/*
InDRIVE v4 Application (chip like: FT24C01, Selfprg Must Be Enabled!!! )
Fuse BYTES
Low(0x7A) : High(0xEE) :
SPIEN = 1 SELFPRGEN = 1
EESAVE = 0 DWEN = 0
WDTON = 0 BODLEVEL1 = 0
CKDIV8 = 0 BODLEVEL0 = 0
SUT1 = 0 RSTDISBL = 1
SUT0 = 1
CKSEL1 = 0
CKSEL0 = 1
*/
.include "tn13def.inc"
/* On/Off Defines */
.equ OFF =0
.equ ON =1
/* Chip Pinouts */
.equ FT24Cxx =0
.equ InDRIVE_v4 =1
/* Reset Controller Enable/Disable */
.equ RESET_CNT =OFF
/* Chip Pinouts Define: InDrivev4/Regular I2C Chip */
.equ CHIP_PINOUTS =FT24Cxx
.equ DEBUG =OFF
/* I2C Mode Define MODE 1/MODE 2 */
.equ MODE_1 =1
.equ MODE_2 =2
.EQU I2C_MODE =MODE_1
/* Define I2C Parameters */
/* Page Size for Write in BYTES 4/8/16 */
/* 128/256 Size in MODE 1 Protocol can't receive more than 128 Bytes */
.IF I2C_MODE == MODE_2
.MESSAGE "Compile for I2C Mode 2"
.equ I2C_PAGE_SIZE =8
.equ I2C_EEP_SIZE =256
.ELSE
.MESSAGE "Compile for I2C Mode 1"
.equ I2C_PAGE_SIZE =4
.equ I2C_EEP_SIZE =128
.ENDIF
/*
Modes Define
A - Address
iD - Data From Master
oD - Data To Master
MODE 1
Write - [START][AAAAAAA0][iD + 0]...[iD + I2C_PAGE_SIZE - 1][STOP]
Read - [START][AAAAAAA1][oD + 0]...[oD + I2C_EEP_SIZE - 1][STOP]
MODE 2
Write - [START][10100000][AAAAAAAA][iD + 0]...[iD + I2C_PAGE_SIZE - 1][STOP]
Read - [START][10100001][oD + 0]...[oD + I2C_EEP_SIZE - 1][STOP]
*/
/*
I2C slave, fSCL = 400kHz
FULLY Implemented I2C Protocol for 24xx01/24xx02
And RESET Controller FOR InDRIVE(v4)
**************************************************************
ATTINY13A I2C Configuration
**************************************************************
pin configuration InDRIVE v4:
,---_---.
(RESET/PB5) nc |1 8| VCC
(PB3) inRST |2 7| SCL (PB2)
(PB4) outRST |3 6| EMU24X (PB1) SDA pin from CORE
GND |4 5| nc (PB0) unused SDA pin
`-------'
pin configuration FT24C01:
,---_---.
(RESET/PB5) nc |1 8| VCC
(PB3) nc |2 7| nc (PB2)
(PB4) nc |3 6| SCL (PB1) SCL pin I2C
GND |4 5| SDA (PB0) SDA pin I2C
`-------'
pin configuration FT24C02:
,---_---.
