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tests/drivers: pwm_api: Document how to tune test for stm32 targets #31612

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Jan 26, 2021
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tests/drivers: pwm_api: Document how to tune test for stm32 targets #31612

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9 changes: 9 additions & 0 deletions tests/drivers/pwm/pwm_api/src/test_pwm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,15 @@
#elif defined CONFIG_BOARD_ADAFRUIT_ITSYBITSY_M4_EXPRESS
#define DEFAULT_PWM_PORT 2 /* TCC1/WO[2] on PA18 (D7) */
#elif DT_HAS_COMPAT_STATUS_OKAY(st_stm32_pwm)
/* Default port should be adapted per board to fit the channel
* associated to the PWM pin. For intsance, for following device,
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typo: intsance

* pwm1: pwm {
* status = "okay";
* pinctrl-0 = <&tim1_ch3_pe13>;
* };
* the following should be used:
* #define DEFAULT_PWM_PORT 3
*/
#define DEFAULT_PWM_PORT 1
#else
#define DEFAULT_PWM_PORT 0
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