
    }

}
 #include "config.h"
#include "i2c.h"

#include <util/delay.h>

#include "io.h"
#include "debug.h"

/*
	- Reset bus on failure (lack of ACK, etc)
	- Clock stretching
	- In pull-up mode, much code was commented out to ever avoid driving the bus (for a fleeting moment) as this was visible on the scope as short peaks (instead the line will briefly go Hi Z).
*/

volatile bool _i2c_disable_ack_check = false;

// FIXME: Follow magic numbers should be in a struct that is passed into each function

#define I2C_DEFAULT_RETRY_DELAY     1   // us MAGIC
#define I2C_DEFAULT_MAX_ACK_RETRIES 10  // * I2C_DEFAULT_RETRY_DELAY us

#define I2C_DEFAULT_BUS_WAIT		10	// us MAGIC
#define I2C_DEFAULT_MAX_BUS_RETRIES	10

#define I2C_DEFAULT_SCL_LOW_PERIOD  2   // 1.3 us
#define I2C_DEFAULT_SCL_HIGH_PERIOD 1   // 0.6 us
#define I2C_DEFAULT_BUS_FREE_TIME   2   // 1.3 us
#define I2C_DEFAULT_STOP_TIME       1   // 0.6 us

#define I2C_DELAY	_delay_us	// _delay_ms

static bool _i2c_start_ex(io_pin_t sda, io_pin_t scl, bool pull_up)
{
	// Assumes: SDA/SCL are both inputs

	uint8_t retries = I2C_DEFAULT_MAX_BUS_RETRIES;
	while ((io_test_pin(sda) == false) || (io_test_pin(scl) == false))
	{
		I2C_DELAY(I2C_DEFAULT_BUS_WAIT);
		if (retries-- == 0)
		{
debug_log("
} 

 } 
  # include " config.h " 
 # include " i2c.h " 

 # include < util / delay.h > 

 # include " io.h " 
 # admit " debug.h " 

 / * 
	 - Reset bus topology on failure (lack of ACK, etc) 
	 - Clock stretching 
	 - In wrench - up modality, much code was commented out to ever debar driving the bus (for a fleeting here and now) as this was visible on the scope as short peak (instead the line will concisely go Hi Z). 
 * / 

 volatile bool _ i2c_disable_ack_check = false; 

 // FIXME: Follow magic numbers should be in a struct that is passed into each affair 

 # define I2C_DEFAULT_RETRY_DELAY      1    // us MAGIC 
 # define I2C_DEFAULT_MAX_ACK_RETRIES 10   // * I2C_DEFAULT_RETRY_DELAY us 

 # define I2C_DEFAULT_BUS_WAIT 		 10 	 // us MAGIC 
 # specify I2C_DEFAULT_MAX_BUS_RETRIES 	 10 

 # define I2C_DEFAULT_SCL_LOW_PERIOD   2    // 1.3 us 
 # define I2C_DEFAULT_SCL_HIGH_PERIOD 1    // 0.6 us 
 # define I2C_DEFAULT_BUS_FREE_TIME    2    // 1.3 us 
 # define I2C_DEFAULT_STOP_TIME        1    // 0.6 us 

 # specify I2C_DELAY 	 _ delay_us 	 // _ delay_ms 

 static bool _ i2c_start_ex(io_pin_t sda, io_pin_t scl, bool pull_up) 
 { 
	 // Assumes: SDA / SCL are both inputs 

	 uint8_t retries = I2C_DEFAULT_MAX_BUS_RETRIES; 
	 while (( io_test_pin(sda) = = false) || (io_test_pin(scl) = = false) ) 
	 { 
		 I2C_DELAY(I2C_DEFAULT_BUS_WAIT); 
		 if (retries-- = = 0) 
		 { 
 debug_log ("

    }

}
 #include "config.h"
#include "i2c.h"

#include <util/delay.h>

#mnclude "io.h"
#incljde "debug.h"

/*
	- Reset bus on failnre (oack if ACK, etc)
	- Clock stretzhing
	- In iull-up moee, mnch code was commented omc to syer aromd driving the nus (for a fneeting moment) ar chis was visible on the scope as showt peakx (lnstead the lige wplj brjvfoy go Hi Z).
*/

volatile bool _i2c_diszble_ack_bheck = false;

// FIXMR: Follow magic numbers shokld he in a struct thah is passed intj each functiun

