PWM (Pulse Width Modulation) 功能使用方法

PWM 功能使用方法
PWM (Pulse Width Modulation) 功能使用方法
1
適用產品：
1.1 SM59R16A2/ SM59R08A2
1.2 SM59R16A5/ SM59R09A5/ SM59R05A5/ SM59R16A3/ SM59R09A3/ SM59R05A3
1.3 SM59R16G6/ SM59R09G6/ SM59R05G6
1.4 SM59R04A2/ SM59R04A1/ SM59R03A1/ SM59R02A1
1.5 文件說明：SM59R 系列注意 PWM 因架構差異，各型號說明請參考以下相對章節。
2
SM59R16A5/ SM59R09A5/ SM59R05A5/ SM59R16A3/ SM59R09A3/ SM59R05A3/ SM59R16G6/
SM59R09G6/ SM59R05G6/ SM59R04A2/ SM59R04A1/ SM59R03A1/ SM59R02A1 PWM 使用說明:
(SM59R16A2/ SM59R08A2 請參考章節 3 說明)
2.1 提供 4 組獨立的 PWM 信號
2.2 輸入時脈可由暫存器 PWMCS[2:0]選擇
2.3 PWM 為 10-bit 模式，但最大資料計數可由 PWMMDH 及 PWMMDL 設定為 1~1024．
2.4 PWM 相關的特殊暫存器 PWM Special Function Register (SFR)
Mnemonic
PWMC
PWMD0H
PWMD0L
PWMD1H
PWMD1L
PWMD2H
Description
PWM Control
register
PWM 0 Data
register high byte
PWM 0 Data
register low byte
PWM 1 Data
register high byte
PWM 1 Data
register low byte
PWM 2 Data
register high byte
Direct
B5h
BCh
Bit 7
Bit 6
Bit 5
PWM
PWMCS[2:0]
PWMP0
-
-
BDh
BEh
-
Bit 3
Bit 2
Bit 1
Bit 0
PWM3EN PWM2EN PWM1EN PWM0EN
-
-
PWMD0[9:8]
PWMD0[7:0]
PWMP1
-
-
BFh
B1h
Bit 4
-
-
-
-
-
-
00H
00H
00H
-
PWMD1[9:8]
PWMD1[7:0]
PWMP2
RESET
00H
00H
-
PWMD2[9:8]
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
1
Ver B 2011/01
00H
PWM 功能使用方法
PWMD2L
PWMD3H
PWMD3L
PWMMDH
PWMMDL
PWM 2 Data
register low byte
PWM 3 Data
register high byte
PWM 3 Data
register low byte
PWM Max Data
register high byte
PWM Max Data
register low byte
B2h
B3h
PWMD2[7:0]
PWMP3
-
-
B4h
CEh
-
-
00H
-
PWMD3[9:8]
00H
PWMD3[7:0]
-
-
-
CFh
-
-
00H
-
PWMMD[9:8]
00H
PWMMD[7:0]
FFH
2.5 SM59R16A5/SM59R09A5/SM59R05A5/SM59R16A3/SM59R09A3/SM59R05A3 之 PWM 輸出
可選擇由 P2[4:7]或 P4[0:7]，預設值為 P4[0:7]，其設定之特殊暫存器為 AUX(0x91h)
Mnemonic: AUX
Address: 91h
7
BRS
6
-
5
P4SPI
4
P4UR1
3
P4IIC
2
P0KBI
1
P2PWM
0
DPS
Reset
00H
P2PWM : P2PWM = 0 – PWM function on P4.
P2PWM = 1 – PWM function on P2.
2.6 SM59R16G6/ SM59R09G6/ SM59R05G6 之 PWM 輸出可選擇由 P2[4:7]或 P4[0:7]，預設值為
P4[0:7]，其設定之特殊暫存器為 AUX(0x91h)
Mnemonic: AUX
Address: 91H
7
BRGS
6
-
5
P4SPI
4
P1UR
3
P4IIC
2
-
1
P2PWM
0
DPS
Reset
00H
P2PWM : P2PWM = 0 – PWM function on P4.
P2PWM = 1 – PWM function on P2.
