Hi Tara,
the alternate function definition (PWM_x_PIN_x_AF) is meant for defining
which alternate function the referneced pin is using. You can find the
correct values for your configuration in the devices data sheet [1] on
page 43ff, Table 9.
If you for example want to use PWM_0 with timer TIM2 and you want to map
the PWM channel 0 to pin PA3, the value of AF is 1.
Let me know if anything is unclear!
Cheers,
Hauke
[1]
http://www.st.com/web/en/resource/technical/document/datasheet/CD00277537.pdf
On 01.04.2015 02:19, Tararaina Klipffel wrote:
Hi everybody,
I have few questions about the PWM configuration pin on the
periph_config.h [1] on STM32L152RE. The pwm.c file is already done, we
were based on pwm.c stm32f3 discovery file. We also used this two
manuals [2] [3].
What is the link between PWM_0_PIN_CH0 and PWM_0_PIN_AF ? Does
PWM_0_PIN_AF refer to the GPIO_AFRL_AFRLX (X € [0..7] ) or the
GPIO_AFRH_AFRHX (X € [8..15] ) in stm32l1xx.h ?
[1] : http://pastebin.com/bthJXJFP
[2] :
http://www.st.com/web/en/resource/technical/document/reference_manual/CD00240193.pdf
[3] :
http://www.st.com/web/en/resource/technical/document/datasheet/CD00277537.pdf
Kind regards
Tara.
_______________________________________________
devel mailing list
devel@riot-os.org
https://riot-os.org/mailman/listinfo/devel
_______________________________________________
devel mailing list
devel@riot-os.org
https://riot-os.org/mailman/listinfo/devel
