add hardware i2c support

Author: htynkn

bsp/gd32/arm/gd32e230-lckfb/.ci/attachconfig/ci.attachconfig.yml

@@ -22,4 +22,9 @@ hw_drv_onchip.i2c0:
   kconfig:
     - CONFIG_BSP_USING_I2C0=y
     - CONFIG_BSP_I2C0_SCL_PIN=22
-    - CONFIG_BSP_I2C0_SDA_PIN=23
+    - CONFIG_BSP_I2C0_SDA_PIN=23
+hw_drv_onchip.i2c1:
+  kconfig:
+    - CONFIG_BSP_USING_HW_I2C=y
+    - CONFIG_BSP_USING_HW_I2C1=y
+    - CONFIG_BSP_HW_I2C1_CLOCK_SPEED=400000

bsp/gd32/arm/gd32e230-lckfb/.config

@@ -108,7 +108,7 @@
 # CONFIG_RT_UTEST_TC_USING_KLIBC is not set
 # end of klibc options
 
-CONFIG_RT_NAME_MAX=8
+CONFIG_RT_NAME_MAX=20
 # CONFIG_RT_USING_ARCH_DATA_TYPE is not set
 # CONFIG_RT_USING_NANO is not set
 # CONFIG_RT_USING_SMART is not set

bsp/gd32/arm/gd32e230-lckfb/README.md

@@ -36,9 +36,18 @@
 | :--- | :---: | :--- |
 | GPIO | 支持 | PAx, PBx... |
 | UART | 支持 | USART0, USART1 |
+| I2C | 支持 | I2C0, I2C1 硬件I2C |
 | **扩展模块** | **支持情况** | **备注** |
 | 暂无 | 暂不支持 | 暂不支持 |
 
+### 补充说明
+
+I2C 引脚分配：
+- **I2C0**: SCL(PB6), SDA(PB7)
+- **I2C1**: SCL(PB10), SDA(PB11)
+默认速率400KHz，可以配置调整。
+
+
 ## 使用说明
 
 使用说明分为如下两个章节：
@@ -95,7 +104,7 @@ pyocd flash -t gd32e230c8t6  rtthread.bin
 4.  输入 `scons -j12` 编译。
 
 ## 注意事项
-1.  GD32E230资源受限，虽然通过调整参数极限运行msh，但是意义不大，建议关闭。
+1.  GD32E230资源受限，虽然通过调整参数可以运行msh，但是意义不大，建议关闭。
 2.  **GPIOA-13** 和 **GPIOA-14** 默认用于 SWD 调试下载功能，建议不要配置为其它功能，否则将可能导致无法正常下载和调试。
 
 ## 联系人信息

bsp/gd32/arm/gd32e230-lckfb/board/Kconfig

@@ -146,13 +146,35 @@ menu "On-chip Peripheral Drivers"
             select RT_USING_I2C
             default n
             if BSP_USING_HW_I2C
-                config BSP_USING_I2C0
+                config BSP_USING_HW_I2C0
                     bool "Enable I2C0"
                     default y
 
-                config BSP_USING_I2C1
+                config BSP_HW_I2C0_CLOCK_SPEED
+                    int "I2C0 Clock Speed (Hz)"
+                    depends on BSP_USING_HW_I2C0
+                    range 100000 1000000
+                    default 400000
+                    help
+                      Set the I2C0 clock speed in Hz.
+                      Standard mode: 100000 (100KHz)
+                      Fast mode: 400000 (400KHz)
+                      Fast mode plus: 1000000 (1MHz)
+                
+                config BSP_USING_HW_I2C1
                     bool "Enable I2C1"
                     default n
+                
+                config BSP_HW_I2C1_CLOCK_SPEED
+                    int "I2C1 Clock Speed (Hz)"
+                    depends on BSP_USING_HW_I2C1
+                    range 100000 1000000
+                    default 400000
+                    help
+                      Set the I2C1 clock speed in Hz.
+                      Standard mode: 100000 (100KHz)
+                      Fast mode: 400000 (400KHz)
+                      Fast mode plus: 1000000 (1MHz)
             endif
         menuconfig BSP_USING_I2C0
             bool "Enable I2C0 BUS (software simulation)"

bsp/gd32/arm/gd32e230-lckfb/board/linker_scripts/link.ld

@@ -129,10 +129,6 @@ SECTIONS
 
         /* Discard all debugging and comment sections using the correct wildcard syntax */
         *(.comment)
-        *(.debug*)
-        *(.line)
-        *(.stab)
-        *(.stabstr)
         *(.note.gnu.build-id)
         *(.ARM.attributes)
     }

bsp/gd32/arm/gd32e230-lckfb/rtconfig.h

@@ -61,7 +61,7 @@
 
 /* end of rt_strnlen options */
 /* end of klibc options */
-#define RT_NAME_MAX 8
+#define RT_NAME_MAX 20
 #define RT_CPUS_NR 1
 #define RT_ALIGN_SIZE 8
 #define RT_THREAD_PRIORITY_32

bsp/gd32/arm/gd32e230-lckfb/rtconfig.py

@@ -28,7 +28,7 @@
 if os.getenv('RTT_EXEC_PATH'):
     EXEC_PATH = os.getenv('RTT_EXEC_PATH')
 
-BUILD = 'release'
+BUILD = 'debug'
 
 if PLATFORM == 'gcc':
     # toolchains

bsp/gd32/arm/libraries/gd32_drivers/SConscript

@@ -23,6 +23,11 @@ if GetDepend(['RT_USING_SERIAL']):
 if GetDepend(['RT_USING_I2C', 'RT_USING_I2C_BITOPS']):
     if GetDepend('BSP_USING_I2C0') or GetDepend('BSP_USING_I2C1') or GetDepend('BSP_USING_I2C2') or GetDepend('BSP_USING_I2C3'):
         src += ['drv_soft_i2c.c']
+ 
+ # add i2c hard drivers.       
+if GetDepend(['RT_USING_I2C']):
+    if GetDepend('BSP_USING_HW_I2C0') or GetDepend('BSP_USING_HW_I2C1'):
+        src += ['drv_hw_i2c.c']
 
 # add spi drivers.
 if GetDepend('RT_USING_SPI'):