整型数转换成字符串

1万 · 2016-10-26 21:40

求各位大神指点我想将一个整型数转换成字符串然后在串口上显示网上看的说用sprintf这个函数可是我调用这个函数的时候（已加入头文件stdio.h）编译的时候他说有错

1万 · 2016-10-26 21:42

楼主详细说说怎么回事啊，这么说太笼统了

1万 · 2016-10-26 21:43

#148 declaration is incompatible with "int sprintf(char *, const char *, ...)" (declared at line 188 of "D:/ti/ccsv5/tools/compiler/msp430_4.1.1/include/stdio.h") main.c /TEST1 line 12 C/C++ Problem
#93 identifier-list parameters may only be used in a function definition main.c /TEST1 line 12 C/C++ Problem

1万 · 2016-10-26 21:45

把你的代码贴上看看啊，根据提示似乎你参数使用错误

1万 · 2016-10-26 21:46

#include "msp430g2553.h"
#include <stdio.h>

void UARTPutstring( );
void UARTPutChar();
void UART_init();

int a=10;
char *s;

void UARTPutChar(unsigned int cTX)
{
UCA0TXBUF=cTX;
while (!(IFG2&UCA0TXIFG));  //waiting UCA0TXBUF is empty
IFG2&=~UCA0TXIFG;          //clear TX interrupt flag
}

void UARTPutstring(char *str)
{

do
{
UARTPutChar(*str);
}
while(*++str!='\0');
UARTPutChar('\n');

}

void UART_init(void)
{
P1SEL |=BIT1+BIT2;  //设置为外围模块第二功能P1.1,2 = USART0 TXD/RXD
P1SEL2|= BIT1 + BIT2 ; // P1.1 = RXD, P1.2=TXD
P1DIR  |= BIT2;          //P1.2  UART_TX
P1DIR  &=~BIT1;          //P1.2  UART_RX    //串口发送数据端口为输出，接收数据端口为输入
UCA0CTL1|=UCSWRST; //USART第0位被置位0后，开始设置配置UART
UCA0CTL0 &=~UC7BIT;    //设置数据位为8位
UCA0CTL1 |=UCSSEL_2;    //选择波特率寄存器时钟信号，smCLK
UCA0BR0=109;
UCA0BR1=0;
UCA0MCTL = UCBRS1; //32k时钟下波特率为9600
UCA0CTL1&=~UCSWRST;
IE2 |= UCA0TXIE;
}

void main(void)
{

WDTCTL = WDTPW + WDTHOLD;                // 关闭看门狗
UART_init();
sprintf(s,a);
UARTPutstring(s);

}
  这样

Description       Resource       Path       Location       Type
#169 argument of type "int" is incompatible with parameter of type "const char *"       main.c       /TEST1       line 57       C/C++ Problem