https://blog.csdn.net/qq_35181236/article/details/132789258

使用 uart9

配置

打印

void hal_entry(void)
{/* TODO: add your own code here */fsp_err_t err;uint8_t c;/* 配置串口 */err = g_uart9.p_api->open(g_uart9.p_ctrl, g_uart9.p_cfg);while (1){g_uart9.p_api->write(g_uart9.p_ctrl, "uart9 send test\r\n", 8);for (size_t i = 0; i < 3*1000*1000; i++){;}}
}