27 lines
788 B
C++
27 lines
788 B
C++
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#include "buffer.h"
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uint8_t RF_rxBuffer[512]; //must have and even number of elements
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uint8_t* RF_rxBufferStartP = &RF_rxBuffer[0];
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uint8_t* RF_rxBufferEndP = &RF_rxBuffer[511];
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volatile uint8_t* bufferWriteP = RF_rxBufferStartP;
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uint16_t calculateBufferPointerDistance(uint8_t* bufStartP, uint8_t* bufEndP) {
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if (bufStartP <= bufEndP) {
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return bufEndP - bufStartP + 1;
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} else {
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return (RF_rxBufferEndP - bufStartP) + (bufEndP - RF_rxBufferStartP) + 2;
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}
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}; //end calculateBufferPointerDistance
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uint8_t* getNextBufferPointer(uint8_t* p) {
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if ( p + 1 > RF_rxBufferEndP) {
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return RF_rxBufferStartP;
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} else {
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return p + 1;
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}
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}; //end getNextBufferPointer
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void stepBufferPointer(uint8_t** p) {
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*p = getNextBufferPointer(*p);
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}; //end stepBufferPointer
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