msp430f449 msp430 launchpad

1
msp430f449msp430 launchpad

• 1?????IAR Embedded Workbench
• 2?IAR????????
• 3?IAR???

2
msp430f449??

• 1??????1.83.6V
• 2?????
• ????280UA(1MHZ,2.2V)
• ???? 1.1UA
• ???? (RAM????)0.1UA
• 3??5?????
• 4???????????????6us
• 5?12?A/D??? (8???????????????)
• 6?16???????(RISC),150ns????
• 7???3???/??????16????
• 8??????????UART/SPI????
• 9????????,?????????
• 10????????160?
• 11?FLASH????60KB,RAM?2KB

3
msp430f449

• 1?IO?
• 2???
• 3???
• 4???
• 5?AD
• 6?UART
• 7?PWM?
• 8????

4
1?IO?

• ??P??????
• 1?PxDIR ??/???????
• (0???? 1????)
• 2?PxIN ?????
• ???????????,????????,???????????????I/O
  ???????
• 3?PxOUT ?????
• ????????????????????
• 4?PxIFG ???????
• (0?????? 1?????)
• ?????8????,??????????????????
• ?8?????????????,??????????,??????
• ???????????gt1.5??MCLK???,??????????
• 5?PxIES ??????????
• (0????? 1?????)
• 6?PxSEL ???????
• (0?????I/O?? 1???????????)
• 7?PxREN ??/?????????
• (0?? 1??)

5

• ??????P?
• 1?P1?P2??????????
• 2?P6???A/D????
• 3?P1.2?P2.0???PWM?????
• 4?P1.1MCLK P1.5ACLK
• 5??????P2.4? P4.0???TXD,
• P2.5
  ?P4.1???RXD?

6

• ??????
• 1???P???????IO???
• 2???P?????????????
• ?????
• ? P1DIR0xff
  //?P1??????
• PIOUT0x20 //
  P1???0x20
• P1DIR0x00
  //?P1??????
• dataP1IN
  //??P1??????
• ????
• ? P1DIRBIT0
  //?P1.0?????
• P1OUTBIT0
  //P1.0??1
• P1OUTBIT0
  //P1.0??0
• P1DIRBIT0
  //?P1.0?????
• dataP1INBIT0
  //??P1.0??????

7
2???

• ???????
• 1?LFXT1CLK????(32768HZ)
• 2?XT2CLK????(8MHZ)
• 3?DCOCLK?????????46MHZ
• ????(???????)
• ?????????

8
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• ????????????????
• 1?ACLK????,??LFXT1CLK???
• ?,?????????????
• ???,?????????
• 2?ACLK/nACLK??1?2?4?8????
• P1.5??,?????????
• 3?MCLK?????,????????
• LFXT1CLK?XT2CLK?DCOCLK?
• ??,???1?2?4?8???
• ????P1.1??(????cpu)
• 4?SMCLK?????,????????
• XT2CLK?DCOCLK????(????????)

10

• ??MCLK????
• 1???????,MCLK???DCOCLK????1.048576MHZ
• ?????MCLK(311)32768
• 2?????ACLK??MCLK
• void clk_initial()
• do
• IFG1OFIFG //??????????
• __delay_cycles(200)
• while((IFG1OFIFG)!0)
  //????????????
• FLL_CTL1SELM1SELM0
  //??ACLK??MCLK

11

• 3????? XT2CLK??MCLK
• void clk_initial()
• do
• IFG1OFIFG //??????????
• __delay_cycles(200)
• while((IFG1OFIFG)!0)
  //????????????
• FLL_CTL1SELM1 //??XT2CLK??MCLK
• 4????? DCOCLK??MCLK??(1211) 2327687.995MHZ
• void CLK_initial()
• SCFI0FN_4 //??DCO???????2.826.6MH
  Z
• SCFQCTL249 //????,????DCO???????
• FLL_CTL0DCOPLUSOSCCAP_1
  //??DCO??MCLK???

12
3???

