[Bug 1876187] Re: qemu-system-arm freezes when using SystickTimer on netduinoplus2

[Peter Maydell]

Patch sent to list:
20200727162617.26227-1-peter.maydell@linaro.org/">https://patchew.org/QEMU/20200727162617.26227-1-peter.maydell@linaro.org/


** Changed in: qemu
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1876187

Title:
  qemu-system-arm freezes when using SystickTimer on netduinoplus2

Status in QEMU:
  In Progress

Bug description:
  git commit 27c94566379069fb8930bb1433dcffbf7df3203d

  The global variable system_clock_scale used in
  hw/timer/armv7m_systick.c is never set on the netduinoplus2 platform,
  it stays initialized as zero. Using the timer with the clock source as
  cpu clock leads to an infinit loop because systick_timer->tick always
  stays the same.

  To reproduce use to CMSIS function SysTick_Config(uint32_t ticks) to
  setup the timer.

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