ATMEGA128-16AU programlama (JTAG)

ATmega128 ve JTAG Haberleşmesi​

1. JTAG Arayüzü Nedir ve Neden Gerekli?​

• Hız: Büyük .hex dosyalarını ISP'ye göre çok daha hızlı yükler.
• Hata Ayıklama: Kodun neresinde hata olduğunu, değişkenlerin anlık değerlerini işlemci çalışırken görmenizi sağlar.
• Pin Erişimi: İşlemcinin tüm giriş-çıkış uçlarını yazılımsal olarak test etmenize imkan tanır.

2. ATmega128 JTAG Bağlantı Şeması​

• TCK (Pin 52): Test Clock (Saat sinyali).
• TMS (Pin 51): Test Mode Select (Mod seçimi).
• TDO (Pin 50): Test Data Out (Veri çıkışı).
• TDI (Pin 49): Test Data In (Veri girişi).
• VCC & GND: Programlayıcı ve işlemcinin aynı referans voltajında olması şarttır.

3. JTAG Programlayıcı Seçenekleri​

• AVR JTAG ICE: Atmel'in klasik ve en kararlı JTAG programlayıcısıdır.
• JTAGICE3 / Atmel-ICE: Yeni nesil, ultra hızlı ve tüm Atmel ailesini destekleyen profesyonel araçlardır.
• USB JTAG Adaptörleri: FT232 tabanlı uygun fiyatlı klonlar da uydudoktoru üyeleri tarafından sıkça tercih edilir.

​

• full motherboard / prototype board for ATmega128
• same dimensions as Vers. 1.1 but with additional ISP header
• led indicates programming mode
• lines on right header are switched off automatically when in programming mode
  (prohibits "shortages" during programming with the rest of circuitry)
• 100% pin compatible with Vers. 1.1
• super thin only 34mm x 40mm x 8mm (mini module)
• all pins are available on headers (2,54mm-/0,1" pitch) 2x15pins each
• high computing power
• easy to use: just connect to power supply (+5V) and program device
• 2 crystals: 16 MHz system clock, 32.768 kHz asynchron timer/counter0
• separate grounds: analog and digital
• large continues ground plane / reference plane for improved signal integrity and shielding
• board fits in 2.54mm pitch prototype PCB
  
  

• ATmega128L option - low voltage version (2.7V-5.5V) with ATmega128L-8AI / ATmega128L-8AU and 8 MHz crystal
  ​
• AT90CAN128 option - AT90CAN128-16AI / AT90CAN128-16AU with CAN Controller - V2.0A and V2.0B
  (CAN 2.0A, CAN 2.0B)
  ​
• ATmega128-16 with 14.7456 MHZ crystal for serial communication (USART1 and USART2) without baud rate error​

​

​

Pinout:
ATmega128, ATmega128-16AU
ATmega1281, ATmega1281-16AU
ATmega2561, ATmega2561-16AU

• 128KB FLASH for ATmega128
• 256KB FLASH for ATmega2561
• 4 KB SRAM (internal RAM)
• 4 KB EEPROM
• 64-pin Version
• 53 I/O pins
• hardware multiplier
• programming lock for software security
• SPI Interface for In-System Programming
• real time counter with separate oscillator
• 8-channel, 10-bit ADC:
  - 8 single-ended channels
  - 7 differential channels
  - 2 differential channels with programmable gain at 1x, 10x, or 200x
• dual programmable serial USARTs (2x UART)
• Master/Slave SPI serial interface
• 2x 8bit timer, 2x 16bit timer
• 16 MHz RISC

AVR ATmega128 datasheet (pdf)

AVR ATmega2561 datasheet (pdf)

​

• full motherboard / prototype board for ATmega128
• led indicates programming mode
• lines on right header are switched off automatically when in programming mode
  (prohibits "shortages" during programming with the rest of circuitry)
• 100% pin compatible with Vers. 1.1 and Vers. 1.2 ATmega128 TinyBoard
• small dimensions 34mm x 47mm (mini module)
• all pins are available on headers (2,54mm-/0,1" pitch) 2x15pins each
• high computing power
• easy to use: just connect to power supply (+5V) and program device
• 2 crystals: 16 MHz system clock, 32.768 kHz asynchron timer/counter0
• separate grounds: analog and digital
• large continues ground plane / reference plane for improved signal integrity and shielding
  
• USB-UART-Bridge Silicon Labs CP2102 (SiLabs CP2102)
  USB2COM (USB2SERIAL) / COM2USB (SERIAL2USB) / USB2 Full Speed
  converter onboard for COM1 (serial to USB converter for COM1 / USART1, second UART)
  driver support: Windows98/2000/XP, Linux, MacOS
  
• device can be powered from USB line (jumper)
• ISP and JTAG header
  
• 
  
  fully assembled board includes:​

• 
  
  female connectors 2 pieces (2x15 pins) are also available​

• 
  
  ATmega128-16 with 14.7456 MHZ crystal for serial communication (USART1 and USART2) without baud rate error​

board fits in 2,54mm pitch prototype PCB
​

Features Atmel 8Bit AVR-Flash Microcontroller, AVR 8-Bit RISC

Pinout:
ATmega128, ATmega128-16AU
ATmega1281, ATmega1281-16AU
ATmega2561, ATmega2561-16AU

