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made panelized PCB board
04/18/2017 at 16:36 • 0 commentsTo save cost, i have put 4 boards into 127mm x 73mm area but its not very cost effective yet.
I plan to adjust 4 boards into 100x100mm area later.
Gerber files are at https://github.com/amitesh-singh/FASTUSBasp/tree/master/kicad2/pan-gerber
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kicad design completed
04/18/2017 at 15:03 • 0 commentsfinally i am able to complete the kicad design of FASTUSBasp adapter board.
The latest kicad files and gerber files can always find at.
https://github.com/amitesh-singh/FASTUSBasp/tree/master/kicad2
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firmware coding has been completed.
04/15/2017 at 10:29 • 1 commentWell, i am done with writing firmware coding. The results are quite good.
The latest code can be always find out here.
https://github.com/amitesh-singh/FASTUSBasp
Next target is to develop an adapter board so that you just plug and place blue-pill board on it and start flashing AVRs.
$ sudo avrdude -c usbasp-clone -p m16 -U flash:w:ST7735.hex [sudo] password for ami: avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.00s avrdude: Device signature = 0x1e9403 (probably m16) 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 "ST7735.hex" avrdude: input file ST7735.hex auto detected as Intel Hex avrdude: writing flash (4200 bytes): Writing | ################################################## | 100% 0.28s avrdude: 4200 bytes of flash written avrdude: verifying flash memory against ST7735.hex: avrdude: load data flash data from input file ST7735.hex: avrdude: input file ST7735.hex auto detected as Intel Hex avrdude: input file ST7735.hex contains 4200 bytes avrdude: reading on-chip flash data: Reading | ################################################## | 100% 0.08s avrdude: verifying ... avrdude: 4200 bytes of flash verified avrdude: safemode: Fuses OK (E:FF, H:D8, L:CF) avrdude done. Thank you.
Write speed:>>> 4200/0.28 = 15KBps
Read Speed:
>>> 4200/0.08 = 52.5 KBps
This is quite nice!