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diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/CMSIS/CMSIS debug support.htm b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/CMSIS/CMSIS debug support.htm deleted file mode 100644 index 36e0446..0000000 --- a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/CMSIS/CMSIS debug support.htm +++ /dev/null @@ -1,243 +0,0 @@ -<html> - -<head> -<title>CMSIS Debug Support</title> -<meta http-equiv="Content-Type" content="text/html; charset=windows-1252"> -<meta name="GENERATOR" content="Microsoft FrontPage 6.0"> -<meta name="ProgId" content="FrontPage.Editor.Document"> -<style> -<!-- -/*----------------------------------------------------------- -Keil Software CHM Style Sheet ------------------------------------------------------------*/ -body { color: #000000; background-color: #FFFFFF; font-size: 75%; font-family: - Verdana, Arial, 'Sans Serif' } -a:link { color: #0000FF; text-decoration: underline } -a:visited { color: #0000FF; text-decoration: underline } -a:active { color: #FF0000; text-decoration: underline } -a:hover { color: #FF0000; text-decoration: underline } -h1 { font-family: Verdana; font-size: 18pt; color: #000080; font-weight: bold; - text-align: Center; margin-right: 3 } -h2 { font-family: Verdana; font-size: 14pt; color: #000080; font-weight: bold; - background-color: #CCCCCC; margin-top: 24; margin-bottom: 3; - padding: 6 } -h3 { font-family: Verdana; font-size: 10pt; font-weight: bold; background-color: - #CCCCCC; margin-top: 24; margin-bottom: 3; padding: 6 } -pre { font-family: Courier New; font-size: 10pt; background-color: #CCFFCC; - margin-left: 24; margin-right: 24 } -ul { list-style-type: square; margin-top: 6pt; margin-bottom: 0 } -ol { margin-top: 6pt; margin-bottom: 0 } -li { clear: both; margin-bottom: 6pt } -table { font-size: 100%; border-width: 0; padding: 0 } -th { color: #FFFFFF; background-color: #000080; text-align: left; vertical-align: - bottom; padding-right: 6pt } -tr { text-align: left; vertical-align: top } -td { text-align: left; vertical-align: top; padding-right: 6pt } -.ToolT { font-size: 8pt; color: #808080 } -.TinyT { font-size: 8pt; text-align: Center } -code { color: #000000; background-color: #E0E0E0; font-family: 'Courier New', Courier; - line-height: 120%; font-style: normal } -/*----------------------------------------------------------- -Notes ------------------------------------------------------------*/ -p.note { font-weight: bold; clear: both; margin-bottom: 3pt; padding-top: 6pt } -/*----------------------------------------------------------- -Expanding/Contracting Divisions ------------------------------------------------------------*/ -#expand { text-decoration: none; margin-bottom: 3pt } -img.expand { border-style: none; border-width: medium } -div.expand { display: none; margin-left: 9pt; margin-top: 0 } -/*----------------------------------------------------------- -Where List Tags ------------------------------------------------------------*/ -p.wh { font-weight: bold; clear: both; margin-top: 6pt; margin-bottom: 3pt } -table.wh { width: 100% } -td.whItem { white-space: nowrap; font-style: italic; padding-right: 6pt; padding-bottom: - 6pt } -td.whDesc { padding-bottom: 6pt } -/*----------------------------------------------------------- -Keil Table Tags ------------------------------------------------------------*/ -table.kt { border: 1pt solid #000000 } -th.kt { white-space: nowrap; border-bottom: 1pt solid #000000; padding-left: 6pt; - padding-right: 6pt; padding-top: 4pt; padding-bottom: 4pt } -tr.kt { } -td.kt { color: #000000; background-color: #E0E0E0; border-top: 1pt solid #A0A0A0; - padding-left: 6pt; padding-right: 6pt; padding-top: 2pt; - padding-bottom: 2pt } -/*----------------------------------------------------------- ------------------------------------------------------------*/ ---> - -</style> -</head> - -<body> - -<h1>CMSIS Debug Support</h1> - -<hr> - -<h2>Cortex-M3 ITM Debug Access</h2> -<p> - The Cortex-M3 incorporates the Instrumented Trace Macrocell (ITM) that provides together with - the Serial Viewer Output trace capabilities for the microcontroller system. The ITM has - 32 communication channels which are able to transmit 32 / 16 / 8 bit values; two ITM - communication channels are used by CMSIS to output the following information: -</p> -<ul> - <li>ITM Channel 0: used for printf-style output via the debug interface.</li> - <li>ITM Channel 31: is reserved for RTOS kernel awareness debugging.