I have had one of these boards for about a year and a half. I got it, tried to find any sort of documentation on it and shelved it. Id there any documentation at all concerning interface and communication, i.e. “in order to communicate I2c, do xyz”? This seemed like someone finally married the two systems and then just walked away from it. The questions I have are:
BPI-uno？ a year and a half? what’s its MCU?
sinvoip, this gives a schematic diagram, but does not say anything on how to program the module. It seems similar to arduberry by dexter industries. I mean, you guys made the thing, you HAD to have someone there set it up, hook it up to a banana pi, program it and say, this works great, now lets sell them. So what was their process in doing so? I can program it using an arduino as the programmer, but that defeats the purpose of having the add-on module. The manual/datasheet you sent tells me how it is wired (sort of, it isnt accurate).
so my questions still stand unanswered:
How do you program it? Is there an example?
How do the two boards communicate? Is there and example?
Where is the documentation?
This comes from the document in the link you sent:
"Typical Application：
Automatic control
Arduino learning
Sensor control
3D printer controller
Laser cutter controller
Robot controller
Smart home"
So, do you have any examples of any of these? Did you program it from the Arduino IDE? If not, how did you program it?
Just a minute amount of documentation and examples open up this product to an audience that is larger by 10 fold. I would personally write up a tutorial or getting started manual, if I could get the information I asked for in the first place.
yelvlab,
it has ATmega328. its basically a little arduino that attaches to the pi across a 26 pin gpio header. (or 40).
To be fair, the schematic may be accurate. It is so small, it is illegible in some places, I have had to make educated guesses and just use my micrometer to figure it out.
I dont feel that I am asking too much.
here’s a post on how to use it ,but it’s chineese
Thank you for the link. It says he gets it to program using /dev/ttyS2 and using the reset button. I dont know if you have evertried to porogram an Arduino that way…ever tried to catch a fly with chopsticks? But anyway, I do not get a /usb/ttyS2 when it is attached. I have an Arduberry as well and it is recognized right away and they are both wired the same in regards to their serial pins.
One thing that I found interesting is that the manual that sinoviop posted has a schematic image that is much larger that the ones on the net and I was able to see that DTR and SCLK are tied together on pin 23. checked with my multimeter and found that this is correct. I modified the avrdude conf file and tried to program it that way, but you cant tie the clock pin and the reset pin together and make this work. Any thoughts?
;
AVRDUDE output with Arduberry:
sudo avrdude -p atmega328p -C ~/avrdude_gpio.conf -c pi_1 -v
avrdude: Version 5.10, compiled on Jun 18 2012 at 12:38:29 Copyright © 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright © 2007-2009 Joerg Wunsch
System wide configuration file is "/home/pi/avrdude_gpio.conf"
User configuration file is "/root/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : unknown
Using Programmer : pi_1
AVR Part : ATMEGA328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 5 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : GPIO
Description : Use the Linux sysfs interface to bitbang GPIO lines
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f avrdude: safemode: lfuse reads as FF avrdude: safemode: hfuse reads as DE avrdude: safemode: efuse reads as 5
avrdude: safemode: lfuse reads as FF avrdude: safemode: hfuse reads as DE avrdude: safemode: efuse reads as 5 avrdude: safemode: Fuses OK
avrdude done. Thank you.
AVRDUDE output with BPi-UNO I have changed the rst pin assignment to GPIO 11 since that is where the circuit takes me. BTW, these are done on an RPi 3.
sudo avrdude -p atmega328p -C ~/avrdude_gpio.conf -c BPi-UNO -v
avrdude: Version 5.10, compiled on Jun 18 2012 at 12:38:29 Copyright © 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright © 2007-2009 Joerg Wunsch
System wide configuration file is "/home/pi/avrdude_gpio.conf"
User configuration file is "/root/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : unknown
Using Programmer : BPi-UNO
AVR Part : ATMEGA328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 5 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : GPIO
Description : Use sysfs interface to bitbang GPIO lines
avrdude: AVR device not responding avrdude: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check.
avrdude done. Thank you.
Hi I was wondering if you got the BPI UNO to work? I connected to my Raspberry Pi 3 and trying to connect is been impossible so far also there is no documentation what so ever from the manufacturer. Thanks
i think i got 1st one…many moons ago. I could never program it from the bpi. I could program it separate as an uno. I tried same wiringpi by dragon like an ardupi?using gpio to program. i tried using add-ons from raspberry pi compatible Arduino / rpi….like i said i could use it as an uno prg offline
i also have a whole box full of bpi/sinovoip/bananapi boards…m1/m2/m3/r1/camera/dpi? i could boot but not do much after that for development. never got a robot like those rpi based to run. no examples…spent too much $$$ on shipping