diff --git a/.gitignore b/.gitignore
index 770469d..e1aeda7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 *.pyc
 *.hex
+*.log
 .pio/
 .vscode/
diff --git a/README.md b/README.md
index 10c1ca0..845c6b1 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,7 @@
 
 ## [CH552简介](https://github.com/SoCXin/CH552/wiki)
 
-[CH552](https://github.com/SoCXin/CH552)兼容MCS51的增强型E8051内核，79%指令是单字节单周期指令，2KB Boot + 14KB Flash，1K xRAM(支持DMA) +256B iRAM，128B DataFlash。
-
-内置2KB BootLoader，支持USB和串口ISP，提供ISP下载库。
+[CH552](https://github.com/SoCXin/CH552)兼容MCS51的增强型E8051内核，79%指令是单字节单周期指令，2KB BootLoader + 14KB Flash，1K xRAM(支持DMA) +256B iRAM，128B DataFlash。
 
 内置24MHz时钟源和PLL，内置了ADC模数转换、触摸按键电容检测、3组定时器和信号捕捉及PWM、双异步串口、SPI、USB设备控制器和全速收发器、USB type-C等功能模块。
 
@@ -18,25 +16,26 @@
 #### 关键特性
 
 * 5V->3.3V LDO
-* Type-C主从检测
+* 内置2KB BootLoader，支持USB和串口ISP，提供ISP下载库
+* Type-C 主从检测
 * USB全速设备模式
-* UART x 2 + SPI
-* 性价比小封装(TSSOP20/SOP16/MSOP10/QFN16)
+* UART x 2 + SPI x 1
+* 小封装(TSSOP20/SOP16/MSOP10/QFN16)
 
 ### [资源收录](https://github.com/SoCXin/CH552)
 
 * [参考文档](docs/)
 * [参考资源](src/)
 * [参考工程](project/)
-
-* [烧录工具上位机](http://www.wch.cn/downloads/WCHISPTool_Setup_exe.html)
+* [下载工具](http://www.wch.cn/downloads/WCHISPTool_Setup_exe.html)
 
 ### [选型建议](https://github.com/SoCXin)
 
-[CH552](https://github.com/SoCXin/CH552) 是市场上高性价比USB单片机，在开源社区中拥有较高声望，[Arduino](https://github.com/OS-Q/A05)适配和各种开发示例。
+[CH552](https://github.com/SoCXin/CH552) 是市场上高性价比USB单片机，在开源社区中拥有较高声望。
 
 同系列中升级[CH554](http://www.wch.cn/products/CH554.html)将增加支持USB HOST主机模式
 
-降低规格可选[CH551](http://www.wch.cn/products/CH551.html)，ROM降为10K，片内xRAM为512字节，异步串口仅提供UART0，仅SOP16封装，并且去掉了ADC模数转换模块和USB type-C模块
+降低规格可选[CH551](http://www.wch.cn/products/CH551.html)，ROM降为10K，片内xRAM为512字节，异步串口仅提供UART0，仅SOP16封装，并且去掉了ADC模数转换模块和USB type-C模块。
+
 ###  [www.SoC.xin(芯)](http://www.SoC.Xin)
 
diff --git a/index.json b/index.json
index 592c3ea..2f3d58f 100644
--- a/index.json
+++ b/index.json
@@ -1,53 +1,47 @@
 {
     "name":"CH552",
-    "series":["CH552P","CH551P"],
+    "series":["CH552","CH551"],
     "type":"MCU",
-    "Core":"8051",
+    "Core":"MCS51",
     "Freq":"24MHz",
-    "description":"WCH 1T 8051 CH552 MCU",
-    "peripheral": ["ADC","DAC","USB","RTC","UART","SUART","I2C","I2S","SPI","AES","DMA"],
-    "package":["LQFP48","QFN28","SOP16"],
-    "SRAM":8,
-    "Flash":64,
+    "description":"WCH 1T 8051 MCU",
+    "peripheral": ["ADC","USB","UART","SPI","LDO","PWM"],
+    "package":["QFN16","MSOP10","TSSOP20","SOP16"],
+    "SRAM":1,
+    "Flash":16,
+    "DATA":128,
     "UART": {
-        "num": 3,
+        "num": 2,
         "FIFO": 16,
         "ISO7816": 1,
         "more":["BUAD","LIN","IrDA"]
     },
     "ADC": {
         "num": 1,
-        "PGA": 4,
-        "channel": 16,
-        "resolution": 12,
+        "channel": 4,
+        "resolution": 8,
         "rate": 2400
     },
     "TIM": {
-        "resolution":[16,16,16,16,32],
-        "rate": 1024
-    },
-    "RCC": {
-        "HSI": 16384,
-        "LSI": 32,
-        "HSE": [1024,20480],
-        "PLL": [32768,49152],
-        "accuracy": 0.02,
+        "resolution":[16,16,16],
         "rate": 1024
     },
     "USB": {
         "num": 1,
-        "more":["FS","device"]
-    },
-    "RTC": {
-        "CLK": 32768,
-        "PPM": 1.5,
-        "Ivdd": 0.5
+        "FIFO": 64,
+        "more":["FS","type-C","device"]
     },
     "PWR": {
-        "VDD": [1850,5500],
+        "VDD": [2800,5000],
         "Ivdd": 3.5,
+        "LDO": [5000,3300],
         "rate": 1024
     },
+    "PWM": {
+        "num": 2,
+        "resolution": 8,
+        "rate": 256
+    },
     "upload": {
         "ISP": true,
         "IAP": true,
diff --git a/package.json b/package.json
deleted file mode 100644
index b6f381e..0000000
--- a/package.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-    "name":"CH552",
-    "Core":"8051",
-    "description":"1T 8051 CH552 MCU",
-    "url":"https://github.com/SoCXin/CH552",
-    "version":"1.0.0"
-}