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<html><head><title>Interface: HPLUART</title></head><body><table BORDER="0" CELLPADDING="3" CELLSPACING="0" width="100%"><tr><td><font size="-1"><b><font color="blue"><a href="apps_p.html">Apps</a></font></b> <b><a href="components_p.html">Components</a></b> <b><a href="interfaces_p.html">Interfaces</a></b> <b><a href="allfiles_p.html">All Files</a></b> <b><a href="index.html">Source Tree</a></b> </font></td><td align="right"><font size="-1">source: <b><a href="tos.interfaces.HPLUART.nc.source">tos.interfaces.HPLUART.nc</a></b></font></td></tr></table><hr><h1 align="center">Interface: HPLUART</h1><p> The byte-level interface to the UART, which can send and receive simultaneously. <p> This interface, as it directly abstracts hardware, follows the hardware interface convention of not maintaining state. Therefore, some conditions that could be understood by a higher layer to be errors execute properly; for example, one can call <code>txBit</code> when in receive mode. A higher level interface must provide the checks for conditions such as this. <table border="0" cellpadding="0"><tr valign="top"><td><b>Author:</b><td> Jason Hill </td></tr><tr valign="top"><td> </td><td> David Gay </td></tr><tr valign="top"><td> </td><td> Philip Levis</td></tr></table><p><dl><dt>Components providing this interface:<dd> <a href="tos.platform.mica2.HPLUART0M.nc.html">tos.platform.mica2.HPLUART0M</a><br> <a href="tos.platform.mica2.HPLUARTC.nc.html">tos.platform.mica2.HPLUARTC</a><br></dl><p><dl><dt>Components requiring this interface:<dd> <a href="tos.system.UARTM.nc.html">tos.system.UARTM</a><br></dl><p><table BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><tr BGCOLOR="#CCCCFF"><td><h3>Commands</h3></td></tr></table><ul><li> result_t <a href="# result_t init(void)"><b>init</b> </a>(void)<menu> Initialize the UART.</menu><p><li> result_t <b>stop</b>(void)<menu> TUrn off the UART <table border="0" cellpadding="0"><tr valign="top"><td><b>Returns:</b></td><td> SUCCESS always</td></tr></table></menu><p><li> result_t <a href="# result_t put(uint8_t data)"><b>put</b> </a>(uint8_t data)<menu> Send one byte of data.</menu><p></ul><table BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><tr BGCOLOR="#CCCCFF"><td><h3>Events</h3></td></tr></table><ul><li> result_t <a href="# result_t get(uint8_t data)"><b>get</b> </a>(uint8_t data)<menu> A byte of data has been received.</menu><p><li> result_t <a href="# result_t putDone(void)"><b>putDone</b> </a>(void)<menu> The previous call to <code>put</code> has completed; another byte may now be sent.</menu><p></ul><table BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><tr BGCOLOR="#CCCCFF"><td><h3>Commands - Details</h3></td></tr></table> <a name=" result_t init(void)"></a> <h4>init</h4> result_t <b>init</b>(void)<P><menu> Initialize the UART. <table border="0" cellpadding="0"><tr valign="top"><td><b>Returns:</b></td><td> SUCCESS always.</td></tr></table></menu><hr> <a name=" result_t put(uint8_t data)"></a> <h4>put</h4> result_t <b>put</b>(uint8_t data)<P><menu> Send one byte of data. There should only one outstanding send at any time; one must wait for the <code>putDone</code> event before calling <code>put</code> again. <table border="0" cellpadding="0"><tr valign="top"><td><b>Returns:</b></td><td> SUCCESS always.</td></tr></table></menu><table BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><tr BGCOLOR="#CCCCFF"><td><h3>Events - Details</h3></td></tr></table> <a name=" result_t get(uint8_t data)"></a> <h4>get</h4> result_t <b>get</b>(uint8_t data)<P><menu> A byte of data has been received. <table border="0" cellpadding="0"><tr valign="top"><td><b>Returns:</b></td><td> SUCCESS always.</td></tr></table></menu><hr> <a name=" result_t putDone(void)"></a> <h4>putDone</h4> result_t <b>putDone</b>(void)<P><menu> The previous call to <code>put</code> has completed; another byte may now be sent. <table border="0" cellpadding="0"><tr valign="top"><td><b>Returns:</b></td><td> SUCCESS always.</td></tr></table></menu>⌨️ 快捷键说明
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