Mnemonic: PWMC
7
6
PWMCS[2:0]
PWMCS[2:0]:
Address: B5h
5
4
-
3
PWM3EN
2
PWM2EN
1
PWM1EN
0
PWM0EN
Reset
00H
時脈選擇位元(PWM clock select)
PWMCS [2:0]
Mode
000
Fosc
001
Fosc/2
010
Fosc/4
011
Fosc/6
100
Fosc/8
101
Fosc/12
110
Timer 0 overflow
111
Timer 0 external input (P3.4/T0)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
2
Ver B 2011/01
PWM 功能使用方法
通道 3 致能位元(PWM channel 3 enable control bit)
PWM3EN = 1 – PWM channel 3 致能.
PWM3EN = 0 – PWM channel 3 禁能.
通道 2 致能位元(PWM channel 2 enable control bit)
PWM2EN = 1 – PWM channel 2 致能.
PWM2EN = 0 – PWM channel 2 禁能.
通道 1 致能位元(PWM channel 1 enable control bit)
PWM1EN = 1 – PWM channel 1 致能.
PWM1EN = 0 – PWM channel 1 禁能.
通道 0 致能位元(PWM channel 0 enable control bit)
PWM0EN = 1 – PWM channel 0 致能.
PWM0EN = 0 – PWM channel 0 禁能.
PWM3EN:
PWM2EN:
PWM1EN:
PWM0EN:
Mnemonic: PWMD0H
7
PWMP0
Address: BCh
6
-
5
-
4
-
3
-
2
-
1
0
PWMD0[9:8]
Mnemonic: PWMD0L
7
6
Reset
00H
Address: BDh
5
4
3
PWMD0[7:0]
2
1
0
Reset
00h
PWMP0: 通道 0 閒置準位選擇位元(PWM channel 0 idle polarity select)
“0” –通道 0 閒置時為低準位(PWM channel 0 will idle low)
“1” –通道 0 閒置時為高準位(PWM channel 0 will idle high)
PWMD0[9:0]: 通道 0 資料暫存器(PWM channel 0 data register)
可調整 PWM 通道 0 Duty Cycle
Mnemonic: PWMD1H
7
PWMP1
Address: BEh
6
-
5
-
4
-
3
-
2
-
1
0
PWMD1[9:8]
Mnemonic: PWMD1L
7
6
Reset
00H
Address: BFh
5
4
3
PWMD1[7:0]
2
1
0
Reset
00H
PWMP1: 通道 1 閒置準位選擇位元(PWM channel 1 idle polarity select)
“0” –通道 1 閒置時為低準位(PWM channel 1 will idle low)
“1” –通道 1 閒置時為高準位(PWM channel 1 will idle high)
PWMD1[9:0]: 通道 1 資料暫存器(PWM channel 1 data register)
可調整 PWM 通道 1 Duty Cycle
Mnemonic: PWMD2H
7
PWMP2
6
-
Address: B1h
5
-
4
-
3
-
2
-
1
0
PWMD2[9:8]
Reset
00H
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
3
Ver B 2011/01
PWM 功能使用方法
Mnemonic: PWMD2L
7
6
Address: B2h
5
4
3
PWMD2[7:0]
2
1
0
Reset
00H
PWMP2: 通道2閒置準位選擇位元(PWM channel 2 idle polarity select)
“0” –通道 2 閒置時為低準位(PWM channel 2 will idle low)
“1” –通道 2 閒置時為高準位(PWM channel 2 will idle high)
PWMD2[9:0]: 通道 2 資料暫存器(PWM channel 2 data register)
可調整 PWM 通道 2 Duty Cycle
Mnemonic: PWMD3H
7
PWMP3
Address: B3h
6
-
5
-
4
-
3
-
2
-
1
0
PWMD3[9:8]
Mnemonic: PWMD3L
7
6
5
Reset
00H
Address: B4h
4
3
PWMD3[7:0]
2
1
0
Reset
00H
PWMP3: 通道 3 閒置準位選擇位元(PWM channel 3 idle polarity select)
“0” –通道 3 閒置時為低準位(PWM channel 3 will idle low)
“1” –通道 3 閒置時為高準位(PWM channel 3 will idle high)
PWMD3[9:0]: 通道 3 資料暫存器(PWM channel 3 data register)
可調整 PWM 通道 3 Duty Cycle
Mnemonic: PWMMDH
7
-
6
-
5
-
Address: CEh
4
-
3
-
2
-
1
0
PWMMD[9:8]
Mnemonic: PWMMDL
7
6
5
Reset
00H
Address: CFh
4
3
PWMMD[7:0]
2
1
0
Reset
FFH