• ?????
• 1?????P1?P2
• 2???????
• 3??????????
• 4??????
• 5?A/D ?????
• 6???????
• ????? ????
• 1??????????
• ????????????????????????1
• ?P1???????
• ??????
• P1IEBIT0//??P1.0????

13

• ????????????????????????0
• ???P1???????
• ??????
• P1IEBIT0//??P1.0????
• 2??????????
• _EINT()//?????,???51?EA1
• _DINT()//?????,???51?EA0
• 3??????Interrupt Vectors
• define BASICTIMER_VECTOR (0 2u) / 0xFFE0
  Basic Timer /
• define PORT2_VECTOR (1 2u) / 0xFFE2
  Port 2 /
• define USART1TX_VECTOR (2 2u) / 0xFFE4
  USART 1 Transmit /
• define USART1RX_VECTOR (3 2u) / 0xFFE6
  USART 1 Receive /
• define PORT1_VECTOR (4 2u) / 0xFFE8
  Port 1 /
• define TIMERA1_VECTOR (5 2u) / 0xFFEA
  Timer A CC1-2, TA /
• define TIMERA0_VECTOR (6 2u) / 0xFFEC
  Timer A CC0 /
• define ADC12_VECTOR (7 2u) / 0xFFEE
  ADC /
• define USART0TX_VECTOR (8 2u) / 0xFFF0
  USART 0 Transmit /
• define USART0RX_VECTOR (9 2u) / 0xFFF2
  USART 0 Receive /
• define WDT_VECTOR (10 2u) / 0xFFF4
  Watchdog Timer /

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• 4??????
• ??????????
• PORT2_VECTOR (1 2u) / 0xFFE2 Port 2 /
• PORT1_VECTOR (4 2u) / 0xFFE8 Port 1 /
• TIMERA1_VECTOR (5 2u) / 0xFFEA Timer A CC1-2,
  TA /
• TIMERA0_VECTOR (6 2u) / 0xFFEC Timer A CC0 /
• ADC_VECTOR (7 2u) / 0xFFEE ADC /
• USART0TX_VECTOR (8 2u) / 0xFFF0 USART 0
  Transmit /
• USART0RX_VECTOR (9 2u) / 0xFFF2 USART 0
  Receive /
• WDT_VECTOR (10 2u) / 0xFFF4 Watchdog Timer /
• COMPARATORA_VECTOR (11 2u) / 0xFFF6 Comparator
  A /
• TIMERB1_VECTOR (12 2u) / 0xFFF8 Timer B CC1-2,
  TB /
• TIMERB0_VECTOR (13 2u) / 0xFFFA Timer B CC0 /
• NMI_VECTOR (14 2u) / 0xFFFC Non-maskae /
• RESET_VECTOR (15 2u) / 0xFFFE Reset Highest
  Priority /

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• 5??????
• ????????????????????(???????????)
• ??????????????
• 1)430???????????,?????????,????????????????
• msp430????,_DINT()?_EINT()??????????
• 2)??????????,????????????????,????????,???????????
  ??????????????
• 3)????????A??????,??????????B(??B?????A????),B????
  ????A???????????B??????????,? ?B????????????C,???
  ??????,???????,??????,B????????????A???,????????
• 4)??????????????,??????????,?????????,????????????
  ??????????!????????????
• 5)??????,??????,????????????,??TA/TB??????/????,??
  ??TAIV/TBIV,?????????
• ?????????????,??P1/P2???,??????????,????????"EINT
  ()"???,????????????,?? ??????????,???????????,???
  ??????????????????.

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• 6?????????(????)
• void interrupt_initial()
• P1DIRBIT7 //P1.7???
• P1IE0x80 //P1.7????
• P1IES0x00 //P1.7?????
• P1IFG0 //P1.7??????,???????????????????
• _EINT() //?????
• pragma vectorPORT1_VECTOR
• __interrupt void Port_1(void)
• P1IFGBIT7 //P1.7??????
• /??????????/

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4???

• ?????????
• 1?????????????????????,CPU?????,??
• ?CPU????,???????????
• 2????????????????????????????,???
• ?????
• ?????????
• 1????????
• 2????A?
• 3????B?
• 4?????RTC?