(RESET/PB5) A0 |1 8| VCC
(PB3) A1 |2 7| nc (PB2)
(PB4) A2 |3 6| SCL (PB1) SCL pin I2C
GND |4 5| SDA (PB0) SDA pin I2C
`-------'
*/
/* Pins Define */
.IF CHIP_PINOUTS == InDRIVE_v4
.MESSAGE "Chip Pinouts: InDRIVE v4"
.equ EMU24X = 1
.equ SCL = 2
.ELSE
.equ EMU24X = 0
.equ SCL = 1
.MESSAGE "Chip Pinouts: Regular 24Cxx"
.ENDIF
.equ SDA = EMU24X
.equ ACK = SDA
.equ inRST = 3
.equ outRST = 4
.def TMPnoINT =R19
.def Counter =R3
.def CounterInWrite =R4
.def SREGST =R5
/* Real ATTINY13A FLASH Page SIZE In Bytes */
.equ PAGESIZEB =(PAGESIZE*2)
/* SRAM Mapping */
.DSEG
.IF I2C_MODE == MODE_2
_I2c_device_inaddr: .BYTE 1 /* MODE 2 Region */
_I2c_device_myaddr: .BYTE 1
.ENDIF
_valSPMCSR: .BYTE 1
_I2c_data_buffer: .BYTE I2C_PAGE_SIZE
_I2c_FLASH_buffer: .BYTE PAGESIZEB
.cseg
/* Read/Write Pointers */
.def I2c_start_addr =R16
.def I2c_wr_counter =R17
.def I2c_wr_pointer =R18
.def I2c_rd_pointer =R21
.def _PINB =R20
.IF I2C_MODE != MODE_2
.IF I2C_MODE != MODE_1
.error "Invalid mode for I2C Selected, please correct I2C_MODE define"
.ENDIF
.ENDIF
.cseg
.org 0//Reset
.IF RESET_CNT == ON
rjmp WaitinRSTHI ;RESET
reti ;INT0addr = 0x0001 ; External Interrupt 0
rjmp ResetInProcess ;PCI0addr = 0x0002 ; External Interrupt Request 0
.ELSE
rjmp main ;RESET
reti ;INT0addr = 0x0001 ; External Interrupt 0
reti ;PCI0addr = 0x0002 ; External Interrupt Request 0
.ENDIF
reti ;OVF0addr = 0x0003 ; Timer/Counter0 Overflow
reti ;ERDYaddr = 0x0004 ; EEPROM Ready
reti ;ACIaddr = 0x0005 ; Analog Comparator
reti ;OC0Aaddr = 0x0006 ; Timer/Counter Compare Match A
reti ;OC0Baddr = 0x0007 ; Timer/Counter Compare Match B
reti ;WDTaddr = 0x0008 ; Watchdog Time-out
reti ;ADCCaddr = 0x0009 ; ADC Conversion Complete
// *******************************************************************************************
// ** Reset Processor **
// *******************************************************************************************
.IF RESET_CNT == ON
.MESSAGE "Reset Controller Function is: ON"
ResetInProcess: ;Proccess reset
sbic pinb,inRST ;Process reset on falling edge
reti
WaitinRSTHI:
cli
;Wait ~80 mS 0x04E360 on 9.6MHz
ldi R16,0x10
ldi R17,0xE3
ldi R18,0x60
;Set RESET Enable
cbi PORTB,outRST
_CntLO:
dec R18
BRNE _CntLO
_CntME:
dec R17
BRNE _CntLO
_CntHI:
dec R16
BRNE _CntLO
; And Clear Iterrupt flag for normal exit
ldi R16,(1 << PCIF)
out GIFR,R16
.ELSE
.MESSAGE "Reset Controller Function is: OFF"
.ENDIF // RESET_CNT == ON
// *******************************************************************************************************
// ** Main Programm **
// *******************************************************************************************************
main:
;init STACK
ldi TMPnoINT,low(RAMEND)
out SPL,TMPnoINT
;init IO
ldi TMPnoINT,0x00
out MCUCR,TMPnoINT
;Outputs to HI (Pull UP)
