ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #15051 from hallard/STM32_LPTIM_Prescaler 

Allow to use all STM32 targets prescaler for LPTIM
pull/15065/head
Martin Kojtal 2021-09-10 09:52:04 +01:00 committed by GitHub
parent 82036c85df 81876a0f88
commit 5a3f3f7330
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 14 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
targets/TARGET_STM/lp_ticker.c
View File

@ -242,7 +242,17 @@ void lp_ticker_init(void)
LptimHandle.State = HAL_LPTIM_STATE_RESET;
LptimHandle.Init.Clock.Source = LPTIM_CLOCKSOURCE_APBCLOCK_LPOSC;
#if defined(MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK)
#if (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 4)
#if (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 128)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV128;
#elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 64)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV64;
#elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 32)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV32;
#elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 16)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV16;
#elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 8)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV8;
#elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 4)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV4;
#elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 2)
LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV2;

5
targets/targets.json
View File

@ -1256,8 +1256,9 @@
"macro_name": "LPTICKER_DELAY_TICKS"
},
"lpticker_lptim_clock": {
"help": "Default value for LPTIM clock (lpticker_lptim == 1). Value is the dividing factor. Choose 1, 2 or 4",
"value": 1
"help": "Default value for LPTIM clock (lpticker_lptim == 1). Value is the dividing factor. Choose 1, 2, 4, 8, 16, 32, 64 or 128",
"value": 1,
"constraint": "Disclaimers : values from 8 to 128 have impacts on mbed-os timer precision and therefore on scheduling. It's not supported by mbed-os. Use it if you know what you're doing such as long low power sleep."
},
"gpio_reset_at_init": {
"help": "if value set, all GPIO are reset during init",