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• ??Timer_A?????
• 1?????????????
• 2?????????PWM????????????
• 3????????
• 4?8??????
• 5?16?????
• 6????PWM???????????????,?PWM?????????????,Timer_A
  ?????PWM,???????????PWM????
• ??????????
• 1?????????????,??????,???????????????????????????
  ??????,????????????????
• 2????????/?????CCR0??Timer_A???????????,??CCR0?16
  ????,??????????????65536???????????TAR??????CCR0??
  ,?????CCR0?????,?????,??0???????

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?????
??
void zengjishu() TACTLTASSEL1TACLR
//???????ACLK,????TAR?? CCTL0CCIE
//???? CCR0200 //????,?????32768/2
00/2 TACTLMC_1 //??Timer_A??????
P1DIRBIT0 //P1.0???? _EINT()
//????? pragma vertor TIMERA0_VECTOR __i
nterrupt void Timer_A(void) P1OUT0X01
//P1.0??
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• 3???????
  
• ??????0????0XFFFF?????0????,???CCR0?????(???????
  ??)

21

• ??
• void lianxujishu()
• TACTLTASSEL_1TACLR //???????ACLK,????TAR??
• CCTL0CCIE //????
• CCR01000 //????,?????32768/1000/2
• TACTLMC_2 //??Timer_A???????
• P1DIRBIT0 //P1.0????
• _EINT() //?????
• pragma vertor TIMERA0_VECTOR
• __interrupt void Timer_A(void)
• P1OUT0X01 //P1.0??
• CCR01000

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• 4??/??????????????????/?????,????,???????CCR0??,?
  ???????0?
• ????TAR???CCR01????CCR0?,????CCIFG0??,?1????
  0?,????TAIFG??

23

• 5???/????
• ??????
• 1????????/???????CCTLx??CAP1?,???????
  ???????????????????????,?TAR???????????/?????CCRx?
  ?
• ??1??????????????
• 2???????????
• 3??????
• 2????????/???????CCTLx??CAP0?,???????????Ti
  mer_A ?????/???,???????8?????

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5?A/D

• ??msp430f449???A/D?????
• 1? 12??????
• 2???????????,????????
• 3???8??????4??????
• 4???????,??????Vref?6????
• 5??????,??200Ks/s?
• 6???????
• 1??????????
  CONSEQ_0?
• 2??????????
  CONSEQ_2?
• 3???????????CONSEQ_1
  ?
• 4???????????CONSEQ_3
  ?
• ??ADC12?????

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• ??A/D???????
• 1???????
• P6SEL0x01 //??A/D??A0(P6.0)
• P6SELBIT7 //??A/D??A7(P6.7)
• 2???ADC12??,??????,????
• ADC12CTL0ADC12ON //??ADC12??
• ADC12CTL0SHT0_0 //???????4/200KHZ1
• ADC12CTL0REFON //?????????2.5V
• ADC12CTL0MSC //????/???
• 3???????,??????
• ADC12CTL1SHP //????SAMPCON???????
• ADC12CTL1ADC12SSEL_0
  //??????ADC12OSC?200KHZ
• ADC12CTL1CONSEQ_2//?????????
• 4?????(?????)
• ADC12CTL0ENC //????

27

• ???MSC1?SHP1?,??????SHI???????????
  ??,??????????????????????
• 5?????
• ADC12CTL0ADC12SC //????
• ??????????
• 1????????
• void ADC_convert()
• P6SEL0x01 //??A/D??A0(P6.0)
• ADC12CTL0ADC12ON SHT0_0
  //?ADC12??,???????4200KHZ1
• ADC12CTL1SHP //????SAMPCON???????
• ADC12CTL0ENC //????
• ADC12CTL0ADC12SC //????
• int Read_result()
• int result
• result ADC12MEM0
• return (result)

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• 2????????
• Void ADC_convert()
• P6SEL0x02 //??A/D??A1
• ADC12CTL0ADC12ONSHT0_8MSC
  //??ADC12??,?????????,???????4mclk64,?????????2.
  5v
• ADC12CTL1SHPADC12SSEL_2CONSEQ_2
  //????????????????????????????????
• ADC12CTL0ENC //????
• ADC12CTL0ADC12SC //????
• int Read_result()
• int result
• result ADC12MEM1
• return (result)

