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--- instru_protocol [2021/02/22 13:06]
gongyusu 创建
+++ instru_protocol [2021/10/27 10:36] (当前版本)
gongyusu
@@ 行 1: / 行 1: @@
-## 仪器用数据传输及控制协议
+## 硬禾仪器用数据传输及控制协议
+本逻辑用于将高速ADC采集到的数据进行缓存，并根据上位机的需要，从缓存的数据中选出用于显示的部分进行传输，传输的方式可以是：
+  * 串口UART
+  * BLE
+  * WiFi
+  * SPI
+FPGA的作用负责解析控制器发来的控制字，并根据控制字的内容从缓存中选取需要的数据
+  - 由ADC获取的数据或送往DAC的数据：LVDS：250MHz/8bits/4Lanes， 并行：100MHz/14bits
+  - 需要显示的数据：20帧/秒 * 1KPoints/帧 * 10bit/points = 200kbps
+  - 存储深度：ADC - 8K * 10bits * 2（通道）= 20KBytes， DAC - 4K * 12bits * 2 = 12KByte，总计32KBytes
+未来在FPGA里面可以扩展的数据处理功能：
+  - FFT
+  - 数字滤波
+  - 模式识别
+  - 机器学习
+FPGA内部的框图如下：
+{{drawio>instru_control_data_protocol}}  <WRAP centeralign> 数据采集FPGA逻辑功能</WRAP>
+#### 参考文档：
+  * [[scope_verilog|基于FPGA逻辑的示波器设计]]
+  * [[up5k_scope|双通道50Msps/10MHz口袋示波器]]
+### 示波器部分的功能
+主要分为两部分：
+#### 双口RAM
+根据FPGA的内部Block RAM或外扩的RAM的实际情况设定双口RAM的大小，一般我们使用的Lattice XO2系列的FPGA内带的Block RAM为96kbits，如果采用双通道8位的高速ADC,则每个通道可以使用的RAM空间为48Kbits ~ 6KByte，考虑到高速ADC可以采用更高分辨率，比如12bit，96Kbits ~ 12bits * 2 * 4K，每个通道为4KB的存储深度。
+#### 并/串变换及控制逻辑
+### 任意波形发生器部分
+### 直流稳压电源部分
+### Waveformlive的仪器控制协议参考
+  * 下面的JSON数据已扩展以提高可读性。在传输之前，应将所有JSON缩小（删除空白）.
+  * 除非另有说明，否则使用HTTP时，所有命令均使用POST方法发送.
+  * 所有Digilent Instrumentation协议命令必须是JSON对象或分块传输:
+    * **JSON对象**
+      * 必须以'{'字符开头，并以'}'字符结尾.
+      * 可能后跟一个或多个'\ r \ n'.
+    *  **大块转移**
+      * 由一个或多个块组成.
+      * 每个块必须以ASCII十六进制格式的块中的字节数开头，后跟一个'\ r \ n'，二进制数据和一个'\ r \ n'.
+        * 块长度在块长度和数据之间不包含'\ r \ n'.
+        * 块长度不包含二进制数据后的尾随'\ r \ n'.
+      * 每个分块传输都以零长度的分块终止.
+      * Ex.
+<code>
+\r\n
+chunk1\r\n
+\r\n
+somedata\r\n
+E\r\n
+ in\r\n\r\nchunks.\r\n
+\r\n
+\r\n
+</code>
+#### 多命令
+----
+可以使用多命令在单个事务中发送多个命令。
+##### 举例:
+<WRAP group>
+<WRAP half column>
+**Command**
+<code>
+{
+   "dc":{
+      "1":[
+         {
+            "command":"setVoltage",
+            "voltage":3300
+         },
+         {
+            "command":"getVoltage"
+         }
+      ],
+      "2":[
+         {
+            "command":"setVoltage",
+            "voltage":5000
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+<WRAP half column>**Response**</WRAP>
+<code>
+{
+   "dc":{
+      "1":[
+         {
+            "command":"setVoltage",
+            "statusCode":0,
+            "wait":500
+         },
+         {
+            "command":"getVoltage",
+            "statusCode":0,
+            "wait":100,
+            "voltage":3300
+         }
+      ],
+      "2":[
+         {
+            "command":"setVoltage",
+            "statusCode":0,
+            "wait":500
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+\\
+\\
+#### 波形发生器部分
+提供访问任意波形发生器的数据和功能的命令
+##### 获得当前状态
+获得仪器通道的当前状态、
+##### 命令
+  * ** awg ** - (Object) - 任意波形发生器的目标.
+    * ** # ** - (Array<Object>) - An array of command objects to apply to the awg channel.