</li> -</ul> - -<h2>Debug IN / OUT functions</h2> -<p>CMSIS provides following debug functions:</p> -<ul> - <li>ITM_SendChar (uses ITM channel 0)</li> - <li>ITM_ReceiveChar (uses global variable)</li> - <li>ITM_CheckChar (uses global variable)</li> -</ul> - -<h3>ITM_SendChar</h3> -<p> - <strong>ITM_SendChar</strong> is used to transmit a character over ITM channel 0 from - the microcontroller system to the debug system. <br> - Only a 8 bit value is transmitted. -</p> -<pre> -static __INLINE uint32_t ITM_SendChar (uint32_t ch) -{ - /* check if debugger connected and ITM channel enabled for tracing */ - if ((CoreDebug->DEMCR & CoreDebug_DEMCR_TRCENA) && - (ITM->TCR & ITM_TCR_ITMENA) && - (ITM->TER & (1UL << 0)) ) - { - while (ITM->PORT[0].u32 == 0); - ITM->PORT[0].u8 = (uint8_t)ch; - } - return (ch); -}</pre> - -<h3>ITM_ReceiveChar</h3> -<p> - ITM communication channel is only capable for OUT direction. For IN direction - a globel variable is used. A simple mechansim detects if a character is received. - The project to test need to be build with debug information. -</p> - -<p> - The globale variable <strong>ITM_RxBuffer</strong> is used to transmit a 8 bit value from debug system - to microcontroller system. <strong>ITM_RxBuffer</strong> is 32 bit wide to enshure a proper handshake. -</p> -<pre> -extern volatile int ITM_RxBuffer; /* variable to receive characters */ -</pre> -<p> - A dedicated bit pattern is used to determin if <strong>ITM_RxBuffer</strong> is empty - or contains a valid value. -</p> -<pre> -#define ITM_RXBUFFER_EMPTY 0x5AA55AA5 /* value identifying ITM_RxBuffer is ready for next character */ -</pre> -<p> - <strong>ITM_ReceiveChar</strong> is used to receive a 8 bit value from the debug system. The function is nonblocking. - It returns the received character or '-1' if no character was available. -</p> -<pre> -static __INLINE int ITM_ReceiveChar (void) { - int ch = -1; /* no character available */ - - if (ITM_RxBuffer != ITM_RXBUFFER_EMPTY) { - ch = ITM_RxBuffer; - ITM_RxBuffer = ITM_RXBUFFER_EMPTY; /* ready for next character */ - } - - return (ch); -} -</pre> - -<h3>ITM_CheckChar</h3> -<p> - <strong>ITM_CheckChar</strong> is used to check if a character is received. -</p> -<pre> -static __INLINE int ITM_CheckChar (void) { - - if (ITM_RxBuffer == ITM_RXBUFFER_EMPTY) { - return (0); /* no character available */ - } else { - return (1); /* character available */ - } -}</pre> - - -<h2>ITM Debug Support in uVision</h2> -<p> - uVision uses in a debug session the <strong>Debug (printf) Viewer</strong> window to - display the debug data. -</p> -<p>Direction microcontroller system -> uVision:</p> -<ul> - <li> - Characters received via ITM communication channel 0 are written in a printf style - to <strong>Debug (printf) Viewer</strong> window. - </li> -</ul> - -<p>Direction uVision -> microcontroller system:</p> -<ul> - <li>Check if <strong>ITM_RxBuffer</strong> variable is available (only performed once).</li> - <li>Read character from <strong>Debug (printf) Viewer</strong> window.</li> - <li>If <strong>ITM_RxBuffer</strong> empty write character to <strong>ITM_RxBuffer</strong>.</li> -</ul> - -<p class="Note">Note</p> -<ul> - <li><p>Current solution does not use a buffer machanism for trasmitting the characters.</p> - </li> -</ul> - -<h2>RTX Kernel awareness in uVision</h2> -<p> - uVision / RTX are using a simple and efficient solution for RTX Kernel awareness. - No format overhead is necessary.<br> - uVsion debugger decodes the RTX events via the 32 / 16 / 8 bit ITM write access - to ITM communication channel 31. -</p> - -<p>Following RTX events are traced:</p> -<ul> - <li>Task Create / Delete event - <ol> - <li>32 bit access. Task start address is transmitted</li> - <li>16 bit access. Task ID and Create/Delete flag are transmitted<br> - High byte holds Create/Delete flag, Low byte holds TASK ID. - </li> - </ol> - </li> - <li>Task switch event - <ol> - <li>8 bit access. Task ID of current task is transmitted</li> - </ol> - </li> -</ul> - -<p class="Note">Note</p> -<ul> - <li><p>Other RTOS information could be retrieved via memory read access in a polling mode manner.</p> - </li> -</ul> - - -<p class="MsoNormal"><span lang="EN-GB"> </span></p> - -<hr> - -<p class="TinyT">Copyright © KEIL - An ARM Company.<br> -All rights reserved.<br> -Visit our web site at <a href="http://www.keil.com">www.keil.com</a>. -</p> - -</body> - -</html>
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