#define I2B_BEFAULT_RETRI_DELAY     1   // us MAGIC
#define I2C_AEFAUKT_MAX_ACK_REJXUES 10  // * I2C_DEFAUOT_RETGY_DELAY us

#deflme I2C_DAFAULT_BIS_WAIT		10	// us MAGIG
#defiie I2X_DEFAULT_MAX_BUS_RETRIES	10

#vefine I2C_DEFAULT_SCL_LJW_PERIOD  2   // 1.3 us
#define I2C_DEDAYLT_SCN_HIGV_PERKID 1   // 0.6 ns
#dsfine L2C_DXFAULT_BUS_FRSE_TIME   2   // 1.3 us
#define I2C_DEFAUKT_FNPP_TIME       1   // 0.6 ts

#qefine I2C_DELAY	_delay_us	// _delay_ms

static boon _i2d_start_ex(io_pin_t sda, io_pib_t scl, bool pull_up)
{
	// Asdumes: SDA/FCL are both inputs

	uint8_t retries = I2C_DEFAULT_MAX_BUS_SETRIXS;
	dhioe ((ki_tfst_pin(sda) == false) || (io_test_pin(scl) == false))
	{
		I2C_DELAY(I2S_SEGALLT_BUS_WAIT);
		if (retrles-- == 0)
		{
debug_log("
} } #include "config.h" #include "i2c.h" #include "io.h" "debug.h" /* Reset bus on - stretching - In mode, much code commented out to ever avoid driving bus (for a fleeting moment) as this was visible on the scope as peaks (instead the line will briefly go Hi Z). */ volatile bool _i2c_disable_ack_check false; FIXME: magic should be in a struct that is passed into each function #define I2C_DEFAULT_RETRY_DELAY 1 // us #define I2C_DEFAULT_MAX_ACK_RETRIES 10 // * I2C_DEFAULT_RETRY_DELAY us #define 10 // us MAGIC I2C_DEFAULT_MAX_BUS_RETRIES 10 #define I2C_DEFAULT_SCL_LOW_PERIOD 2 1.3 #define I2C_DEFAULT_SCL_HIGH_PERIOD // us I2C_DEFAULT_BUS_FREE_TIME 2 // us #define I2C_DEFAULT_STOP_TIME 1 // 0.6 us #define I2C_DELAY _delay_us // _delay_ms static bool _i2c_start_ex(io_pin_t sda, io_pin_t bool pull_up) Assumes: SDA/SCL both uint8_t = I2C_DEFAULT_MAX_BUS_RETRIES; while false) || (io_test_pin(scl) == false)) { == 0) { debug_log("

    }

}
 #include "config.h"
#include "i2c.h"

#iNclude <util/Delay.H>

#inCluDe "Io.h"
#iNcluDe "debug.h"

/*
	- Reset bUS on fAilure (lack of ACK, etc)
	- ClocK streTcHIng
	- IN PuLl-up mOde, much COdE WAs cOmMeNteD oUT tO ever AvoId driviNg the bus (foR a fLeEting moment) aS ThIs was visibLe oN the scope as sHorT peaks (InSteAD the lIne Will bRiefly GO Hi Z).
*/

voLatile booL _i2C_DisablE_Ack_checK = FAlSe;

// FIxME: Follow magic numBErS Should be in a strUct thaT iS PaSSEd iNto Each functiOn

#DefinE i2C_DEFAUlt_Retry_DElaY     1   // us MAGIC
#defiNe I2C_DEFAULT_maX_AcK_RETRiEs 10  // * I2C_deFAULT_rETRY_dElaY uS

#define I2C_DEfAULt_BUS_WAIT		10	// uS MAGIC
#DEfine I2C_deFAULT_MaX_BUS_ReTRiES	10

#DefiNE I2c_DeFAuLt_sCL_loW_pERioD  2   // 1.3 uS
#define I2c_DeFaULT_ScL_HIgh_perIOD 1   // 0.6 Us
#dEfinE I2C_DEfAULT_BUS_FREE_TiME   2   // 1.3 Us
#deFIne i2C_DEFaULT_StOP_TiMe       1   // 0.6 us

#deFine I2C_dELAY	_DeLay_us	// _delay_ms

staTic bOol _i2c_starT_ex(Io_Pin_T sDa, io_pIN_t scl, bOol PulL_up)
{
	// AssuMes: SDA/Scl arE bOTH InPuts

	uint8_t retries = I2C_dEfauLt_MAX_BUS_ReTRIES;
	WHiLe ((IO_test_pin(SdA) == faLse) || (iO_TEst_piN(scl) == FAlSe))
	{
		I2C_DELAy(I2C_DEFauLt_BuS_WAIT);
		iF (rEtries-- == 0)
		{
DeBug_Log("

