fern/sensor-watch
1
0
Fork 0
mirror of https://github.com/firewalkwithm3/Sensor-Watch.git synced 2024-11-22 19:20:30 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

annotate SLEEPCFG-register detail

Browse source
This commit is contained in:
Alex Maestas 2024-01-22 00:37:25 +00:00
parent af49d3cfcb
commit a2a60eb31a
1 changed files with 7 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
watch-library/hardware/hal/src/hal_sleep.c
View file

@ -57,7 +57,13 @@ int sleep(const uint8_t mode)
if (ERR_NONE != _set_sleep_mode(mode)) if (ERR_NONE != _set_sleep_mode(mode))
return ERR_INVALID_ARG; return ERR_INVALID_ARG;
// wait for the mode set to actually take, per chip doc. // wait for the mode set to actually take, per note in Microchip data
// sheet DS60001465, section 19.8.2:
//
// A small latency happens between the store instruction and actual
// writing of the SLEEPCFG register due to bridges. Software has to make
// sure the SLEEPCFG register reads the wanted value before issuing WFI
// instruction.
while(_get_sleep_mode() != mode); while(_get_sleep_mode() != mode);
_go_to_sleep(); _go_to_sleep();