[bsp][nrf5x] Adapt to gcc compilation (#10478)

bsp/nrf5x/libraries/drivers/drv_uarte.c

@@ -254,6 +254,9 @@ static int _uart_putc(struct rt_serial_device *serial, char c)
         {
         }
     }
+#if defined(SOC_NRF5340)
+    return 1;
+#endif /* SOC_NRF5340*/
     return rtn;
 }
 
@@ -299,6 +302,9 @@ int rt_hw_uart_init(void)
 
 #ifdef BSP_USING_UART1
     m_serial_1.config = config;
+#if defined(SOC_NRF5340)
+    m_serial_1.config.baud_rate =  1000000;
+#endif /* SOC_NRF5340*/
     m_serial_1.ops = &_uart_ops;
     m_uarte1_cb.serial = &m_serial_1;
     rt_hw_serial_register(&m_serial_1, "uart1", \

bsp/nrf5x/nrf5340/README.md

@@ -93,6 +93,32 @@ PCA10143-nrf7002 开发板常用 **板载资源** 如下：
 4. 输入`scons --target=mdk5` 命令重新生成工程。
 
 
+### 启用Openocd调试
+
+```
+
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "nRF5340_Debug-RT-Thread",
+            "executable": "${workspaceRoot}/rt-thread.elf",
+            "request": "launch",
+            "type": "cortex-debug",
+            "runToEntryPoint": "main",
+            "targetId": "nRF5340_xxAA_APP",//填device名
+            "servertype": "jlink",
+            "device": "nRF5340_xxAA_APP",//填device名
+            "interface": "swd",
+            "svdFile": "${workspaceRoot}/packages/nrfx-latest/mdk/nrf5340_application.svd",
+            "armToolchainPath": "D:/bin/env-windows/tools/gnu_gcc/arm_gcc/mingw/bin", // 这里填入GCC 工具链路径,我用的是env的gcc
+            "serverpath": "D:/RT-ThreadStudio/repo/Extract/Debugger_Support_Packages/SEGGER/J-Link/v7.92/JLinkGDBServerCL.exe" // 这里填入GDB 路径,我用的是RT-ThreadStudio,注意你的jlink路径跟我的不一样一样，可以参考
+        }
+    ]
+}
+
+```
+
 
 ## 支持其他开发板
 

bsp/nrf5x/nrf5340/rtconfig.py

@@ -42,14 +42,14 @@ if PLATFORM == 'gcc':
 
     DEVICE = ' -mcpu='+CPU + ' -mthumb -ffunction-sections -fdata-sections'
     CFLAGS = DEVICE
-    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
+    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__START=entry -D__STARTUP_CLEAR_BSS'
     LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link.lds'
 
     CPATH = ''
     LPATH = ''
 
     if BUILD == 'debug':
-        CFLAGS += ' -O0 -gdwarf-2'
+        CFLAGS += ' -Og -gdwarf-2'
         AFLAGS += ' -gdwarf-2'
     else:
         CFLAGS += ' -O2'