• 128KB FLASH for ATmega128
• 256KB FLASH for ATmega2561
• 4 KB SRAM (internal RAM)
• 4 KB EEPROM
• 64-pin Version
• 53 I/O pins
• hardware multiplier
• programming lock for software security
• SPI Interface for In-System Programming
• real time counter with separate oscillator
• 8-channel, 10-bit ADC:
  - 8 single-ended channels
  - 7 differential channels
  - 2 differential channels with programmable gain at 1x, 10x, or 200x
• dual programmable serial USARTs (2x UART)
• Master/Slave SPI serial interface
• 2x 8bit timer, 2x 16bit timer
• 16 MHz RISC

AVR ATmega128 datasheet (pdf)

AVR ATmega2561 datasheet (pdf)

​

• used for progamming of ATmega128 TinyBoard or any other ISP programmable controller from Atmel
• 100% compatible with Atmel STK200/300
• works with:

• long ribbon cable
• modern SMD technology
• integrated bus driver, target can be left connected to ISP connector while device is running
  ISP lines are automatically switched through when in programming mode
  

​

• Downloading code to the target processor, e.g. AVR ATmega128 microcontroller, via PonyProg (WINDOWS 2000 / XP)

Configuration and programming instructions for ATmega128 Development Board “TinyBoard” via PonyProg:
STEP 1:
For ATmega128 TinyBoard V1.1 connect “HEADER A” to ISP programmer as shown:

For ATmega128 TinyBoard V1.2 connect ISP header from board with ISP programmer:

STEP 2: Download PonyProg from PonyProg-download and install PonyProg.
STEP 3: Connect programmer to parallel port of your PC.
STEP 4: Configure ISP programmer (dongle) by “Setup->Interface Setup”, use the following settings.

STEP 5: Verify presence of ISP programmer by using “Probe”.
STEP 6: Do “Setup -> Calibration”
STEP 7: Select “Device->AVR Micro->ATmega128”
STEP 8: Load your program file *.hex. using “File-> Open Device File”.
SETP 9: Now you can program your device by using “Command -> Write all”.

You can change pre-configured settings (fuse bits) by “Command -> Security and Configuration Bits”.
​

• Downloading code to the target processor, e.g. AVR ATmega128, ATmega1280 microcontroller, via avrdude (LINUX, Windows 2000 / XP)
  
  Avrdude is an open-source program for download / upload code to AVR microcontroller flash and eeprom.
  Download code from avrdude-download.
  The example is chown as Windows version with Windows parallel port declaration "-P lpt1".
  For Linux use "-P /dev/parport0" instead.
• avrdude (Version 5.x)

• Special notes for ISP-programming of ATmega2560 / ATmega2561, i.e. upload code to flash, using avrdude
  
  
  Because AVR ATmega2560 and ATmega2561 devices are not supported by avrdude by now (Version WinAVR-20060125) use ATmega1280 mode instead:​
  C:\WinAVR\examples\ATmega256xdemo>avrdude -p atmega1280 -c stk200 -P lpt1 -U flash:w:demo.bin:r
  
  avrdude: AVR device initialized and ready to accept instructions
  
  Reading | ################################################## | 100% 0.00s
  
  avrdude: Device signature = 0x1e9801
  avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
  
  To disable this feature, specify the -D option.
  avrdude: erasing chip
  avrdude: reading input file "demo.bin"
  avrdude: writing flash (486 bytes):
  
  Writing | ################################################## | 100% 0.17s
  
  avrdude: 486 bytes of flash written
  avrdude: verifying flash memory against demo.bin:
  avrdude: load data flash data from input file demo.bin:
  avrdude: input file demo.bin contains 486 bytes
  avrdude: reading on-chip flash data:
  
  Reading | ################################################## | 100% 0.16s
  
  avrdude: verifying ...
  avrdude: 486 bytes of flash verified
  
  avrdude: safemode: Fuses OK
  
  avrdude done. Thank you.​
• avrdude version (4.x) >avrdude -p atmega128 -c stk200 -P lpt1 -e -i mmega128.hex
  or just
  >avrdude -p m128 -c stk200 -e -i mmega128.hex

• Downloading code to the target processor, e.g. AVR ATmega128 microcontroller, via uisp (Linux)
  
  UISP is a tool for AVR (and AT89S) microcontrollers which can interface to many hardware in-system programmers.
  Download code from uisp-download.

Pinout:
ATmega128, ATmega128-16AU
ATmega1281, ATmega1281-16AU
ATmega2561, ATmega2561-16AU

• 128KB FLASH for ATmega128
• 256KB FLASH for ATmega2561
• 4 KB SRAM (internal RAM)
• 4 KB EEPROM
• 64-pin Version
• 53 I/O pins
• hardware multiplier
• programming lock for software security
• SPI Interface for In-System Programming
• real time counter with separate oscillator
• 8-channel, 10-bit ADC:
  - 8 single-ended channels
  - 7 differential channels
  - 2 differential channels with programmable gain at 1x, 10x, or 200x
• dual programmable serial USARTs (2x UART)
• Master/Slave SPI serial interface
• 2x 8bit timer, 2x 16bit timer
• 16 MHz RISC