76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
#include "SEGGER_RTT.h"
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#include <string.h>
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static char _acUpBuffer[BUFFER_SIZE_UP];
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static char _acDownBuffer[BUFFER_SIZE_DOWN];
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SEGGER_RTT_CB _SEGGER_RTT = {
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"SEGGER RTT",
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SEGGER_RTT_MAX_NUM_UP_BUFFERS,
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SEGGER_RTT_MAX_NUM_DOWN_BUFFERS,
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{
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{ "Terminal", _acUpBuffer, BUFFER_SIZE_UP, 0u, 0u, SEGGER_RTT_MODE_DEFAULT }
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},
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{
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{ "Terminal", _acDownBuffer, BUFFER_SIZE_DOWN, 0u, 0u, SEGGER_RTT_MODE_DEFAULT }
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}
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};
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void SEGGER_RTT_Init(void)
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{
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memset(&_SEGGER_RTT, 0, sizeof(_SEGGER_RTT));
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memcpy(_SEGGER_RTT.acID, "SEGGER RTT", 10);
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_SEGGER_RTT.MaxNumUpBuffers = SEGGER_RTT_MAX_NUM_UP_BUFFERS;
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_SEGGER_RTT.MaxNumDownBuffers = SEGGER_RTT_MAX_NUM_DOWN_BUFFERS;
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_SEGGER_RTT.aUp[0].sName = "Terminal";
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_SEGGER_RTT.aUp[0].pBuffer = _acUpBuffer;
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_SEGGER_RTT.aUp[0].SizeOfBuffer = BUFFER_SIZE_UP;
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_SEGGER_RTT.aUp[0].Flags = SEGGER_RTT_MODE_DEFAULT;
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_SEGGER_RTT.aDown[0].sName = "Terminal";
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_SEGGER_RTT.aDown[0].pBuffer = _acDownBuffer;
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_SEGGER_RTT.aDown[0].SizeOfBuffer = BUFFER_SIZE_DOWN;
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_SEGGER_RTT.aDown[0].Flags = SEGGER_RTT_MODE_DEFAULT;
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}
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static void _EnsureInit(void)
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{
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if (_SEGGER_RTT.acID[0] != 'S') {
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SEGGER_RTT_Init();
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}
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}
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unsigned SEGGER_RTT_Write(unsigned BufferIndex, const void *pBuffer, unsigned NumBytes)
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{
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SEGGER_RTT_BUFFER_UP *ring;
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const char *data = (const char *)pBuffer;
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unsigned i;
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_EnsureInit();
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if (BufferIndex >= (unsigned)_SEGGER_RTT.MaxNumUpBuffers) {
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return 0u;
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}
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ring = &_SEGGER_RTT.aUp[BufferIndex];
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for (i = 0; i < NumBytes; ++i) {
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unsigned next = (ring->WrOff + 1u) % ring->SizeOfBuffer;
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if (next == ring->RdOff) {
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break;
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}
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ring->pBuffer[ring->WrOff] = data[i];
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ring->WrOff = next;
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}
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return i;
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}
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unsigned SEGGER_RTT_WriteString(unsigned BufferIndex, const char *s)
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{
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return SEGGER_RTT_Write(BufferIndex, s, (unsigned)strlen(s));
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}
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unsigned SEGGER_RTT_PutChar(unsigned BufferIndex, char c)
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{
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return SEGGER_RTT_Write(BufferIndex, &c, 1u);
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}
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