PIC單片機串口傳輸數據錯誤,是什么原因

ID:80213 · 發表于 2022-7-21 16:47

為什么我串口傳輸的數據在電腦打印輸出不是'S',但是如果我使用#define定義KS 為'S'時就能正常打印輸出‘S’？這兩者有什么區別嗎？

單片機代碼如下：
void main(void)
{
// initialize the device
SYSTEM_Initialize();

// When using interrupts, you need to set the Global and Peripheral Interrupt Enable bits
// Use the following macros to:

// Enable the Global Interrupts
//INTERRUPT_GlobalInterruptEnable();

// Enable the Peripheral Interrupts
//INTERRUPT_PeripheralInterruptEnable();

// Disable the Global Interrupts
//INTERRUPT_GlobalInterruptDisable();

// Disable the Peripheral Interrupts
//INTERRUPT_PeripheralInterruptDisable();
char KS;
KS= 'S';
while (1)
{
// Add your application code
putch(KS);
}
}