+      * ** command ** - (String) - 获取当前状态的命令: “getCurrentState”
+##### 响应
+  * ** awg **  - (Object) - 任意波形发生器的目标
+    * ** # ** - (Array<Object>) - An array of command objects applied to the awg channel.
+      * ** command ** - (String) - The Get Current State command: “getCurrentState”
+      * ** statusCode ** - (Integer) - A numeric value representing the device status.
+      * ** wait ** - (Integer) - The number of ms to wait before the device is ready to process another command.
+      * ** state ** - (String) - The instrument channel state: "idle" or "running".
+      * ** waveType ** - (String) - The waveform type: "sine", "square", "triangle", "dc", "sawtooth", "arbitrary", or "none".
+      * ** actualSignalFreq ** - (Integer) -  The actual waveform frequency in mHz.
+      * ** actualVpp ** - (Integer) - The actual peak-to-peak voltage in mV.
+      * ** actualVOffset ** - (Integer) - The actual voltage offset in mV.
+##### 例子
+<WRAP group>
+<WRAP half column>
+** 命令 **
+<code>
+{
+    "awg": {
+        "1": [
+            {
+                "command": "getCurrentState"
+            }
+        ]
+    }
+}
+</code>
+</WRAP>
+<WRAP half column> ** 响应 ** </WRAP>
+<code>
+{
+    "awg": {
+        "1": [
+            {
+                "command": "getCurrentState",
+                "statusCode": 0,
+                "wait": 0,
+                "state": "running",
+                "waveType": "sine",
+                "actualSignalFreq": 1000000,
+                "actualVpp": 3000,
+                "actualVOffset": 0
+            }
+        ]
+    }
+}
+</code>
+</WRAP>
+\\
+##### 设置通用波形
+设置AWG的通道参数以输出正常的波形
+##### 命令
+  * **awg** - (Object) - The arbitrary waveform generator object.
+    * **#** - (Array<Object>) - An array of command objects to apply to the awg channel.
+      * **command** - (String) - The Set Regular Waveform command: “setRegularWaveform”
+      * **signalType** - (String) - The waveform type: “sine”, “square”, “triangle”, “dc”, “sawtooth”, “arbitrary”, or “none”.
+      * **signalFreq** - (Integer) - The signal frequency in mHz.
+      * **vpp** - (Integer) - The peak-to-peak voltage in mV.
+      * **vOffset** - (Integer) - The voltage offset in mV.
+##### 响应
+  * **awg**  - (Object) - The arbitrary waveform generator object.
+    * **#** - (Array<Object>) - An array of command objects applied to the awg channel.
+      * **command** - (String) - The Set Regular Waveform command: “setRegularWaveform”
+      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[reference/software/digilent-instrumentation-protocol/status-codes]]
+      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.
+      * **actualSignalFreq** - (Integer) -  The actual waveform frequency in mHz.
+      * **actualVpp** - (Integer) - The actual peak-to-peak voltage in mV.
+      * **actualVOffset** - (Integer) - The actual voltage offset in mV.
+##### 举例(波形)
+---
+<WRAP group>
+<WRAP half column>
+**Command**
+<code>
+{
+   "awg":{
+      "1":[
+         {
+            "command":"setRegularWaveform",
+            "signalType":"sine",
+            "signalFreq":1000000,
+            "vpp":3000,
+            "vOffset":0
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+<WRAP half column> **Response** </WRAP>
+<code>
+{
+   "awg":{
+      "1":[
+         {
+            "command":"setRegularWaveform",
+            "statusCode":0,
+            "wait":0,
+            "actualSignalFreq": 1000000,
+            "actualVpp": 3000,
+            "actualVOffset":0
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+\\ \\
+##### 运行
+运行AWG通道
+##### 命令
+  * **awg** - (Object) - The arbitrary waveform generator object.
+    * **#** - (Array<Object>) - An array of command objects to apply to the awg channel.
+      * **command** - (String) - The Run command: “run”
+##### 响应
+  * **awg**  - (Object) - The arbitrary waveform generator object.
+    * **#** - (Array<Object>) - An array of command objects applied to the awg channel.
+      * **command** - (String) - The Run command: “run”
+      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[reference/software/digilent-instrumentation-protocol/status-codes]]
+      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.
+#### 举例:
+<WRAP group>
+<WRAP half column>
+**Command**
+<code>
+{
+   "awg":{
+      "1":[
+         {
+            "command":"run"
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+<WRAP half column>**Response**</WRAP>
+<code>
+{
+   "awg":{
+      "1":[
+         {
+            "command":"run",
+            "statusCode":0,
+            "wait":0
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+\\
+\\
+##### 停止
+----
+停止AWG通道
+#### 命令
+  * **awg** - (Object) - The arbitrary waveform generator object.
