add : USB CDC虚拟串口通讯

4G/tools/_temp/script/temp_script/log.lua

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+module(..., package.seeall)
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+LOG_SILENT = 0x00;
+LOGLEVEL_TRACE = 0x01;
+LOGLEVEL_DEBUG = 0x02;
+LOGLEVEL_INFO = 0x03;
+LOGLEVEL_WARN = 0x04;
+LOGLEVEL_ERROR = 0x05;
+LOGLEVEL_FATAL = 0x06;
+
+
+local LEVEL_TAG = {'T', 'D', 'I', 'W', 'E', 'F'}
+local PREFIX_FMT = "[%s]-[%s]"
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+local function _log(level, tag, ...)
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+local OPENLEVEL = LOG_LEVEL and LOG_LEVEL or LOGLEVEL_INFO
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+if OPENLEVEL == LOG_SILENT or OPENLEVEL > level then return end
+
+local prefix = string.format(PREFIX_FMT, LEVEL_TAG[level], type(tag)=="string" and tag or "")
+print(prefix, ...)
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+
+
+end
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+function trace(tag, ...)
+_log(LOGLEVEL_TRACE, tag, ...)
+end
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+function debug(tag, ...)
+_log(LOGLEVEL_DEBUG, tag, ...)
+end
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+function info(tag, ...)
+_log(LOGLEVEL_INFO, tag, ...)
+end
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+function warn(tag, ...)
+_log(LOGLEVEL_WARN, tag, ...)
+end
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+function error(tag, ...)
+_log(LOGLEVEL_ERROR, tag, ...)
+end
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+function fatal(tag, ...)
+_log(LOGLEVEL_FATAL, tag, ...)
+end
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+function openTrace(v, uartid, baudrate)
+rtos.set_trace(v and 1 or 0, uartid,baudrate)
+end