ldi TMPnoINT,0xFF
out PORTB,TMPnoINT
.IF RESET_CNT == ON
;Output enable for outRST, all other for input
sbi PORTB, outRST
sbi PINB, inRST
sbi DDRB,outRST ; Output Enable
;Init Interrupt
ldi TMPnoINT, (1 << inRST) ; set pin change interrupt for inRST
out PCMSK, TMPnoINT
ldi TMPnoINT, (1<<PCIE) ; unmask interrupt PCIE
out GIMSK,TMPnoINT
SEI ;Enable PCIE Int Processing
.ELSE
CLI ; Disable Reset Controller
.ENDIF
.IF I2C_MODE == MODE_2
/* Set I2C Device Address */
ldi TMPnoINT, 0xA0
sts _I2c_device_myaddr,TMPnoINT
.ENDIF
/* Clear Buffer Pointers */
clr I2c_wr_counter
clr I2c_wr_pointer
clr I2c_start_addr
clr I2c_rd_pointer
main_loop:
lI2c_get:
sbi portb,ack
sbis pinb,scl ;wait for SCL&SDA=1
rjmp lI2c_get
sbis pinb,sda
rjmp lI2c_get
lI2c_wait_for_start:
sbis pinb,scl ;wait for SCL=1,SDA=0 (START)
rjmp lI2c_get
sbic pinb,sda
rjmp lI2c_wait_for_start
lI2c_get_0: ;clear receive area
.IF I2C_MODE == MODE_2
clr r22
sts _I2c_device_inaddr,r22
.ENDIF
lI2c_get_1: ;get 1st byte
sbi portb,ack
lI2c_10: ;wait for SCL=0
sbic pinb,scl
rjmp lI2c_10
ldi r22,8 ;bits to receive=8
.IF I2C_MODE == MODE_2
lds r23,_I2c_device_myaddr ;I2C address->R23
.ENDIF
lI2c_11:
in _PINB, pinb
sbrs _PINB,scl ;wait for SCL=1
rjmp lI2c_11
sbrc _PINB,sda
rjmp lI2c_13
lI2c_12: ;if SDA=0
sbic pinb,sda
rjmp lI2c_wait_for_start ; SDA 0->1? I2CSTOP! (unexpected: wait for next start)
sbic pinb,scl
rjmp lI2c_12 ; loop while SCL=1
clc ; SDA=0->C
rjmp lI2c_15
lI2c_13: ;if SDA=1
sbis pinb,sda
rjmp lI2c_get_1 ; SDA 1->0? I2CSTART! (repeated start)
sbic pinb,scl
rjmp lI2c_13 ; loop while SCL=1
sec ; SDA=1->C
lI2c_15:
rol r24
dec r22
brne lI2c_11 ;loop to next bit
.IF I2C_MODE == MODE_2
sts _I2c_device_inaddr,r24
SUB r24,r23 ;my address?
cpi r24,2
brlo lI2c_ack_1
rjmp lI2c_exit ; no: exit and wait for next start
.ENDIF
lI2c_ack_1: ; yes: generate ack
clr I2c_wr_counter ; Clear Write Buffer Pointers
clr I2c_wr_pointer
clr I2c_start_addr
cbi portb,ack
sbi ddrb,ack ;pinb.ack = output (ACK)
lI2c_ack_10:
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_ack_10
lI2c_ack_11:
sbic pinb,scl ;wait for SCL=0
rjmp lI2c_ack_11
/*************************************************************************
* Select Read/Write
**************************************************************************/
.IF I2C_MODE == MODE_2
cpi r24,0
breq lI2c_get_2
.ELSE
mov I2c_start_addr,r24 ; Extract Received Address
lsr I2c_start_addr ; And Read/Write BIT
mov I2c_rd_pointer,I2c_start_addr ; Upadate Read Address
brcs lI2c_send_new_byte
rjmp lI2c_ack_25
.ENDIF
/*************************************************************************
* Sending Data to Master
**************************************************************************/
lI2c_send_new_byte: ;read address received
sbi ddrb,sda ;pinb.sda = output (will send data)
