refactor: 完成R8裸机lwIP移植并更新文档

2026-03-30 18:08:54 +08:00
parent 68c64959c7
commit 9efa2cdc59
24 changed files with 1845 additions and 3619 deletions
@@ -0,0 +1,59 @@
+#include "SEGGER_RTT.h"
+
+#include <string.h>
+
+SEGGER_RTT_CB _SEGGER_RTT;
+static char _acUpBuffer[BUFFER_SIZE_UP];
+
+void SEGGER_RTT_Init(void)
+{
+    memset(&_SEGGER_RTT, 0, sizeof(_SEGGER_RTT));
+    memcpy(_SEGGER_RTT.acID, "SEGGER RTT", 10);
+    _SEGGER_RTT.MaxNumUpBuffers = SEGGER_RTT_MAX_NUM_UP_BUFFERS;
+    _SEGGER_RTT.MaxNumDownBuffers = SEGGER_RTT_MAX_NUM_DOWN_BUFFERS;
+    _SEGGER_RTT.aUp[0].sName = "Terminal";
+    _SEGGER_RTT.aUp[0].pBuffer = _acUpBuffer;
+    _SEGGER_RTT.aUp[0].SizeOfBuffer = BUFFER_SIZE_UP;
+    _SEGGER_RTT.aUp[0].Flags = SEGGER_RTT_MODE_DEFAULT;
+}
+
+static void _EnsureInit(void)
+{
+    if (_SEGGER_RTT.acID[0] != 'S') {
+        SEGGER_RTT_Init();
+    }
+}
+
+unsigned SEGGER_RTT_Write(unsigned BufferIndex, const void *pBuffer, unsigned NumBytes)
+{
+    SEGGER_RTT_BUFFER_UP *ring;
+    const char *data = (const char *)pBuffer;
+    unsigned i;
+
+    _EnsureInit();
+    if (BufferIndex >= (unsigned)_SEGGER_RTT.MaxNumUpBuffers) {
+        return 0u;
+    }
+
+    ring = &_SEGGER_RTT.aUp[BufferIndex];
+    for (i = 0; i < NumBytes; ++i) {
+        unsigned next = (ring->WrOff + 1u) % ring->SizeOfBuffer;
+        if (next == ring->RdOff) {
+            break;
+        }
+        ring->pBuffer[ring->WrOff] = data[i];
+        ring->WrOff = next;
+    }
+
+    return i;
+}
+
+unsigned SEGGER_RTT_WriteString(unsigned BufferIndex, const char *s)
+{
+    return SEGGER_RTT_Write(BufferIndex, s, (unsigned)strlen(s));
+}
+
+unsigned SEGGER_RTT_PutChar(unsigned BufferIndex, char c)
+{
+    return SEGGER_RTT_Write(BufferIndex, &c, 1u);
+}