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nrf52_bsim: Add command line option to control re-sync offset

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Some users use this simulated board interactively
(even though it is not recomended).
In that case, they may want to perceive a relatively smooth
time flow.
By default the maximum resynchronization offset is set at
1 second.
When running with a simulation speed close to real time,
this results in the simulated board jerking and pausing in
time 1 second at a time when there is no radio activity.
With this new option, users can set a resynchronization
offset of, for ex., 10 ms, which would give the illusion
of time progressing smoothly.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
This commit is contained in:
Alberto Escolar Piedras 2023-05-10 15:21:15 +02:00 committed by Carles Cufí
parent f18c0b5ba5
commit 404ffa06bb
2 changed files with 14 additions and 0 deletions
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13
boards/posix/nrf52_bsim/argparse.c
View file

@ -17,6 +17,7 @@
#include "bs_dynargs.h"
#include "bs_cmd_line_typical.h"
#include "NRF_HWLowL.h"
#include "time_machine.h"
static bs_args_struct_t *args_struct;
char executable_name[] = "bs_nrf52_bsim_..";
@ -73,6 +74,11 @@ static void cmd_no_sync_preboot_found(char *argv, int offset)
arg.sync_preboot = false;
}
static void cmd_max_resync_offset_found(char *argv, int offset)
{
tm_set_phy_max_resync_offset(arg.max_resync_offset);
}
static void save_test_arg(struct NRF_bsim_args_t *args, char *argv)
{
if (args->test_case_argc >= MAXPARAMS_TESTCASES) {
@ -158,6 +164,13 @@ void nrfbsim_register_args(void)
"no_delay_init", "", 'b',
NULL, cmd_no_delay_init_found,
"Clear delay_init. Note that by default delay_init is not set"},
{ false, false, false,
"mro", "max_resync_offset", 'd',
(void *)&arg.max_resync_offset, cmd_max_resync_offset_found,
"Set the max Phy synchronization offset, that is, how far the device time can be "
"from the Phy time before it resynchronizes with the Phy again "
"(by default 1e6, 1s). Note that this value may be changed programmatically by "
"tests"},
BS_DUMP_FILES_ARGS,
{false, false, false,
"testid", "testid", 's',

1
boards/posix/nrf52_bsim/argparse.h
View file

@ -24,6 +24,7 @@ struct NRF_bsim_args_t {
bool delay_init;
bool sync_preinit;
bool sync_preboot;
double max_resync_offset;
nrf_hw_sub_args_t nrf_hw;
};