/* Read From Flash */
andi I2c_rd_pointer, (I2C_EEP_SIZE - 1)
LDI ZH,high(MemoryBlockFLASH<<1)
LDI ZL,low(MemoryBlockFLASH<<1)
add ZL,I2c_rd_pointer
inc I2c_rd_pointer
lpm R24, Z
ldi r22,8
.IF DEBUG == 1
rjmp lI2c_s1
/* Read From SRAM */
ReadFromSram:
andi I2c_rd_pointer, (I2C_EEP_SIZE - 1)
LDI ZH,high(_I2c_device_inaddr)
LDI ZL,low(_I2c_device_inaddr)
add ZL,I2c_rd_pointer
inc I2c_rd_pointer
ld R24, Z
ldi r22,8
.ENDIF
lI2c_s1:
cbi portb,sda
sbrc r24,7
sbi portb,sda
lI2c_s2:
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_s2
lsl r24
lI2c_s3:
sbic pinb,scl ;wait for SCL=0
rjmp lI2c_s3
dec r22
brne lI2c_s1
sbi portb,sda ;pinb.sda = 0 (will generate ACK)
cbi ddrb,sda ;pinb.sda = input (will receive data)
lI2c_s4: ;wait acknowloge receive
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_s4
lI2c_s5:
sbic pinb,scl ;wait for SCL=0
rjmp lI2c_s5
sbis pinb,sda ;if answer received, - continue
rjmp lI2c_send_new_byte
rjmp lI2c_wait_for_start_stop ;wait for next start/stop
/*************************************************************************
* Receiving Data from Master
**************************************************************************/
.IF I2C_MODE == MODE_2
lI2c_get_2: ;write address received: get 2nd byte
cbi ddrb,ack ;pinb.ack = output (ACK)
lI2c_20: ;wait for SCL=0
sbic pinb,scl
rjmp lI2c_20
ldi r22,8 ;bits to receive=8
lI2c_21:
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_21
sbic pinb,sda
rjmp lI2c_23
lI2c_22: ;if SDA=0
sbic pinb,sda
rjmp lI2c_stop ; SDA 0->1? I2CSTOP! (finish this sequence)
sbic pinb,scl
rjmp lI2c_22 ; loop while SCL=1
clc ; SDA=0->C
rjmp lI2c_25
lI2c_23: ;if SDA=1
sbis pinb,sda
rjmp lI2c_get_1 ; SDA 1->0? I2CSTART! (repeated start)
sbic pinb,scl
rjmp lI2c_23 ; loop while SCL=1
sec ; SDA=1->C
lI2c_25:
rol r24
dec r22
brne lI2c_21 ;loop to next bit
mov I2c_start_addr,r24 ;store received I2C address
mov I2c_rd_pointer,I2c_start_addr ; Upadate Read Address
.ENDIF
ReceiveAcknowloge:
cbi portb,sda
sbi ddrb,sda
lI2c_ack_21:
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_ack_21
sbic pinb,sda
rjmp lI2c_ack_23
lI2c_ack_22: ;if SDA=0
sbic pinb,sda
rjmp lI2c_stop ; SDA 0->1? I2CSTOP! (finish this sequence)
sbic pinb,scl
rjmp lI2c_ack_22 ; loop while SCL=1
rjmp lI2c_ack_25
lI2c_ack_23: ;if SDA=1
sbis pinb,sda
rjmp lI2c_get_1 ; SDA 1->0? I2CSTART! (repeated start)
sbic pinb,scl
rjmp lI2c_ack_23 ; loop while SCL=1
lI2c_ack_25:
cbi ddrb,ack ;pinb.ack = input
LDI ZH,high(_I2c_data_buffer)
LDI ZL,low(_I2c_data_buffer)
lI2c_get_3: ;get 3rd byte
lI2c_30: ;wait for SCL=0
sbic pinb,scl
rjmp lI2c_30
ldi r22,8 ;bits to receive=8
mov TMPnoINT, I2c_wr_pointer
andi TMPnoINT, (I2C_PAGE_SIZE - 1)
add ZL,TMPnoINT
lI2c_31:
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_31
sbic pinb,sda
rjmp lI2c_33_
