add iic support for stm32 and pikastd device

bsp/stm32g030c8/MDK-ARM/stm32g030c8.uvprojx

@@ -735,6 +735,16 @@
               <FileType>1</FileType>
               <FilePath>..\pikascript\pikascript-api\STM32-api.c</FilePath>
             </File>
+            <File>
+              <FileName>PikaStdDevice_IIC-api.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\pikascript\pikascript-api\PikaStdDevice_IIC-api.c</FilePath>
+            </File>
+            <File>
+              <FileName>STM32_IIC-api.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\pikascript\pikascript-api\STM32_IIC-api.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -825,6 +835,16 @@
               <FileType>1</FileType>
               <FilePath>..\pikascript\pikascript-lib\STM32\STM32_UART.c</FilePath>
             </File>
+            <File>
+              <FileName>STM32_IIC.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\pikascript\pikascript-lib\STM32\STM32_IIC.c</FilePath>
+            </File>
+            <File>
+              <FileName>PikaStdDevice_IIC.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\pikascript\pikascript-lib\PikaStdDevice\PikaStdDevice_IIC.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>

bsp/stm32g030c8/pikascript/main.py

@@ -1,25 +1,24 @@
 import PikaStdLib
-import PikaMath
 import STM32
 import PikaPiZero
 
-time = STM32.Time()
 uart = STM32.UART()
-adc = STM32.ADC()
-pin = STM32.GPIO()
-pwm = STM32.PWM()
 uart = STM32.UART()
 rgb = PikaPiZero.RGB()
 mem = PikaStdLib.MemChecker()
-op = PikaMath.Operator()
 
 uart.init()
 uart.setId(1)
 uart.setBaudRate(115200)
 uart.enable()
 
-rgb.init()
+iic = STM32.IIC()
-rgb.enable()
+iic.init()
+iic.setPinSDA('PB0')
+iic.setPinSCL('PB1')
+iic.setDeviceAddr(88)
+iic.enable()
+print(iic.read(4))
 
 print('hello 2')
 print('mem used max:')
@@ -28,7 +27,6 @@ mem.max()
 i = 0
 while i < 100:
     i = i + 1
-    rgb.flow()
     print(i)
 
 print('Hello PikaScript!')

package/PikaStdDevice/PikaStdDevice.py

@@ -114,6 +114,41 @@ class UART(TinyObj):
         pass
 
 
+class IIC(TinyObj):
+    def init():
+        pass
+
+    def setPinSCL(pin: str):
+        pass
+
+    def setPinSDA(pin: str):
+        pass
+
+    def setDeviceAddr(addr: int):
+        pass
+
+    def enable():
+        pass
+
+    def write(addr: int, data: str):
+        pass
+
+    def read(addr: int, length: int) -> str:
+        pass
+
+    # need override
+    def platformEnable():
+        pass
+
+    # need override
+    def platformWrite(addr: int, data: str):
+        pass
+
+    # need override
+    def platformRead(addr: int, length: int) -> str:
+        pass
+
+
 class PWM(TinyObj):
     def init():
         pass

package/STM32/STM32.py

@@ -57,6 +57,7 @@ class UART(PikaStdDevice.UART):
     def platformRead(id: int, length: int) -> str:
         pass
 
+
 class PWM(PikaStdDevice.PWM):
     # override
     def platformEnable(pin: str, freq: int, duty: float):
@@ -68,4 +69,21 @@ class PWM(PikaStdDevice.PWM):
 
     # override
     def platformSetDuty(pin: str, duty: float):
-        pass
+        pass
+
+
+class IIC(PikaStdDevice.IIC):
+    SCL = GPIO()
+    SDA = GPIO()
+    # override
+
+    def platformEnable():
+        pass
+
+    # override
+    def platformWrite(addr: int, data: str):
+        pass
+
+    # override
+    def platformRead(addr: int, length: int) -> str:
+        pass