Hide log_v behind conditional define, reduce excessive logging (#2641)
@cyberman54 from #2250 recommended reducing unnecessary logging.
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				| @ -1480,7 +1480,9 @@ i2c_err_t i2cDetachSDA(i2c_t * i2c, int8_t sda) | ||||
|  * */ | ||||
| // 24Nov17 only supports Master Mode
 | ||||
| i2c_t * i2cInit(uint8_t i2c_num, int8_t sda, int8_t scl, uint32_t frequency) { | ||||
| #ifdef ENABLE_I2C_DEBUG_BUFFER | ||||
|   log_v("num=%d sda=%d scl=%d freq=%d",i2c_num, sda, scl, frequency); | ||||
| #endif | ||||
|     if(i2c_num > 1) { | ||||
|         return NULL; | ||||
|     } | ||||
| @ -1674,8 +1676,9 @@ i2c_err_t i2cSetFrequency(i2c_t * i2c, uint32_t clk_speed) | ||||
|         clk_speed = apb/(period*2); | ||||
|         log_d("APB Freq too fast, Increasing i2c Freq to %d Hz",clk_speed); | ||||
|     } | ||||
| #ifdef ENABLE_I2C_DEBUG_BUFFER | ||||
|     log_v("freq=%dHz",clk_speed); | ||||
|        | ||||
| #endif       | ||||
|     uint32_t halfPeriod = period/2; | ||||
|     uint32_t quarterPeriod = period/4; | ||||
| 
 | ||||
| @ -1689,14 +1692,17 @@ i2c_err_t i2cSetFrequency(i2c_t * i2c, uint32_t clk_speed) | ||||
|     available when a Fifo interrupt is triggered.  This allows enough room in the Fifo so that | ||||
|     interrupt latency does not cause a Fifo overflow/underflow event. | ||||
| */ | ||||
| #ifdef ENABLE_I2C_DEBUG_BUFFER | ||||
|     log_v("cpu Freq=%dMhz, i2c Freq=%dHz",getCpuFrequencyMhz(),clk_speed); | ||||
| #endif | ||||
|     uint32_t fifo_delta = (INTERRUPT_CYCLE_OVERHEAD/((getCpuFrequencyMhz()*1000000 / clk_speed)*10))+1;  | ||||
|     if (fifo_delta > 24) fifo_delta=24;    | ||||
|     f.rx_fifo_full_thrhd = 32 - fifo_delta; | ||||
|     f.tx_fifo_empty_thrhd = fifo_delta; | ||||
|     i2c->dev->fifo_conf.val = f.val; // set thresholds
 | ||||
| #ifdef ENABLE_I2C_DEBUG_BUFFER | ||||
|     log_v("Fifo delta=%d",fifo_delta); | ||||
| 
 | ||||
| #endif | ||||
|     //the clock num during SCL is low level
 | ||||
|     i2c->dev->scl_low_period.period = period; | ||||
|     //the clock num during SCL is high level
 | ||||
|  | ||||
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