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OLIMEX AgonLight2, User Manual

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eZ80 programming connector

This connector is used for initial programming of eZ80 microcontroller. AgonLight2 comes with pre-
programmed firmware so you do not need to use this connector nor programmer for it.

If you want to develop your own firmware

wrote flash utility

which allows you to flash new

firmware without need of external programmer.

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Summary of Contents for AgonLight2

Page 1: ...AgonLight2 User Manual Rev 1 8 October 2023 olimex com 1...

Page 2: ...power supply and consumption 15 GPIO connector 16 UEXT connector 17 Access bus connector 18 eZ80 programming connector 19 Jumpers 20 SOFTWARE 21 Official AgonLight Firmware 22 Extra info about AgonLi...

Page 3: ...INTRODUCTION 3...

Page 4: ...th additional hardware sensors expansions etc AgonLight and AgonLight2 are Open Source Hardware and officially OSHWA certified All CAD source files are available at AgonLight and AgonLight2 GitHub rep...

Page 5: ...400mAh note that these batteries can be shipped only by ground so we can deliver only to EU destinations USB KEYBOARD PS2 USB keyboard which supports PS2 and can be used for AgonLight2 BREADBOARD 1 Br...

Page 6: ...ard must be PS2 compatible SRAM routed with 40 ohm impedance as per part datasheet Fixed some wrong signal naming on ESP32 PICO D4 GPU co processor Fixed GPIO and programming connector pin ordering Re...

Page 7: ...n 1 SD card contents then copy the contents of the folder 5 Attach a class 10 micro SD card to your PC formatted in FAT32 and with a size of maximum 32GB 6 Paste the contents of the folder 1 SD card c...

Page 8: ...HARDWARE 8...

Page 9: ...ut 9 Micro SD card USB PS2 keyboard Buzzer LiPo battery UEXT GPIO connector ESP32 programming jumper ESP32 UART disable jumper Buzzer enable jumper EZ80 programming Access bus Audio Out VGA USB C powe...

Page 10: ...ad and print at GitHub there is PDF export of the schematic all sources 3D view files gerbers bill of materials and more AgonLight2 dimensions Dimensions can be found in this document https github com...

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Page 15: ...h a keyboard connected If a Li Po battery is connected it will get charged automatically when power supply is attached with up to 100mA When the LiPo battery is attached and external power supply is m...

Page 16: ...ower supply applying more than 5V will damage the board Pin 3 Pin 5 Pin 33 are GND Pin 34 is 3 3V output capable to source up to 2A note that 200mA are used by AgonLight2 Pin 4 is 5V output capable to...

Page 17: ...als UEXT is 0 1 2 54mm step boxed plastic connector All signals are with 3 3V levels Olimex has developed number of MODULES compatible with this connector There are temperature humidity pressure magne...

Page 18: ...Access bus connector This is I2C and power supply with 3 3V levels 18...

Page 19: ...0 microcontroller AgonLight2 comes with pre programmed firmware so you do not need to use this connector nor programmer for it If you want to develop your own firmware Jeroen Venema wrote flash utilit...

Page 20: ...isabled ESP_PROG1 ESP programming enabled when closed ESP32 enters bootloader mode at reset and can be programmed over the USB connector Default state Open ESP programming handled by software UART_D U...

Page 21: ...SOFTWARE 21...

Page 22: ...patible Meaning that you might need to upgrade or downgrade MOS VDP basic in order to run the board If in doubt use the versions we provide It is always recommended to get the latest files and instruc...

Page 23: ...on Quark VDP on the ESP32 chip you have to install IDE package and libraries 1 Arduino IDE 1 1 Go to https www arduino cc en software 1 2 While this will most likely work with 2 x x we recommend you t...

Page 24: ...in menu Tools Port select the one ESP32 has connected 4 6 Go to Main menu Tools PSRAM select Enabled 4 7 Compile and Upload every time after opening the project in Arduino the first compilation is VER...

Page 25: ...hout the need of the programmer and IDE Olimex tested firmware and examples These can be found in the repository here https github com OLIMEX AgonLight2 tree main SOFTWARE Disclaimer Most of the examp...

Page 26: ...MOS commands LOAD SAVE CAT DIR CD MKDIR BYE CPM ERA file ESC ON OFF EXEC file OPT REN oldfile ewfile SAVE file aaaa bbbb SPOOL file TYPE file comment 26...

Page 27: ...DIV DRAW ELSE END ENDPROC ENVELOPE EOF EOR ERL ERR ERROR EVAL EXP EXT FALSE FN FOR GCOL GET GET GET GOSUB GOTO HIMEM IF INKEY INKEY INPUT INSTR INT LEFT LEN LET LINE LIST LN LOAD LOCAL LOG LOMEM MID...

Page 28: ...d the Port C direction register we can PRINT GET 159 and it should return 255 If we want to set GPIO_PC0 as output we should write 0 in bit 0 with the command PUT 159 254 Data registers are 8 bit and...

Page 29: ...Software access to I2C TBD 29...

Page 30: ...Software access to SPI TBD 30...

Page 31: ...Software access to VPU TBD 31...

Page 32: ...e of the document added more info about first steps with the board Revision 1 3 July 2023 general improvements to the structure of the document fixed links added info about firmware and firmware updat...

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