lI2c_32: ;if SDA=0
sbic pinb,sda
rjmp lI2c_stop_ ; SDA 0->1? I2CSTOP! (finish this sequence)
sbic pinb,scl
rjmp lI2c_32 ; loop while SCL=1
clc ; SDA=0->C
rjmp lI2c_35
lI2c_33_:
lI2c_33: ;if SDA=1
sbis pinb,sda
rjmp lI2c_start_ ; SDA 1->0? I2CSTART! (repeated start)
sbic pinb,scl
rjmp lI2c_33 ; loop while SCL=1
sec ; SDA=1->C
lI2c_35:
rol r24
dec r22
brne lI2c_31 ;loop to next bit
inc I2c_wr_counter
inc I2c_wr_pointer
inc I2c_rd_pointer
st Z,R24
rjmp ReceiveAcknowloge
lI2c_wait_for_start_stop: ;wait for start/stop
lI2c_ss_1:
sbis pinb,scl ;wait for SCL=1
rjmp lI2c_ss_1
sbic pinb,sda
rjmp lI2c_ss_3
lI2c_ss_2: ;if SDA=0
sbic pinb,sda
rjmp lI2c_stop ; SDA 0->1? I2CSTOP! (finish this sequence)
sbic pinb,scl
rjmp lI2c_ss_2 ; loop while SCL=1
rjmp lI2c_ss_1
lI2c_ss_3: ;if SDA=1
sbis pinb,sda
rjmp lI2c_get_1 ; SDA 1->0? I2CSTART! (repeated start)
sbic pinb,scl
rjmp lI2c_ss_3 ; loop while SCL=1
rjmp lI2c_ss_1 ; SDA=1->C
lI2c_stop_:
lI2c_stop: ;if stop,
cbi ddrb, sda
cpi I2c_wr_counter,0x00
brne WriteFlashRom
lI2c_exit:
rjmp lI2c_get
lI2c_start_:
rjmp lI2c_get_1
WriteFlashRom:
cli ; Disable INTERRUPTS
rcall WriteReceivedData
clr I2c_wr_counter ; Clear Write Buffer Pointers
clr I2c_wr_pointer
sei ; Enable INTERRUPTS
rjmp lI2c_get
/***********************************************************
* Write internal FLASH by page
************************************************************/
//--------- Erase/Program Page FROM FLASH to SRAM
BackupFlashPage:
ldi YH,high(_I2c_FLASH_buffer) ; Load SRAM Buffer
ldi YL,low(_I2c_FLASH_buffer)
mov TMPnoINT, I2c_start_addr
andi TMPnoINT, ((I2C_EEP_SIZE - 1) & ~(PAGESIZEB - 1))
ldi ZH,high(MemoryBlockFLASH << 1)
ldi ZL,low(MemoryBlockFLASH << 1)
adc ZL,TMPnoINT
brcc NoIncBackupPage
inc ZH
NoIncBackupPage:
ldi R22, PAGESIZEB
BackupPageLoop:
lpm TMPnoINT,Z+
st Y+,TMPnoINT
dec R22
brne BackupPageLoop
ret
//--------- Add received data to SRAM Page
WriteReceivedData:
/* Have Data For Write ? */
cpi I2c_wr_counter,0x00
brne DataForWritePresent
ret
DataForWritePresent:
rcall BackupFlashPage
ldi YH,high(_I2c_FLASH_buffer) ; Load SRAM Backup Buffer Address
ldi YL,low(_I2c_FLASH_buffer)
ldi XH,high(_I2c_data_buffer) ; Load SRAM Receive Buffer Address
ldi XL,low(_I2c_data_buffer)
mov TMPnoINT, I2c_start_addr
andi TMPnoINT, (PAGESIZEB - 1)
adc YL,TMPnoINT
brcc NoIncPreparePage
inc YH
NoIncPreparePage:
mov CounterInWrite,TMPnoINT
/* Make PAGE SIZE Window */
cpi I2c_wr_counter, I2C_PAGE_SIZE
brlo PreparePageLoop
ldi I2c_wr_counter, I2C_PAGE_SIZE
PreparePageLoop:
ld R22,X+
st Y+,R22
dec I2c_wr_counter
breq NormalPageWrite
mov TMPnoINT,CounterInWrite
cpi TMPnoINT, (PAGESIZEB - 1)
brne NoWritePageSizeExceeded
rcall Erase_page_by_SPM
rcall Write_Current_Page
inc CounterInWrite
inc I2c_start_addr
dec I2c_wr_pointer
rjmp WriteReceivedData
