Skip to content

K1 2x core boot up instability #4

Description

@gered

Describe the issue

On the Wildbits/K / F256K1 running the 2x core, with a normal SuperBASIC + MicroKernel, etc flash installation, the system intermittently will fail to boot.

To reproduce

If you power cycle the device enough times, you will eventually hit this issue.

On a test just now consisting of 50 power cycles where I followed the below procedure:

  • Power on device
  • Observe behaviour
  • Leave device on regardless of result for 5 seconds.
  • Power off device for 5 seconds.
  • Repeat next attempt

39 of those attempts succeeded and the device booted successfully to SuperBASIC.

11 of those attempts failed and exhibited a black screen, or some mostly black + random bits of discoloured text from the initial SuperBASIC screen visible. In all of these cases the system was non-responsive via the keyboard.

Expected behavior

I would expect the system to always boot successfully to known working software (such as SuperBASIC).

Hardware version

  • SuperBASIC Hardware version string: 01000003 B0
  • Machine type: Wildbits/K / F256K1
  • PCB revision: purple board (received on Feb 12, 2024)
  • CPU: 65816
  • FPGA core: F256Kc_WBh_Jun23th_RC0100_0003_DualSpeed_CPU.jic

Metadata

Metadata

Assignees

No one assigned

    Labels

    Type

    No type
    No fields configured for issues without a type.

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions