FM8PC71AM datasheet(49/73 Pages) FEELING

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FM8PC71AM

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.

No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

P.49

R1.1.004, Aug 7, 2017

FM8PC71AM

遠翔科技

Feeling Technology

6.4 PWM Code Example

// pwm clock source F0ck = Fcpu(4MHz)

BCR

PWM0CON,P0CKS2_B

BCR

PWM0CON,P0CKS1_B

BCR

PWM0CON,P0CKS0_B

// pwm clock source F0ck/32 Hz

BSR

PWM0CR,P0TPS2_B

// F0ck = 4/32 Mhz = 125 Khz ;

BCR

PWM0CR,P0TPS1_B

BSR

PWM0CR,P0TPS0_B

(A) 4~8-bits PWM

// pwm duty range 6bits( Rang 0~63)

BCR

PWM0CON,P0DT2_B

BSR

PWM0CON,P0DT1_B

BCR

PWM0CON,P0DT0_B

MOVIA

00fh

// Load initial value 7~0 bits

MOVAR P0RDLB

// Duty Cycle = 15 (1/F0ck) clock s

// enable pwm

BSR

PWM0CR,P0TMIE_B

BSR

PWM0CR, PWM0EN_B

; First Set PWM0EN_B

BSR

PWM0CR, P0TMEN_B

(B) 9~12-bits PWM

// pwm duty range 12bits( Rang 0~4095)

BSR

PWM0CON,P0DT2_B

BSR

PWM0CON,P0DT1_B

BSR

PWM0CON,P0DT0_B

MOVIA

00fh

// Load initial value Low byte 7~0 bits

MOVAR P0RDLB

MOVIA

00h

// Load initial value High byte 11~8 bits

MOVAR P0RDHB

// Duty Cycle = 15 (1/F0ck) clock s

// enable pwm

BSR

PWM0CR,P0TMIE_B

BSR

PWM0CR, PWM0EN_B

; First Set PWM0EN_B

BSR

PWM0CR, P0TMEN_B

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