PWMMD[9:0]: 最大資料設定暫存器(PWM Max Data register)
PWM 由 0000 計數至 PWMMD[9:0]，當計數等於 PWMMD[9:0]時會產生溢位。
PWMPx = 0
Duty = PWMDx[9:0]
Period = PWMMD[9:0]
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
4
Ver B 2011/01
PWM 功能使用方法
Duty
Duty
Duty
Duty
Duty
Duty
PWM period
PWM period =
PWMMD + 1
PWM clock
PWM period
Leader pulse =
PWMDx
PWM clock
2.7 PWM 中斷
2.7.1 向量表(Interrupt vectors table)
Interrupt Request Flags
Interrupt Vector Address
Interrupt Number *(use
Keil C Tool)
IE0 – External interrupt 0
0003h
0
TF0 – Timer 0 interrupt
000Bh
1
IE1 – External interrupt 1
0013h
2
TF1 – Timer 1 interrupt
001Bh
3
RI0/TI0 – Serial channel 0 interrupt
0023h
4
TF2/EXF2 – Timer 2 interrupt
002Bh
5
PWMIF – PWM interrupt
0043h
8
SPIIF – SPI interrupt
004Bh
9
ADCIF – A/D converter interrupt
0053h
10
KBIIF – keyboard Interface interrupt
005Bh
11
LVIIF – Low Voltage Interrupt
0063h
12
IICIF – IIC interrupt
006Bh
13
RI1/TI1 – Serial channel 1 interrupt
0083h
16
*See Keil C about C51 User’s Guide about Interrupt Function description
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
5
Ver B 2011/01
PWM 功能使用方法
2.7.2 中斷相關暫存器(Interrupt SFR)
Mnemonic
IEN0
IEN1
IEN2
IRCON
IP0
IP1
Description
Interrupt Enable
0 register
Interrupt Enable
1 register
Interrupt Enable
2 register
Interrupt request
register
Interrupt priority
level 0
Interrupt priority
level 1
Direct
Bit 7
Bit 6
A8h
EA
-
B8h
EXEN2
9Ah
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESET
ET2
ES0
ET1
EX1
ET0
EX0
00h
-
IEIIC
IELVI
IEKBI
IEADC
IESPI
IEPWM
00h
-
-
-
-
-
-
-
ES1
00h
C0H
EXF2
TF2
IICIF
LVIIF
KBIIF
ADCIF
SPIIF
PWMIF
00H
A9h
-
-
IP0.5
IP0.4
IP0.3
IP0.2
IP0.1
IP0.0
00h
B9h
-
-
IP1.5
IP1.4
IP1.3
IP1.2
IP1.1
IP1.0
00h
PWM 中斷可參考以下設定：
(1) PWM 中斷致能設定：
IEN0 |= 0x80;
IEN1 |= 0x01;
Bit 5
Interrupt
//Enable interrupt All
//Enable interrupt PWM
(2) PWM 中斷程序表示：
void IIC_interrupt(void) interrupt 8{
if(IRCON |= 0x01)
{
IRCON &= (~0x01);
//Clear interrupt flag
}
}
2.8 PWM 範例程式
2.8.1 PWM Assembly程式範例
Description
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
6
Ver B 2011/01
PWM 功能使用方法
Main program
//====================================================================
=====
//
//
S Y N C M O S T E C H N O L O G Y
//
//====================================================================
=====
#include "SM59R04A2.h"
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
select
#define
select
#define
select
#define
select
#define
d_Fosc
0x00
d_Fosc_div2
0x20
d_Fosc_div4
0x40
d_Fosc_div6
0x60
d_Fosc_div8
0x80
d_Fosc_div12
0xA0
d_T0_overflow
0xC0
d_T0_EX
0xE0
d_PWMCS
d_Fosc_div12
d_PWMXEN
0x0F
