C语言代码错误分析：缺少分号导致编译失败

#define TX_BUF_SIZE 4096 #define RX_BUF_SIZE 4096 uint8_t UART_TX_BUF[TX_BUF_SIZE]; uint8_t UART_RX_BUF[RX_BUF_SIZE]; sprintf(UART_TX_BUF, '%s', 'Hello world\n'); uart_write_bytes(UART_NUM_0, UART_TX_BUF, strlen(UART_TX_BUF));