Remora - ethernet NVEM / EC300 / EC500 cnc board

I was wondering if someone could put their 2c worth on this.

I have received a EC300 board & tried to flash it....Failed.
I get an error (posted below) I have searched the internet & got no further understanding of what the problem is.

I have tried to re-flash my EC500 board which previously worked. Now failing.

I have tried a different stlink module (checked the wiring is correct) Same error.

I cannot get these stlink things to work or they work for five min & pack it in for no reason.
There has to be a better way.

Alex

i sometimes have to press the internal boot button to be able to flash

Looks like you are using an unmodified ST-Link that has not been reflashed as a CMSIS-DAP correct?

Also, I thought pyOCD needed python 3.7 or greater?

hello everyone here, first of all congratulate Scott again for his great work, I've been looking at some cheap boards on aliexpress for a few days, some time ago I had ordered some bluepill cards on aliexpress and to my surprise they arrived with a somewhat unknown chip CH32F103C8T6 (STM32 copy), after some research, not bad, the Chinese company that produces them WCH also produces other chips, one in particular that has caught my attention is the CH32V307, Device Features , especially built-in ethernet and they are 100 pin packaged, going back to aliexpress, we have some boards with this chip (ethernet, 80 pin gpio, 10 timers 4 general purpose can be used to interface encoders, 144 Mhz frequency, ) for 10 euros (version without built-in debugger with debugger 18 euros), I found them very interesting, especially for the cost!!!  I have read before that they are working to port remora to other architectures, I would like to try to port the remora project to these boards, we will see what happens, I leave the links for you to take a look.
Aliexpress Board


 

rbobey1989 wrote:

hello everyone here, first of all congratulate Scott again for his great work, I've been looking at some cheap boards on aliexpress for a few days, some time ago I had ordered some bluepill cards on aliexpress and to my surprise they arrived with a somewhat unknown chip CH32F103C8T6 (STM32 copy), after some research, not bad, the Chinese company that produces them WCH also produces other chips, one in particular that has caught my attention is the CH32V307, Device Features , especially built-in ethernet and they are 100 pin packaged, going back to aliexpress, we have some boards with this chip (ethernet, 80 pin gpio, 10 timers 4 general purpose can be used to interface encoders, 144 Mhz frequency, ) for 10 euros (version without built-in debugger with debugger 18 euros), I found them very interesting, especially for the cost!!! I have read before that they are working to port remora to other architectures, I would like to try to port the remora project to these boards, we will see what happens, I leave the links for you to take a look.
Aliexpress Board


 

Yes, a really interesting chip with integrated PHY, SDK and very good prices. I just ordered one of these kits (thanks to everyone who contribute to the GoFundMe).

www.aliexpress.com/item/1005005021450761...eLogUid=uaetAnuca0fD

The examples look to have everything we need to port Remora to these boards including In Application Programming (IAP) over Ethernet. First RISC-V board to play with.

I found several EC500 drivers on Aliexpress, from 3 to 6 axes, at various prices ...
Are there any differences in the hardware, or are they just uploading another firmware to demand less or more money?

The second question is, will this controller with Remora firmware serve the lathe encoder?