NoWritePageSizeExceeded:
inc CounterInWrite
inc I2c_start_addr
dec I2c_wr_pointer
rjmp PreparePageLoop
NormalPageWrite:
rcall Erase_page_by_SPM
rcall Write_Current_Page
inc I2c_start_addr
dec I2c_wr_pointer
ret
//--------- Erase page
Erase_page_by_SPM:
ldi ZH,high(MemoryBlockFLASH << 1)
ldi ZL,low(MemoryBlockFLASH << 1)
mov TMPnoINT,I2c_start_addr
andi TMPnoINT, ((I2C_EEP_SIZE - 1) & ~(PAGESIZEB - 1)) /* Mask Maximum Data Size and Mask Out Real Flash Page Size */
adc ZL,TMPnoINT
brcc NoIncErasePage
inc ZH
NoIncErasePage:
/* Load Erase Instruction */
ldi TMPnoINT, (1<<PGERS) | (1<<SPMEN)
sts _valSPMCSR, TMPnoINT
rcall Wait_spm ;CPU Halted while erase
ret
//Wite page
Write_Current_Page:
ldi XH,high(_I2c_FLASH_buffer) ; Load SRAM Backup Buffer Address
ldi XL,low(_I2c_FLASH_buffer)
ldi ZH,high(MemoryBlockFLASH << 1)
ldi ZL,low(MemoryBlockFLASH << 1)
mov TMPnoINT,I2c_start_addr
andi TMPnoINT, ((I2C_EEP_SIZE - 1) & ~(PAGESIZEB - 1)) /* Mask Maximum Data Size and Mask Out Real Flash Page Size */
adc ZL,TMPnoINT
brcc NoIncWritePage
inc ZH
NoIncWritePage:
ldi TMPnoINT, (PAGESIZE)
mov Counter, TMPnoINT
movw Y,Z ; Store Z in Y reg
clr ZL ;Clear Z
clr ZH
Fill_Page_Buffer_loop:
ld R0, X+
ld R1, X+
ldi TMPnoINT, (1<<SPMEN) ;Write word into page buffer
sts _valSPMCSR, TMPnoINT
rcall Wait_spm ;CPU Halted while erase
adiw Z, 2
dec Counter
brne Fill_Page_Buffer_loop
movw Z,Y ; Restore Z from Y reg
ldi TMPnoINT, (1<<PGWRT) | (1<<SPMEN)
sts _valSPMCSR, TMPnoINT
rcall Wait_spm ;CPU Halted while erase
ret
Do_spm:
; check for previous SPM complete
Wait_spm:
in TMPnoINT, SPMCSR
sbrc TMPnoINT, SPMEN
rjmp Wait_spm
Wait_ee:
sbic EECR, EEWE
rjmp Wait_ee
; SPM timed sequence
lds TMPnoINT, _valSPMCSR
out SPMCSR, TMPnoINT
spm
ret
.cseg
.org (0x200 - (I2C_EEP_SIZE/2))
MemoryBlockFLASH: ; Bytes in Flash
.DB 0x55, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
.DB 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F
.DB 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F
.DB 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F
.DB 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F
.DB 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F
.DB 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F
.DB 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D
; Mark End of EEP DATA
.org (0x1FF)
.db 0x7E,0x7F
.MESSAGE "I2C For Read/Write Processing SELFPRGEN FUSE Must Be Enabled!!!"
.eseg
MemoryBlockEEP: ; Bytes in EEP
.DB 0x55, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
.DB 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F
.DB 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F
.DB 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F
суббота, 19 декабря 2020 г.
24x01 I2C на ATTINY13 без TWI
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