[gnea/grbl-Mega Issue#17] grbl port on xmega avr About GRBL HAL

Issue #17 | 状态: 已关闭 | 作者: shamsiqbal | 创建时间: 2017-02-01

hi
i have been working on grbl port on xmega controller i have seen an older port of grbl to xmega avr but thats V0.8 grbl port
i have added many new features as i have more processing power in xmega avr
at this moment i have few question
how to configure xmega uart for communication , how does serial communication works in grbl current release i am working on v1.0 version here i want to know that does serial communication use any “print” c library function or it uses only interrupt driven communication
if it uses only interrupt driven communication then it will be easier to configure xmega interrupts and i am good to go with it
second question is ADAPTIVEMULTIAXISSTEPSMOOTHING how does this works in real time and how to adopt this feature in xmega avr timer
waiting for quick guide

#1 – chamnit 于 2017-02-01

@shamsiqbal : The source code is very well commented. Please start by reading and understanding it. Second, Grbl is being ported to 32-bit ARM.

#2 – shamsiqbal 于 2017-02-01

@chamnit : i was expecting to get answer that it uses “print ,printf ,prints” c library routine or not in any part of grbl code i have already added new parameters in mega2560 v1.0 for closed loop servo motor control added pid closed loop control function now i am just one step ahead from testing it on my cnc milling machine about ADAPTIVEMULTIAXISSTEPSMOOTHING this part was not implemented in older port of xmega avr so i asked it i read the whole code indeed its well commented that’s why i was able to add above stated function in it i hope you will guide me little about it
i after initial testing i will go to add missing G33 (tapping / threading ) function in it

i knew that its being ported 32-bit ARM since V0.8 but for ARM port i will go for tinyg/g2 with closed loop servo control
this moment i am interested to prove that grbl can control close loop servo motor controls and will be the first open source software for G33 g-code support as this port will be proven stable i will be going to launch it on github repository

原始Issue: https://github.com/gnea/grbl-Mega/issues/17

[gnea/grbl-Mega Issue#17] grbl port on xmega avr

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