio and gpio clk for usb dp and dm.
+- Enable or disable usb irq
\ No newline at end of file