Remora - ethernet NVEM / EC300 / EC500 cnc board

Is there a way with the DAP/Stlink to dump my EC300.bin file?

fintech wrote:

Now I see what you mean about the IO pinout headache for these BGA processors. At least with the STM32 you can put your leads on the pin. Do you think this new NXP processors is an upgrade or downgrade?

Definitely a speed improvement at 600MHz clock speed. I've started to re-look at DMA stepgen with the hope of increasing the step rate. With the fast MCU there may be hope to fill the step buffer fast enough.

itsmaxdd wrote:

Is there a way with the DAP/Stlink to dump my EC300.bin file?

Untested, but looks similar to J-link commands. To read (dump) the following may work, but I have already a copy of the original firmware in the repo.

pyocd commander -t mimxrt1050_quadspi -c "savemem 0x60000000 0x400000 ec300.bin"

Might give it a try.

I've got my board programmed using the pyocd method and assuming you arent making changes to the source this is super easy! Board is responding to pings and I also just received a Novusun NVMPG pendant. How goes the pin mapping of the EC500? Ive seen similar projects eg,  github.com/q3k/chubby75/tree/master/5a-75b/pin-scan use a pinscan program that would emit via serial what pin a given chip is connected to, wonder if we could try something similar to get the exact pin mapping of the RT1052 to the outputs

I've been communicating with another guy on facebook, Looks like there is multiple PCB revisions of  EC500 V5. The MCU communications pins are different. The boards have different dates codes. The boards look almost identical. The only difference that I can see is the area near the MCU header. This might explain my steppers work in LinuxCNC but not mach3. My PCB date code is IMXR_EC500 2022-09-07 and his is IMXR_EC500 2022-08-15. We both got them flashed. I  will put together some pictures. My header pins were labeled. His were not. 

Looks like my board revision of the ec500 is 2022-09-07 for what it's worth.

Hey cncwhacko, Did you ever get your board to work in Mach3? We have the same date codes.

nope never used mach3. I'm drawn to the flexibility of linuxcnc

scotta wrote:

itsmaxdd wrote:

Is there a way with the DAP/Stlink to dump my EC300.bin file?
Untested, but looks similar to J-link commands. To read (dump) the following may work, but I have already a copy of the original firmware in the repo.

pyocd commander -t mimxrt1050_quadspi -c "savemem 0x60000000 0x400000 ec300.bin"

Might give it a try.

I gave this a try and it works!

Does anybody have a sample hal file so I can see how inputs and outputs work with the remora. All configuations I see are for parallel ports or mesa cards. I'm a total rookie with LinuxCNC but not to Linux. Been building Linux webservers for the last 20 years.