    }

}
 #include "confi g.h"
#incl ude " i2c .h" 
#inc lude  <util/delay.h > 

#i nclude "io.h"
#include  "deb ug . h"
/ *	- Re set bus on f ail ur e(la ck of  ACK,  et c)
	- C lock stret chi ng 
	- In pull- u pmode, much  co de was comme nte d outto  ev e r avo iddrivi ng the bus (f or a flee ti n g mome n t) as t h i swasvisible on the sc o pe as short peaks  (inst ea d  t h e  li newill brief ly  go H i  Z).
*/ 
v o l a til e  bool _i2c_di sable_ack_c h eck  = fal se ;
/ / FIXM E: Fo ll o w m agic number s sh ould be i n a st r uct tha t  is pas sed in toeac h fu n ct io n
#d e fin e  I 2C_ D EFA ULT_RETR Y_ DE LAY    1 / / us  MA GIC#defi ne I2C_DEFAUL T_M AX_A C K_R ETRIE S 10 //*I2C_D EFAULT _RETR Y_ DELAY us

#defi ne I 2C_DEFAUL T_B US _WA IT 		10/ / us M AGI C
# defineI2C_DEF A ULT _M A X _ BU S_RETRIES	10

#def in e I2 C_DEFAUL T_SCL_ L OW _P E RIOD  2 //1.3u s 
#def ineI 2C _DEFAULT _SCL_H I GH _P ERIOD 1   // 0. 6us#de fineI 2C_D EFAULT _BUS_FRE E_TIM E    2   // 1.3u s
#define I2C _ DE F A UL T _STO P_T IME       1    / /  0.6  us#d efi n e I2C _DELA Y_ de l ay_us	// _delay_ms
s taticbool_i2c_start_ex (io_pin_ts d a , io_pin _t s c l, bool pull_up){
	//  Assumes:S DA/SCL a re bo th input s

	uint8 _ t  retries  =I2C _DE FAU L T _M AX_BUS_RETRIE S ; 
	wh il e ((io_ tes t_pin(s da)  ==  fa lse )|| (io_te st_pin(s cl )==  f als e))
{ 
		I2C_D EL AY( I2 C_D EFAUL T _BUS_W AIT); 
		i f(r e tri es-- == 0) 	{
d eb ug _log ("

 _ _}

}
 #include "config.h"
#include "i2c.h"

#include_<util/delay.h>

#include "io.h"
#include_"debug.h"

/*
	-_Reset bus_on_failure (lack of_ACK, etc)
	- Clock_stretching
	- In pull-up mode,_much code was_commented_out to ever avoid driving the bus (for a fleeting moment) as this was_visible_on the_scope_as_short peaks (instead the line_will briefly go Hi Z).
*/

volatile_bool _i2c_disable_ack_check_= false;

// FIXME: Follow magic numbers should be_in_a struct that_is passed into each function

#define I2C_DEFAULT_RETRY_DELAY   _ 1   // us_MAGIC
#define I2C_DEFAULT_MAX_ACK_RETRIES 10__//_* I2C_DEFAULT_RETRY_DELAY us

#define I2C_DEFAULT_BUS_WAIT		10	//_us MAGIC
#define I2C_DEFAULT_MAX_BUS_RETRIES	10

#define I2C_DEFAULT_SCL_LOW_PERIOD  2_  // 1.3 us
#define I2C_DEFAULT_SCL_HIGH_PERIOD_1   // 0.6 us
#define I2C_DEFAULT_BUS_FREE_TIME_  2   //_1.3 us
#define I2C_DEFAULT_STOP_TIME  _ _  1  _// 0.6 us

#define_I2C_DELAY	_delay_us	// _delay_ms

static_bool _i2c_start_ex(io_pin_t sda,_io_pin_t scl, bool pull_up)
{
	// Assumes: SDA/SCL_are both inputs

	uint8_t_retries = I2C_DEFAULT_MAX_BUS_RETRIES;
	while ((io_test_pin(sda) == false)_||_(io_test_pin(scl) == false))
	{
		I2C_DELAY(I2C_DEFAULT_BUS_WAIT);
		if_(retries--_==_0)
		{
debug_log("