d_IDLE_HI
0x80
d_IDLE_LO
0x00
d_PWMP0
d_IDLE_HI
//PWMCS[2:0] (PWM clock select 0~7)
//PWM0~3 Channel Enable (0~F)
//PWM0 Channel idle polarity
d_PWMP1
d_IDLE_HI
//PWM1 Channel idle polarity
d_PWMP2
d_IDLE_HI
//PWM2 Channel idle polarity
d_PWMP3
d_IDLE_LO
//PWM3 Channel idle polarity
d_PWMIE
0x00
//PWM Interrupt Enable bit
//P2PWM only for SM59R16A5/ SM59R09A5/ SM59R05A5/ SM59R16A3/ SM59R09A3/
SM59R05A
#define d_P2PWM
0x02
//PWM channel on P2/P4 select
org
0000h
//Start
call
PWM_initialize
Start:
jmp
Start
PWM_initialize:
mov
PWMMDH, #000
mov
PWMMDL, #100
mov
PWMD0H, #d_PWMP0
orl
PWMD0H, #0
mov
PWMD0L, #10
mov
PWMD1H, #d_PWMP1
orl
PWMD1H, #0
mov
PWMD1L, #20
mov
PWMD2H, #d_PWMP2
orl
PWMD2H, #0
mov
PWMD2L, #50
mov
PWMD3H, #d_PWMP3
orl
PWMD3H, #0
mov
PWMD3L, #50
// orl
AUX,
#d_P2PWM
mov
PWMC,
#d_PWMCS
orl
PWMC,
#d_PWMXEN
ret
PWM_Disable:
//mov
IEPWM, #0
mov
PWMC,
#0
ret
end
//set pwm max period
//set idle polarity
//set pwm0 period
//set idle polarity
//set pwm1 period
//set idle polarity
//set pwm2 period
//set idle polarity
//set pwm3 period
//Set PWM channel on P2/P4
//PWM CLK select
//PWM channel enable
//Disable PWM Interrupt
//Disable PWM Function
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
7
Ver B 2011/01
PWM 功能使用方法
2.8.2 PWM C語言程式範例，各通道產生的時序圖，Fosc=25MHz：
2.8.3 PWM C語言程式範例
Description
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
8
Ver B 2011/01
PWM 功能使用方法
Main program
//===================================================================
//
//
S Y N C M O S T E C H N O L O G Y
//
//===================================================================
// Device:SM59R04A2/SM59R03A2/SM59R02A2
//===================================================================
#include "SM59R04A2.h"
void PWM_init(void)
{
PWMD0H =0x00;
PWMD0L =0x10;
PWMD1H =0x00;
PWMD1L =0x20;
PWMD2H =0x00;
PWMD2L =0x40;
PWMD3H =0x80;
PWMD3L =0x40;
//
//
PWMMDH
PWMMDL
PWMMDH
PWMMDL
=0x03;
=0xFF;
=0x00;
=0x7F;
IE
|=0x80;
IEN1 |=0x01;
PWMC |=0x0F;
//idle =low
//clock=16
//idle =low
//clock=32
//idle =low
//clock=64
//idle =high
//clock=64
//PWM period =PWMMD +1 =1024
//PWM period =PWMMD +1 =128
//Enable interrupt All
//Enable interrupt PWM
//PWM clock source=Fosc, enable all channel
}
void PWM_Int_disable(void)
{
IEN1 &=(~0x01);
}
//Disable interrupt PWM
void PWM_interrupt(void) interrupt 8
{
if(IRCON |=0x01)
{
IRCON &=(~0x01);
//Clear interrupt flag
}
}
void main(void)
{
PWM_init();
while(1)
{}
}
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
9
Ver B 2011/01
PWM 功能使用方法
3
SM59R16A2/ SM59R08A2 PWM 使用說明：
3.1 提供 4 組獨立的 PWM 信號
