Re: [Emc-users] Rpi 3b+ to 7i90hd

2021-01-12 Thread Ralph Stirling
I'm using the 3B+ and a tiny usb flash. It handles unexpected power cycles fine, unlike the sd card. Booting a 4B off usb is more difficult I believe, but my only 4B seems to be dead, so I'm progressing with the 3B+. -- Ralph On Jan 12, 2021 8:49 PM, Thaddeus Waldner wrote: CAUTION: This

Re: [Emc-users] Rpi 3b+ to 7i90hd

2021-01-12 Thread Thaddeus Waldner
I’m wondering what you plan to use for flash memory on the Pi. Is the SD card a viable solution in this application? Would the Pi compute module with onboard flash memory be a workable solution? One issue with onboard flash memory is that swapping out a pi in the case of a processor failure

Re: [Emc-users] Rpi 3b+ to 7i90hd

2021-01-12 Thread Ralph Stirling
Success at last! To summarize everything I've learned: - I was missing one ground (RPi pin 14) - mesaflash doesn't tell me that I have to use --device 7i90, not 7i90hd. I had to look at the mesaflash source to figure that out. - my Fluke 179 dvm diode check does not give me ~0.7v

Re: [Emc-users] two requests

2021-01-12 Thread Gene Heskett
On Monday 11 January 2021 06:22:22 Gene Heskett wrote: I have this at the moment for AXIS_A and JOINT_3 in my .ini file # # Axis A # [AXIS_A] MAX_VELOCITY= 30.000 MAX_ACCELERATION= 500.00 [JOINT_3] TYPE= ANGULAR HOME