29

• 3?????????
• void ADC_convert()
• P6SEL0x0f
• ADC12MCTL0SREF_0INCH_0
• ADC12MCTL1SREF_0INCH_1
• ADC12MCTL2SREF_0INCH_2
• ADC12MCTL3SREF_0INCH_3EOS
  //EOS???????
• ADC12CTL0ADC12ONMSC SHT0_0
  //?ADC12??,???????4200KHZ1
• ADC12CTL1SHPCONSEQ_1 //????SAMPCON???????
• ADC12CTL0ENC //????
• ADC12CTL0ADC12SC //????
• _EINT() //???
• pragma vectorADC_VECTOR
• __interrupt void ADC12ISR(void)
• result0 ADC12MEM0
• result1 ADC12MEM1

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• 4?????????
• void ADC_convert()
• P6SEL0x0f
• ADC12MCTL0SREF_0INCH_0
• ADC12MCTL1SREF_0INCH_1
• ADC12MCTL2SREF_0INCH_2
• ADC12MCTL3SREF_0INCH_3EOS
  //EOS???????
• ADC12CTL0ADC12ONMSC SHT0_0
  //?ADC12??,???????4200KHZ1
• ADC12CTL1SHPCONSEQ_3 //????SAMPCON???????
• ADC12CTL0ENC //????
• ADC12CTL0ADC12SC //????
• _EINT() //???
• pragma vectorADC_VECTOR
• __interrupt void ADC12ISR(void)
• result0 ADC12MEM0
• result1 ADC12MEM1

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6?USART

• ?????????????????,?????????????????
  ???????????,msp430f449????????USART0?U
  SART1
• ????P2.4?P2.5?P4.0?P4.1????
  UART?????SPI?????
• ?????????????
• 1????????????????????
• 2???7??8???,???????????????
• 3???????????????
• 4????????????
• 5?????????????????????
• ??USART?????

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• ???????????(???)
• 1???????(USART0?USART1)?
• USART1 P4SEL0X03
• P4DIR0X01
  //P4.0???TXD,P4.1???RXD
• 2??SWRST1?,?????
• U1CTLSWRST //
  ??USART,?????
• 3????????????
• UTCTL1SSEL1 //UCLKMCLK
• 4?????????
• ME2UTXE1URXE1 //??RXD TXD
• 5????????
• U1CTLCHAR
  //???????8?,????7?
• 6??????? ?UBRU1BR0U1BR1 ?????3
• U1BR00X1B
  //??????????????????
• U1BR10X00
  //??????????????????
• U1MCTL0X03 //??????38400
• 7?SWRST0,???????
• U1CTLSWRST
  //?SWRST?1??????
• 8??????

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7?PWM?

• ??Timer_A????????PWM??
• void PWM_Creat(int a,int b)
• TACTLTASSEL_1TACLRID_3 //???????ACLK,???8??
  ,????TAR??
• CCR0255 //????,?????32768/256/8/2
  8HZ
• CCTL1OUTMOD_7
• CCR1a //????a/256
• CCTL2OUTMOD_7
• CCR2b //????b/256
• P1DIRBIT2 //CCR1
• P1SELBIT2
• P2DIRBIT0 //CCR2
• P2SELBIT0
• TACTLMC_1 //??Timer_A??????

35
???????????
36
8????

• ???????????
• 1?ifndef _ADC_H
• define _ADC_H
• extern void ADC_convert()
• extern int Read_result()
• endif
• 2?????????.C??

37
msp430launchpad

• Msp430g2553??
• 1??????1.83.6V
• 2?????
• ????280UA(1MHZ,2.2V)
• ???? 0.5UA
• ???? (RAM????)0.1UA
• 3??5?????
• 4???????????????1us
• 5?10?A/D??? (????????????,?????200Ks/s)
• 6?16???????(RISC),6.25ns????
• 7???3???/??????16????
• 8??????????UART/SPI/I2C????
• 9????????,?????????
• 11?FLASH????16KB,RAM?512B

38
Msp430g2553???
39
Msp430g2553

• 1?IO?
• 2???
• 3???
• 4???
• 5?AD
• 6?PWM?