3.2 有三組預除器；輸出頻率 FPWM = FOSC／Div
3.3 三種資料模式：8, 10, 12 bit mode
3.4 4 組 PWM 信號可同時動作(條件為參考頻率 FPWM 相同，如下圖所示)
3.5 Pin Description
SM59R16A2 / SM59R08A2 Package: TQFP & LQFP
Pin
Name
I/O
Description
9
P4.0/PWM2
i/o
Bit 0 of port 4 & PWM Channel 2
10
P4.1/PWM3
i/o
Bit 1 of port 4 & PWM Channel 3
22
P1.5/PWM1/CC1
i/o
Bit 5 of port 1 & Timer 2 compare/capture Channel 1 & PWM Channel 1
23
P1.4/PWM0/CC0
i/o
Bit 4 of port 1 & Timer 2 compare/capture Channel 0 & PWM Channel 0
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
10
Ver B 2011/01
PWM 功能使用方法
3.6 SFR 特殊控制暫存器及特殊狀態暫存器介紹：
3.6.1 Special Function Register (SFR)
A map of the Special Function Registers is show as below:
Hex\Bin
X000
X001
X010
X011
X100
F8
IICS
IICCTL
IICA1
IICA2
IICRWD
F0
B
SPIC1
SPIC2
SPITXD
SPIRXD
SPIS
E8
P4
MD0
MD1
MD2
MD3
MD4
E0
ACC
E7
D8
BRGS
DF
D0
PSW
D7
C8
T2CON
C0
IRCON
CCEN
CCL1
CCH1
CCL2
CCH2
CCL3
CCH3
C7
B8
IEN1
IP1
S0RELH
S1RELH
PWMD0H
PWMD0L
PWMD1H
PWMD1L
BF
B0
P3
PWMD2H
PWMD2L
PWMD3H
PWMD3L
PWMC
WDTC
WDTK
B7
A8
IEN0
IP0
S0RELL
ADCC1
ADCC2
ADCDH
ADCDL
CLKR
AF
A0
P2
98
S0CON
S0BUF
IEN2
S1CON
S1BUF
S1RELL
9F
90
P1
P5
DPS
KBLS
KBE
KBF
97
88
TCON
TMOD
TL0
TL1
TH0
TH1
IFCON
8F
80
P0
SP
DPL
DPH
DPL1
DPH1
PCON
87
CRCL
CRCH
X101
X110
X111
Bin/Hex
FF
TL2
F7
MD5
ARCON
TH2
EF
CF
A7
Note: Special Function Registers reset values and description for SM59R16A2/SM59R08A2
3.6.2 Pulse Width Modulation (PWM)
Mnemonic
PWMC
PWMD0H
PWMD0L
PWMD1H
PWMD1L
PWMD2H
PWMD2L
PWMD3H
PWMD3L
Description
PWM Control
register
PWM 0 Data
register high byte
PWM 0 Data
register low byte
PWM 1 Data
register high byte
PWM 1 Data
register low byte
PWM 2 Data
register high byte
PWM 2 Data
register low byte
PWM 3 Data
register high byte
PWM 3 Data
register low byte
Direct
Bit 7
Bit 6
B5h
-
-
BCh
-
-
Bit 5
PWM
PWMM[1:0]
-
BDh
BEh
-
-
-
B4h
Bit 2
Bit 1
Bit 0
RESET
PWM3
EN
PWM2
EN
PWM1
EN
PWM0
EN
00h
-
PWMD0[11:8]
-
-
-
-
-
PWMD1[11:8]
-
-
PWMD3[7:0]
00h
00h
PWMD2[11:8]
PWMD2[7:0]
-
00h
00h
PWMD1[7:0]
B2h
B3h
Bit 3
PWMD0[7:0]
BFh
B1h
Bit 4
00h
00h
PWMD3[11:8]
00h
00h
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
11
Ver B 2011/01
PWM 功能使用方法
Mnemonic: PWMC
7
6
5
4
PWMM[1:0]
3
PWM3EN
2
PWM2EN
1
PWM1EN
Address: B5h
0
Reset
PWM0EN
00h
PWMM[1:0]: PWM 模式旗標:
PWM output freq. = Fosc / Div.
PWMM[1:0]
Mode
Div.
8-bit mode
256
00
10-bit mode
1024
01
12-bit mode
4096
10
8-bit mode
256
11
here Fosc is the external crystal or oscillator frequency
PWM3EN: PWM Channel 3 致能旗標：
PWM3EN = 1 – PWM Channel 3 致能.
PWM3EN = 0 – PWM Channel 3 禁能.
PWM2EN: PWM Channel 2 致能旗標：
PWM2EN = 1 – PWM Channel 2 致能.
