jlaitine commented on code in PR #15929:
URL: https://github.com/apache/nuttx/pull/15929#discussion_r1979073343
##########
arch/risc-v/src/common/riscv_mtimer.c:
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@@ -349,11 +345,11 @@ riscv_mtimer_initialize(uintreg_t mtime, uintreg_t
mtimecmp,
priv = kmm_zalloc(sizeof(*priv));
if (priv != NULL)
{
- priv->lower.ops = &g_riscv_mtimer_ops;
- priv->mtime = mtime;
- priv->mtimecmp = mtimecmp;
- priv->freq = freq;
- priv->alarm = UINT64_MAX;
+ priv->lower.ops = &g_riscv_mtimer_ops;
+ priv->mtime = mtime;
+ priv->mtimecmp = mtimecmp;
+ priv->cycle_per_tick = freq / TICK_PER_SEC;
Review Comment:
> may not divide evenly, so it's better to save freq like patch:
[eac9937](https://github.com/apache/nuttx/commit/eac99370e58137bc444fe68a86ed5088c935a74d)
That is a good point, thanks, I will rework this. Although it would only
increase accuracy if one would set it to trigger after longer than 1 tick, and
since this is the tick timer, it is not used as such. So in practice there will
be no difference at the moment.... :)
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