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Remove I2C buffer length limitation required by M24SR64-Y library #120

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Remove I2C buffer length limitation required by M24SR64-Y library #120

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2 changes: 1 addition & 1 deletion libraries/Wire/Wire.cpp
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Expand Up @@ -129,7 +129,7 @@ uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddres
}

// clamp to buffer length
if(quantity > BUFFER_LENGTH){
if(quantity >= BUFFER_LENGTH){
quantity = BUFFER_LENGTH;
}
// perform blocking read into buffer
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3 changes: 3 additions & 0 deletions libraries/Wire/Wire.h
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Expand Up @@ -26,7 +26,10 @@
#include "Stream.h"
#include "variant.h"

// Defines a default buffer length
#ifndef BUFFER_LENGTH
#define BUFFER_LENGTH 32
#endif

#define MASTER_ADDRESS 0x33

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2 changes: 2 additions & 0 deletions variants/DISCO_L475VG_IOT/variant.h
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Expand Up @@ -171,6 +171,8 @@ enum {
#define SDA 14
#define SCL 15

#define BUFFER_LENGTH 255 //Define I2C maximum buffer length

//Timer Definitions
//Do not use timer used by PWM pins when possible. See PinMap_PWM.
#define TIMER_TONE TIM6
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