MSP430, CCS, UART, printf 구현

MSP430, CCS, UART, printf 구현

※ msp430.h 를 사용하는 소스입니다.

Did you have a look at the example codes for the MCU that is provided by TI for almost every processor?

www.ti.com/lit/zip/slac536

The following examples show how to set up the clocks:

msp430fr59xx_cs_01.c       Configure MCLK for 8MHz operation
msp430fr59xx_cs_02.c       Configure MCLK for 16MHz operation
msp430fr59xx_cs_03.c       Output 32768Hz crystal on XT1 and observe failsafe
msp430fr59xx_cs_04.c       ACLK = XT1 = 32768Hz, SMCLK= XT2 = 8MHz, MCLK = DCO
msp430fr59xx_cs_05.c       Using LFXT in bypass mode, failsafe operation shown

0. 참고 사항

• C:\ti\msp\MSP430Ware_3_80_04_05\examples\devices\MSP430FR5xx_6xx\MSP430FR5x8x_MSP430FR692x_MSP430FR6x7x_MSP430FR6x8x_Code_Examples\C
  
• http://e2e.ti.com/support/microcontrollers/msp430/f/166/p/368560/1297094
• https://github.com/achopra6/MSP430FR6989/blob/master/timer.c
• http://www.ti.com/lit/ds/symlink/msp430fr6989.pdf
• http://www.ti.com/lit/ug/slau367o/slau367o.pdf

출처: http://coyoteugly.tistory.com/188 [마이콤 개발자를 위한 여행]

0. 참고 사항

• http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/p/30479/107146
  
• [MSP430FR6989 LaunchPad™ Development Kit] / http://www.ti.com/lit/ug/slau627a/slau627a.pdf
  
• [MSP430FR6989 DataSheet] / http://www.ti.com/lit/ds/symlink/msp430fr6989.pdf
• [MSP430FR6xx User's Guide] / http://www.ti.com/lit/ug/slau367o/slau367o.pdf

1. 소스 설명

full 소스는 아래 github를 통해 확인하세요.

1. support channel
 - USCI_A0
    - P2.1 : UCA0RXD
    - P2.0 : UCA0TXD  
 - USCI_A1
    - msp430fr6989 development kit backchannel (uart)
    - P3.5 : UCA1RXD
    - P3.4 : UCA1TXD
    
2. support option
 - USCI_Ax, CLOCK_1M,  BR_9600
 - (XXX) USCI_Ax, CLOCK_1M,  BR_115200
 - USCI_Ax, CLOCK_8M,  BR_9600
 - USCI_Ax, CLOCK_8M,  BR_115200
 - USCI_Ax, CLOCK_16M, BR_9600
 - USCI_Ax, CLOCK_16M, BR_115200

정수 출력 시에 (long int) 를 꼭 붙여 주세요. 안 그러면 값이 이상하게 나옵니다.

myprintf("%s\r\n", ptr);     myprintf("printf test\r\n");     myprintf("%s is null pointer\r\n", np);     myprintf("%d = 5\r\n", (long int)i);     myprintf("%d = - max int\r\n", mi);     myprintf("Long int 123456789 print out is %u", (long int)123456789);     myprintf("\r\nmi in hex is %x\r\n", (long int)mi);     myprintf("bs in dec is %u\r\n", (long int)bs);     myprintf("char %c = 'a'\r\n", 'a');     myprintf("hex %x = ff\r\n", (long int)0xff);     myprintf("hex %02x = 00\r\n", (long int)0);     myprintf("signed %d = unsigned %u = hex %x\r\n", (long int)-32767, (long int)-32767, (long int)-32767);     myprintf("signed %d = unsigned %u = hex %x\r\n", (long int)-3, (long int)-3, (long int)-3);     myprintf("%d %s(s)%", (long int)0, "message");     myprintf("\r\n");     myprintf("%d %s(s) with %%\r\n", (long int)0, "message");     myprintf("justif: \"%-10s\"\r\n", "left");     myprintf("justif: \"%10s\"\r\n", "right");     myprintf(" 3: %04d zero padded\r\n", (long int)3);     myprintf(" 3: %-4d left justif.\r\n", (long int)3);     myprintf(" 3: %4d right justif.\r\n", (long int)3);     myprintf("-3: %04d zero padded\r\n", (long int)-3);     myprintf("-3: %-4d left justif.\r\n", (long int)-3);     myprintf("-3: %4d right justif.\r\n\r\n\r\n", (long int)-3);

2. 소스

• https://github.com/sglee0223/msp430/tree/master/printf
  

3. 결과