+    * **#** - (Array<Object>) - An array of command objects to apply to the awg channel.
+      * **command** - (String) - The Stop command: “stop”
+#### 响应
+  * **awg**  - (Object) - The arbitrary waveform generator object.
+    * **#** - (Array<Object>) - An array of command objects applied to the awg channel.
+      * **command** - (String) - The Stop command: “stop”
+      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[reference/software/digilent-instrumentation-protocol/status-codes]]
+      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.
+#### 举例:
+<WRAP group>
+<WRAP half column>
+**Command**
+<code>
+{
+   "awg":{
+      "1":[
+         {
+            "command":"stop"
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+<WRAP half column>**Response**</WRAP>
+<code>
+{
+   "awg":{
+      "1":[
+         {
+            "command":"stop",
+            "statusCode":0,
+            "wait":0
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+\\
+\\
+#### 直流电压
+提供访问直流电压数据和函数的命令
+##### 获取当前状态
+----
+Get the current state of the instrument's channel
+#### 命令
+  * **dc** - (Object) - The DC power supply object.
+    * **#** - (Array<Object>) - An array of command objects to apply to the DC power supply channel.
+      * **command** - (String) - The Get Current State command: “getCurrentState”
+#### 响应
+  * **gpio** - (Object) - The DC power supply object.
+    * **#** - (Array<Object>) - An array of command objects applied to the DC power supply  channel.
+      * **command** - (String) - The Get Current State command: “getCurrentState”
+      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[reference/software/digilent-instrumentation-protocol/status-codes]]
+      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.
+      * **state** - (String) - The current state of the channel: "idle" or "running".
+      * **voltage** - (Integer) - The current measured value of the channel in mV.
+#### 举例
+<WRAP group>
+<WRAP half column>
+**命令**
+<code>
+{
+    "dc": {
+        "1": [
+            {
+                "command":"getCurrentState"
+            }
+        ]
+    }
+}
+</code>
+</WRAP>
+<WRAP half column>**响应**</WRAP>
+<code>
+{
+    "dc": {
+        "1": [
+            {
+                "command": "getCurrentState",
+                "statusCode": 0,
+                "wait": 0,
+                "state": "idle",
+                "voltage": 3300
+            }
+        ]
+    }
+}
+</code>
+</WRAP>
+\\
+##### 获取电压值
+----
+Get the output voltage(s) of the specified DC power supply channel(s).
+#### 命令
+  * **dc** - (Object) - The DC power supply object.
+    * **#** - (Array<Object>) - An array of command objects to apply to the DC power supply channel.
+      * **command** - (String) - The Get Voltage command: “getVoltage”
+#### 响应
+  * **gpio** - (Object) - The DC power supply object.
+    * **#** - (Array<Object>) - An array of command objects applied to the DC power supply  channel.
+      * **command** - (String) - The Get Voltage command: “getVoltage”
+      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[reference/software/digilent-instrumentation-protocol/status-codes]]
+      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.
+      * **voltage**  - (Integer) - The current measured value of the channel in mV.
+#### 举例
+<WRAP group>
+<WRAP half column>
+**命令**
+<code>
+{
+   "dc":{
+      "1":[
+         {
+            "command":"getVoltage"
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+<WRAP half column>**Response**</WRAP>
+<code>
+{
+   "dc":{
+      "1":[
+         {
+            "command":"getVoltage",
+            "statusCode":0,
+            "wait":100,
+            "voltage":3300
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+\\
+\\
+##### 设置电压
+----
+Set the output voltage(s) of the specified DC power supply channel(s).
+#### 命令
+  * **dc** - (Object) - The DC power supply object.
+    * **#** - (Array<Object>) - An array of command objects to apply to the DC power supply channel.
+      * **command** - (String) - The Set Current State command: "setCurrentState”
+      * **voltage** - (Integer) - The desired voltage in mV.
+#### 响应
+  * **gpio** - (Object) - The DC power supply object.
+    * **#** - (Array<Object>) - An array of command objects applied to the DC power supply  channel.
+      * **command** - (String) - The Set Current State command: "setCurrentState”
+      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[reference/software/digilent-instrumentation-protocol/status-codes]]
+      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.
+#### 举例:
+<WRAP group>
+<WRAP half column>
+**Command**
+<code>
+{
+   "dc":{
+      "1":[
+         {
+            "command":"setVoltage",
+            "voltage":3300
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+<WRAP half column>**Response**</WRAP>
+<code>
+{
+   "dc":{
+      "1":[
+         {
+            "command":"setVoltage",
+            "statusCode":0,
+            "wait":500
+         }
+      ]
+   }
+}
+</code>
+</WRAP>
+\\
+\\
-{{drawio>instru_control_data_protocol}}