DuPAL
Quick start
You will need:
- Ubuntu 20.04
- Assembled DuPAL 2.0 w/ 20 pin ZIF installed
- ATMEGA328P blank / in any state
- DuPAL power supply and USB serial
- avrdude compatible programmer
- I used avrispmkII
- PAL16L8
- Optional: tool to flash PAL16L8
- TL866 won't work :(
Quick flash
For more information see the main page
Pre-compiled hex files: https://proghq.org/media/dupal/
mkdir ~/dupal cd ~/dupal sudo apt-get install -y avrdude minicom wget https://proghq.org/media/dupal/optiboot_v8.0_atmega328_57600.hex wget https://proghq.org/media/dupal/dupal_v0.1.2.hex
ISP connection:
* Pin 1 (red stripe in cable) towards crystal * Notch faces towards ATMEGA
You need an avrdude compatible programmer. To see the list of compatible programmers type
avrdude -c help
Once you know the flag you need, here's an example assuming avrispmkII:
avrdude -v -c avrispmkII -P usb -p atmega328p -e -u \ -U efuse:w:0xFD:m \ -U hfuse:w:0xDE:m \ -U lfuse:w:0xFF:m \ -U flash:w:optiboot_v8.0_atmega328_57600.hex
You should see a green blinky LED
avrdude -v -c avrispmkII -P usb -p atmega328p -u -D \ -U flash:w:dupal_v0.1.2.hex
The green blinky might stop. Hit the reset button and it should blink again
Start up a serial port at 57600 baud using your favorite terminal emulator such as:
minicom -b 57600 -D /dev/ttyUSB0
Hit "reset" and you should see:
(blinky for a few seconds)
Then:
DuPAL - 0.1.2 REMOTE_CONTROL_ENABLED
If you see this, congrats! your DuPAL is flashed and ready to go! Press ^A and then x to exit minicom
A healthy board should have a steady red power LED and a brief green blink at power on
Quick test
For more information see the main page
cd ~/dupal wget https://proghq.org/media/dupal/dupal-analyzer-0.1.4-5430dab.jar java -jar dupal-analyzer-0.1.4-5430dab.jar
Example output:
$ java -jar dupal-analyzer-0.1.4-5430dab-jar-with-dependencies.jar -h [main] INFO info.hkzlab.dupal.analyzer.App - DuPAL Analyzer 0.1.4 [main] ERROR info.hkzlab.dupal.analyzer.App - Wrong number of arguments passed. dupal_analyzer <serial_port> <pal_type> [<output_file> hex_output_mask] Where <pal_type> can be: 10L8 12H6 16L8 20L8 16R4 16R6 16R8 20R4 20R6 20R8
Burn trackstar128_u33_pal16l8a2nc.jed (FIXME: instructions)
wget https://proghq.org/media/dupal/trackstar128_u33_pal16l8a2nc.jed
Testing:
Turn off DuPAL Insert PAL into 20 pin socket Turn on DuPAL java -jar dupal-analyzer-0.1.4-5430dab-jar-with-dependencies.jar /dev/ttyUSB0 16L8 out.json Both the activity green light and the "20 pin active" LED should turn on Let run. Took just over a minute on my setup Note: .json file will not be produced
Sample output:
$ java -jar dupal-analyzer-0.1.4-5430dab-jar-with-dependencies.jar /dev/ttyUSB0 16L8 out.json [main] INFO info.hkzlab.dupal.analyzer.App - DuPAL Analyzer 0.1.4 [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - detectIOTypeMask -> Starting IO type detection... This could take a while. [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - detectIOTypeMask -> Currently detected mask is 07 [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - Detected the following IO as Outputs mask: 07 [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - Now, turn OFF and ON again the DuPAL to reset the PAL and run this tool again by specifying the mask and output file.
Now re-run with the suggested mask option:
java -jar dupal-analyzer-0.1.4-5430dab-jar-with-dependencies.jar /dev/ttyUSB0 16L8 out.json 07
Sample output:
Testing
With no chip in it takes about 9 minutes and gives a mask of 00. Be suspicious if you see this
[main] INFO info.hkzlab.dupal.analyzer.App - DuPAL Analyzer 0.1.4 [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - detectIOTypeMask -> Starting IO type detection... This could take a while. [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - detectIOTypeMask -> Currently detected mask is 00 [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - Detected the following IO as Outputs mask: 00 [main] INFO info.hkzlab.dupal.analyzer.board.boardio.DuPALAnalyzer - Now, turn OFF and ON again the DuPAL to reset the PAL and run this tool again by specifying the mask and output file.
Building
MCU
Optiboot
# https://github.com/Optiboot/optiboot # 328P uses 115200? # a few use 57600 but not the one we need :( # wget https://github.com/Optiboot/optiboot/releases/download/v8.0/Optiboot-8.0.zip git clone https://github.com/Optiboot/optiboot.git cd optiboot git checkout -b v8.0 v8.0 cd bootloaders/optiboot make atmega328 AVR_FREQ=20000000L LED_START_FLASHES=8 BAUD_RATE=57600 # sha1sum optiboot_atmega328.hex # 8a16ce8d98d7bf002c54c7aa911bfd124d9e1961 optiboot_atmega328.hex
Flash optiboot. Example CLI to use ISP header, but can also put into tl866 etc
Sample command line:
Originally I tried using BP Microsystems but didn't work (fuses not set right?). I then flashed using avrdude / header and worked (green LED blinking).
TODO: dump end flash so can program using bp
cd DuPAL_Firmware make make program
Analyzer
sudo apt install maven mvn compile sudo mvn install
You should now see something like
$ ls -lah ./target/*.jar -rw-r--r-- 1 root root 51K May 21 14:34 ./target/dupal-analyzer-0.1.4.jar -rw-r--r-- 1 root root 536K May 21 14:35 ./target/dupal-analyzer-0.1.4-jar-with-dependencies.jar $ java -jar ./target/dupal-analyzer-0.1.4-jar-with-dependencies.jar -h [main] INFO info.hkzlab.dupal.analyzer.App - DuPAL Analyzer 0.1.4 [main] ERROR info.hkzlab.dupal.analyzer.App - Wrong number of arguments passed. dupal_analyzer <serial_port> <pal_type> [<output_file> hex_output_mask] Where <pal_type> can be: 10L8 12H6 16L8 20L8 16R4 16R6 16R8 20R4 20R6 20R8
Logic minimization
The recommended flow is to use espresso. Unfortunately this program is a bit old and crusty
java -jar target/espresso-converter-0.0.3-jar-with-dependencies.jar ~/doc/ext/dupal/u33.json out.esp
found this but it crashes under most usage scenarios...I had to work to find something that didn't
git clone https://github.com/JackHack96/logic-synthesis.git