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Keil forum TM4C123GH6PZ这款芯片如何支持浮点数据打印

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TM4C123GH6PZ这款芯片如何支持浮点数据打印

风正豪 over 2 years ago

我使用串口进行浮点数据打印会进入FaultIsR中断。后面得知，TI的芯片进行浮点数据打印需要打开CCS的设置，选择支持串口浮点打印。请问keil如何进行让TM4C123GH6PZ这款芯片支持浮点数据打印？

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void UART_printf(uint32_t baseAddress, const char *format,...)
{
    uint32_t length;
    va_list args;
    uint32_t i;
    char TxBuffer[128] = {0};
    va_start(args, format);
    length = vsnprintf((char*)TxBuffer, sizeof(TxBuffer), (char*)format, args);
    va_end(args);
    for(i = 0; i < length; i++)
    {
         while(UARTBusy(baseAddress));
         UARTCharPut(baseAddress,TxBuffer[i]);
    }
}
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void UART_printf(uint32_t baseAddress, const char *format,...)
{
	uint32_t length;
	va_list args;
	uint32_t i;
	char TxBuffer[128] = {0};

	va_start(args, format);
	length = vsnprintf((char*)TxBuffer, sizeof(TxBuffer), (char*)format, args);
	va_end(args);

	for(i = 0; i < length; i++)
	{
		 while(UARTBusy(baseAddress));
		 UARTCharPut(baseAddress,TxBuffer[i]);
	}
}