[gnea/grbl-Mega Issue#118] Problem with firmware and ramps 1.4

#1 – Nandox7 于 2020-03-21

Having the same problem when tried this on RAMPS 1.4 + MEGA.
Loaded the last version .hex file, after I can connect without any problem.
When I send any movement command I can see the reported position changes but there is no movement done in the stepper motors.

Hardware, drivers an steppers are ok because I tested it in a second controller I have running GRBL with a arduino uno shield.

#2 – Nandox7 于 2020-03-21

Aha! found the issue.
While comparing the pin mappin gin cpu_map.h noticed the ifdef statements.

Leaving it here for reference, need to comment & uncoment the ones bellow to use the proper pin mapping for the RAMPS 1.4 inside the config.h file.

// Define CPU pin map and default settings.
// NOTE: OEMs can avoid the need to maintain/update the defaults.h and cpu_map.h files and use only
// one configuration file by placing their specific defaults and pin map at the bottom of this file.
// If doing so, simply comment out these two defines and see instructions below.
//#define DEFAULTS_GENERIC
//#define CPUMAP2560_INITIAL

// To use with RAMPS 1.4 Board, comment out the above defines and uncomment the next two defines
#define DEFAULTSRAMPSBOARD
#define CPUMAP2560RAMPSBOARD

Due to the way we compile grbl this is prone to happen as none of the config is visible.

#3 – RaffaelB 于 2020-03-22

Thanks for the information, I check and try

Il giorno sab 21 mar 2020 alle ore 20:48 Nando
ha scritto:

> Aha! found the issue.
> While comparing the pin mappin gin cpu_map.h noticed the ifdef statements.
>
> Leaving it here for reference, need to comment & uncoment the ones bellow
> to use the proper pin mapping for the RAMPS 1.4 inside the config.h file.
>
> // Define CPU pin map and default settings.
> // NOTE: OEMs can avoid the need to maintain/update the defaults.h and
> cpu_map.h files and use only
> // one configuration file by placing their specific defaults and pin map
> at the bottom of this file.
> // If doing so, simply comment out these two defines and see instructions
> below.
> //#define DEFAULTS_GENERIC
> //#define CPUMAP2560_INITIAL
>
> // To use with RAMPS 1.4 Board, comment out the above defines and
> uncomment the next two defines
> #define DEFAULTSRAMPSBOARD
> #define CPUMAP2560RAMPSBOARD
>
> Due to the way we compile grbl this is prone to happen as none of the
> config is visible.
>
> —
> You are receiving this because you authored the thread.
> Reply to this email directly, view it on GitHub
> <https://github.com/gnea/grbl-Mega/issues/118#issuecomment-602094465>, or
> unsubscribe
> <https://github.com/notifications/unsubscribe-auth/AKRYVRPIIL7424UAX2ZUJP3RIUKZBANCNFSM4LOZW57Q>
> .
>