s32k148 &fs4503 fs0b active too slow

[jaures168]

use fs4503 fs0b the active to high logic ~3 sec.

how to quickly to high logic under 10 ms.

i have setting FS45_R_FS_IO_23_FS_NOT_SAFETY,

FS45_R_FS_VAUX_FS_UV_FS0B

but no useful,

see datasheet p47 that Figure 26. needs wait FS_OUT write OK mat delay 384 ms.

i want to under 10 ms

[guoweisun]

For the FS0B release step below you can set the shorter WD period and try to test the detail time:

1:When a fault is removed and the fault error counter changes back to level ’0’, a right word must be filled in the RELEASE_FSxB register.

2:The value depends on the current WD_LFSR. LSB, MSB must be swapped, and a negative operation per bit must be applied.

3:.The RELEASE_FSxB write command must be done after the WD_LFSR read command within the same WD period.

[jaures168]

can i disable the wd first than reopen wd?

mean short fs0b to high ~0ms