Difference: BoardSupportPackageFlipper (4 vs. 5)

Revision 52023-11-12 - PeterSchmid

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META TOPICPARENT	name="MecrispCubeFlipper"

%DASHBOARD{ section="banner"

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Using the PWM (Analog Output Pins)

Changed:

<
< Only three port pins are supported so far. The 16 bit TIMER1 is used for the timebase, time resolution is 1 us (32 MHz SysClk divided by 32). The PWM scale is from 0 (0 % duty cycle) to 1000 (100 % duty cycle), this results in a PWM frequency of 1 kHz. If you need higher PWM frequencies, decrease the divider and/or the scale.

>
> Only two port pins are supported so far. The 16 bit TIMER1 is used for the timebase, time resolution is 1 us (32 MHz SysClk divided by 32). The PWM scale is from 0 (0 % duty cycle) to 1000 (100 % duty cycle), this results in a PWM frequency of 1 kHz. If you need higher PWM frequencies, decrease the divider and/or the scale.

Changed:

<
< PWM port pins: D6 (TIM1CH1), D9 (TIM1CH2), D3 (TIM1CH3)

>
> PWM port pins: D11 (TIM1CH1), D4 (TIM1CH2)

Simple test program to set brightness of a LED on pin D3 with a potentiometer on A0. Default PWM frequency is 1 kHz (prescaler set to 32). You can set the prescale with the word pwmprescale from 32 kHz (value 1) down to 0.5 Hz (64000).

Line: 254 to 254

Output Compare

Changed:

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<

>
> Only one port pin (D9) is supported so far.

: oc-toggle ( -- )
  5000000 ICOCperiod! \ 5 s period
  ICOCstart

Changed:

<
< 3 0 OCmod 1000000 0 OCstart \ toggle D0 after 1 s 3 1 OCmod 2000000 1 OCstart \ toggle D1 after 2 s 3 5 OCmod 3000000 5 OCstart \ toggle D5 after 3 s

>
> 3 9 OCmod 1000000 0 OCstart \ toggle D9 after 1 s

begin waitperiod cr .time

Line: 347 to 345

Pin	Label	STM32WB55 pin	Arduino	Alternate Functions
1	+5V

Changed:

<
<

PA7

D11

SPI1_MOSI, TIM1_CH2 (PWM)

>
>

PA7

D11

SPI1_MOSI, TIM1_CH1 (PWM)

3	A6	PA6	D12	SPI1_MISO
4	A4	PA4	D10	SPI1_CS
5	B3	PB3	D13	SPI1_CLK, SWO

Line: 386 to 384

Added:

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>

Push Buttons

Changed:

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<

Signal name	STM32WB55 pin	Comment
BUTTON_BACK	PC13	RESET, WKUP2
BUTTON_OK	PH3	BOOTP
BUTTON_RIGHT	PB12
BUTTON_LEFT	PB11	RESET
BUTTON_UP	PB10
BUTTON_DOWN	PC6

>
>

Signal name	STM32WB55 pin	Comment	Numbering
BUTTON_BACK	PC13	RESET, WKUP2	1
BUTTON_OK	PH3	BOOTP	2
BUTTON_RIGHT	PB12		3
BUTTON_LEFT	PB11	RESET	4
BUTTON_UP	PB10		5
BUTTON_DOWN	PC6		6

RGB LED

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