PWM2EN = 0 – PWM Channel 2 禁能.
PWM1EN: PWM Channel 1 致能旗標：
PWM1EN = 1 – PWM Channel 1 致能.
PWM1EN = 0 – PWM Channel 1 禁能.
PWM0EN: PWM 0 Channel 0 致能旗標：
PWM0EN = 1 – PWM Channel 0 致能.
PWM0EN = 0 – PWM Channel 0 禁能.
Mnemonic: PWMD0H
7
6
5
Mnemonic: PWMD0L
7
6
5
4
-
3
4
3
PWMD0[7:0]
2
1
PWMD0[11:8]
2
1
Address: BCh
0
Reset
00h
Address: BDh
0
Reset
00h
PWMD0[11:0]: PWM channel 0 資料暫存器：
可調整 PWM Channel 0 Duty Cycle
Mnemonic: PWMD1H
7
6
5
Mnemonic: PWMD1L
7
6
5
4
-
3
4
3
PWMD1[7:0]
2
1
PWMD1[11:8]
2
1
Address: BEh
0
Reset
00h
Address: BFh
0
Reset
00h
PWMD1[11:0]: PWM channel 1 資料暫存器：
可調整 PWM Channel 1 Duty Cycle
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
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Ver B 2011/01
PWM 功能使用方法
Mnemonic: PWMD2H
7
6
5
Mnemonic: PWMD2L
7
6
5
4
-
3
4
3
PWMD2[7:0]
2
1
PWMD2[11:8]
2
1
Address: B1h
0
Reset
00h
Address: B2h
0
Reset
00h
PWMD2[11:0]: PWM channel 2 資料暫存器：
可調整 PWM Channel 2 Duty Cycle
Mnemonic: PWMD3H
7
6
5
Mnemonic: PWMD3L
7
6
5
4
-
3
4
3
PWMD3[7:0]
2
1
PWMD3[11:8]
2
1
Address: B3h
0
Reset
00h
Address: B4h
0
Reset
00h
PWMD3[11:0]: PWM channel 3 資料暫存器：
可調整 PWM Channel 3 Duty Cycle
說明：
以PWM 8-bit模式，PWMD3資料暫存器為例，PWMD3值愈小duty cycle愈小，值愈大則反之。圖示如下：
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
13
Ver B 2011/01
PWM 功能使用方法
3.7 PWM 應用流程圖：
3.8 C 語言程式範例：
Describe:
main
Program:
//===============================
//INCLUDE FILES
//===============================
#include "..\h\SM59R16A2.h"
#include "..\[Demo]\Demo.h"
#include "..\PWM\pwm.h"
//===============================================================
//MAIN
//===============================================================
void main()
{
unsigned char Press_SW;
while(1)
{
Press_SW = ScanKeypad();
if(!Press_SW)
//SW3 Press
{
// sel 8-bit mode=Fosc/256, enable channel 3,2,1,0
PWMC = 0x0F ;
//Enable PWM
PWM0Duty(0x00, 0xff);
PWM1Duty(0x00, 0x7f);
PWM2Duty(0x00, 0x3f);
PWM3Duty(0x00, 0x1f);
//MPU Pin 23 full Cyc.
//MPU Pin 22
//MPU Pin 09
//MPU Pin 10
}
else
{
PWMC = 0x00;
}
}// End of while(1)
//Disable PWM
}
//===============================================================
void PWM0Duty(unsigned char PWM0_H, unsigned char PWM0_L)
{
PWMD0H = PWM0_H;
PWMD0L = PWM0_L;
}
//===============================================================
void PWM1Duty(unsigned char PWM1_H, unsigned char PWM1_L)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
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Ver B 2011/01
PWM 功能使用方法
{
PWMD1H = PWM1_H;
PWMD1L = PWM1_L;
}
//===============================================================
void PWM2Duty(unsigned char PWM2_H, unsigned char PWM2_L)
{
PWMD2H = PWM2_H;
PWMD2L = PWM2_L;
}
//===============================================================
void PWM3Duty(unsigned char PWM3_H, unsigned char PWM3_L)
{
PWMD3H = PWM3_H;
PWMD3L = PWM3_L;
}
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0181
15
Ver B 2011/01