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README.md

@@ -17,4 +17,32 @@ Yuzuki Rosetta is a low-cost Linux development board based on the R328-S3. Dual-
 
 Allwinner’s R328-S3 is a highly integrated dual-core SoC targeted for audio application markets. The R328-S3 integrates a dual-core ARM Cortex-A7 operating up to 1.2GHz. An extensive set of audio interfaces such as audio codec, I2S/PCM,DMIC,one wire audio(OWA) are included for microphone voice wake-up/recognition/record/playback applications on connected audio products. In addition, voice activity detector(VAD) supports low power consumption wake-up function to reduce standby power consumption.
 
-![01](Bitmap/03.png)
+![01](Bitmap/03.png)
+
+## Development
+
+Coming soon..
+
+## Flash Firmware
+
+The following mainly introduces the method of flash with PhoenixSuit. The flash method of LiveSuit and PhoenixUSBpro is similar.
+
+Download PhoenixSuit：[PhoenixSuit](https://www.aw-ol.com/downloads/resources/13)
+
+Before using PhoenixSuit, you need to install the driver at the same time: [Allwinner USB Driver](https://www.aw-ol.com/downloads/resources/15)
+
+*Enterprise developers will also install the Allwinner USB driver when installing APST, so there is no need to install it separately
+
+Specific steps are as follows:
+
+(1) Open PhoenixSuit, when the device is powered on and connected to the PC, PhoenixSuit will prompt to recognize the device;
+
+(2) Click `One-click flash-browse` to select the firmware to be flashed;
+
+(3) Click `Upgrade now`, then a restart command will be sent to the device through USB, the device will restart with the programming logo, and enter the flash mode in the restart stage;
+
+(4) When the device returns to boot, it will be automatically programmed, and you can see that the progress bar of PhoenixSuit is moving;
+
+(5) After the flash is successful, the device restarts.
+
+![image-20210310195432915.png](Bitmap/image-20210310195432915.png)