40
1?IO

• ??P??????
• 1??P1?P2????????IO??
• 2???P??????????????
• 3??P?????????????????
• 4????P?????????????????
• ??P?? ????
• ???msp430f449??,????P2.6?P2.7????IO??,??
  ??????
• P2SEL(BIT6BIT7)

41
??IO????
42
2???

• ?????
• 1?ACLK??????,?? LFXT1CLK ?32768HZ?
• 2?MCLK?????,???5???
• 1?32768HZ,??ACLK?
• 2?1MHZ BCSCTL1
  CALBC1_1MHZ
• DCOCTL
  CALDCO_1MHZ
• 3?8MHZ BCSCTL1
  CALBC1_8MHZ
• DCOCTL
  CALDCO_8MHZ
• 4?12MHZ BCSCTL1
  CALBC1_12MHZ
• 
  DCOCTL CALDCO_12MHZ
• 5?16MHZ BCSCTL1
  CALBC1_16MHZ
• 
  DCOCTL CALDCO_16MHZ
• 3?SMCLK?????,???16MHZ?

43
???????
44
3???

• ????????msp430f449???
• ????
• void interrupt_initial()
• P1DIRBIT7 //P1.7???
• P1SELBIT7
• P1IEBIT7 //P1.7????
• P1IES0x80 //P1.7?????
• P1IFG0 //P1.7??????,???????????????????
• P1DIRBIT6
• P1OUTBIT6
• _EINT() //?????
• pragma vectorPORT1_VECTOR
• __interrupt void Port_1(void)
• P1IFGBIT7 //P1.7??????
• P1OUTBIT6 //????

45
4???

• ????????msp430f449???
• ????
• void zengjishu()
• TACTLTASSEL_2TACLRID_3 //???????MCLK,???8??
  ,????TAR??
• CCTL0CCIE //????
• CCR065535 //????,?????1048576/6553
  6/8/21HZ
• TACTLMC_1 //??Timer_A??????
• P1DIRBIT0 //P1.0????
• _EINT() //?????
• pragma vector TIMER0_A0_VECTOR
• __interrupt void Timer_A(void)
• P1OUTBIT0 //P1.0??

46
5?A/D

• ??????
• 1? 10??????
• 2???????????,????????
• 3???6??????2??????
• 4???????,??????Vref?8????
• 5??????,??200Ks/s?
• 6???????
• 1??????????
  CONSEQ_0?
• 2??????????
  CONSEQ_2?
• 3???????????CONSEQ_1
  ?
• 4???????????CONSEQ_3
  ?

47
??A/D???
48

• ????
• void ADC_convert()
• P1SEL0x20 //??A/D??A5
• ADC10CTL0 ADC10SHT_1 ADC10ONSREF_1REF2_5VR
  EFONMSC // ??ADC10??,???????8ADC10OSC/2,???????
  ??2.5v
• ADC10CTL1 INCH_5ADC10DIV_1CONSEQ_2 //
  input A5??????????A5?P1.5,????????????,?????2
• ADC10AE0 BIT5 // ?P1.5??AD??????
• ADC10CTL0ENC //????
• ADC10CTL0ADC10SC //????
• int Read_result()
• int result
• result ADC10MEM
• return (result)

49
6?PWM?

• ????
• void PWM_Creat(int a,int b)
• TACTLTASSEL_2TACLRID_3 //???????MCLK,???8??
  ,????TAR??
• CCR065535 //????,?????1048576/6553
  6/8/21HZ
• CCTL1OUTMOD_7
• CCR1a //????a/65536
• CCTL2OUTMOD_7
• CCR2b //????b/65536
• P1DIRBIT2 //CCR1
• P1SELBIT2
• P1DIRBIT7 //CCR2
• P1SELBIT7
• TACTLMC_1 //??Timer_A??????