399 lines
45 KiB
HTML
399 lines
45 KiB
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 <span id="projectnumber">0.4</span>
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<div class="title">sdram.c</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*****************************************************************************</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright(C) 2011, Embedded Artists AB</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * All rights reserved.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> ******************************************************************************</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Software that is described herein is for illustrative purposes only</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * which provides customers with programming information regarding the</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * products. This software is supplied "AS IS" without any warranties.</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Embedded Artists AB assumes no responsibility or liability for the</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * use of the software, conveys no license or title under any patent,</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * copyright, or mask work right to the product. Embedded Artists AB</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * reserves the right to make changes in the software without</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * notification. Embedded Artists AB also make no representation or</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * warranty that such application will be suitable for the specified</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * use without further testing or modification.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/******************************************************************************</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * Includes</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "../../board.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if BOARD == BOARD_EA4357</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "lpc43xx.h"</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "lpc_types.h"</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "lpc43xx_scu.h"</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "lpc43xx_timer.h"</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "lpc43xx_cgu.h"</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "sdram.h"</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <string.h></span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">/******************************************************************************</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * Defines and typedefs</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">/* SDRAM refresh time to 16 clock num */</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#define EMC_SDRAM_REFRESH(freq,time) \</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"> (((uint64_t)((uint64_t)time * freq)/16000000000ull)+1)</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">/******************************************************************************</span></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * External global variables</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">/******************************************************************************</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * Local variables</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">/******************************************************************************</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * Local Functions</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">/*-------------------------PRIVATE FUNCTIONS------------------------------*/</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">/*********************************************************************</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * @brief Calculate EMC Clock from nano second</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * @param[in] freq - frequency of EMC Clk</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * @param[in] time - nano second</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * @return None</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> **********************************************************************/</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> uint32_t NS2CLK(uint32_t freq, uint32_t time){</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> (((uint64_t)time*freq/1000000000));</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">static</span> <span class="keywordtype">void</span> pinConfig(<span class="keywordtype">void</span>)</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> {</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">/* Set up EMC pin */</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  scu_pinmux( 2 , 9 , MD_PLN_FAST , 3 );<span class="comment">//A0</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  scu_pinmux( 2 , 10 , MD_PLN_FAST , 3 );<span class="comment">//A1</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  scu_pinmux( 2 , 11 , MD_PLN_FAST , 3 );<span class="comment">//A2</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  scu_pinmux( 2 , 12 , MD_PLN_FAST , 3 );<span class="comment">//A3</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  scu_pinmux( 2 , 13 , MD_PLN_FAST , 3 );<span class="comment">//A4</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  scu_pinmux( 1 , 0 , MD_PLN_FAST , 2 );<span class="comment">//A5</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  scu_pinmux( 1 , 1 , MD_PLN_FAST , 2 );<span class="comment">//A6</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  scu_pinmux( 1 , 2 , MD_PLN_FAST , 2 );<span class="comment">//A7</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  scu_pinmux( 2 , 8 , MD_PLN_FAST , 3 );<span class="comment">//A8</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  scu_pinmux( 2 , 7 , MD_PLN_FAST , 3 );<span class="comment">//A9</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  scu_pinmux( 2 , 6 , MD_PLN_FAST , 2 );<span class="comment">//A10</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  scu_pinmux( 2 , 2 , MD_PLN_FAST , 2 );<span class="comment">//A11</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  scu_pinmux( 2 , 1 , MD_PLN_FAST , 2 );<span class="comment">//A12</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  scu_pinmux( 2 , 0 , MD_PLN_FAST , 2 );<span class="comment">//A13</span></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  scu_pinmux( 6 , 8 , MD_PLN_FAST , 1 );<span class="comment">//A14</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  scu_pinmux( 6 , 7 , MD_PLN_FAST , 1 );<span class="comment">//A15</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  scu_pinmux( 13 , 16 , MD_PLN_FAST , 2 );<span class="comment">//A16</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  scu_pinmux( 13 , 15 , MD_PLN_FAST , 2 );<span class="comment">//A17</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  scu_pinmux( 14 , 0 , MD_PLN_FAST , 3 );<span class="comment">//A18</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  scu_pinmux( 14 , 1 , MD_PLN_FAST , 3 );<span class="comment">//A19</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  scu_pinmux( 14 , 2 , MD_PLN_FAST , 3 );<span class="comment">//A20</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  scu_pinmux( 14 , 3 , MD_PLN_FAST , 3 );<span class="comment">//A21</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  scu_pinmux( 14 , 4 , MD_PLN_FAST , 3 );<span class="comment">//A22</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  scu_pinmux( 10 , 4 , MD_PLN_FAST , 3 );<span class="comment">//A23</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  scu_pinmux( 1 , 7 , MD_PLN_FAST , 3 );<span class="comment">//D0</span></div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  scu_pinmux( 1 , 8 , MD_PLN_FAST , 3 );<span class="comment">//D1</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  scu_pinmux( 1 , 9 , MD_PLN_FAST , 3 );<span class="comment">//D2</span></div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  scu_pinmux( 1 , 10 , MD_PLN_FAST , 3 );<span class="comment">//D3</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  scu_pinmux( 1 , 11 , MD_PLN_FAST , 3 );<span class="comment">//D4</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  scu_pinmux( 1 , 12 , MD_PLN_FAST , 3 );<span class="comment">//D5</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  scu_pinmux( 1 , 13 , MD_PLN_FAST , 3 );<span class="comment">//D6</span></div>
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|
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  scu_pinmux( 1 , 14 , MD_PLN_FAST , 3 );<span class="comment">//D7</span></div>
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|
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  scu_pinmux( 5 , 4 , MD_PLN_FAST , 2 );<span class="comment">//D8</span></div>
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|
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  scu_pinmux( 5 , 5 , MD_PLN_FAST , 2 );<span class="comment">//D9</span></div>
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|
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  scu_pinmux( 5 , 6 , MD_PLN_FAST , 2 );<span class="comment">//D10</span></div>
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|
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  scu_pinmux( 5 , 7 , MD_PLN_FAST , 2 );<span class="comment">//D11</span></div>
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|
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  scu_pinmux( 5 , 0 , MD_PLN_FAST , 2 );<span class="comment">//D12</span></div>
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|
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  scu_pinmux( 5 , 1 , MD_PLN_FAST , 2 );<span class="comment">//D13</span></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  scu_pinmux( 5 , 2 , MD_PLN_FAST , 2 );<span class="comment">//D14</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  scu_pinmux( 5 , 3 , MD_PLN_FAST , 2 );<span class="comment">//D15</span></div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  scu_pinmux( 13 , 2 , MD_PLN_FAST , 2 );<span class="comment">//D16</span></div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  scu_pinmux( 13 , 3 , MD_PLN_FAST , 2 );<span class="comment">//D17</span></div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  scu_pinmux( 13 , 4 , MD_PLN_FAST , 2 );<span class="comment">//D18</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  scu_pinmux( 13 , 5 , MD_PLN_FAST , 2 );<span class="comment">//D19</span></div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  scu_pinmux( 13 , 6 , MD_PLN_FAST , 2 );<span class="comment">//D20</span></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  scu_pinmux( 13 , 7 , MD_PLN_FAST , 2 );<span class="comment">//D21</span></div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  scu_pinmux( 13 , 8 , MD_PLN_FAST , 2 );<span class="comment">//D22</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  scu_pinmux( 13 , 9 , MD_PLN_FAST , 2 );<span class="comment">//D23</span></div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  scu_pinmux( 14 , 5 , MD_PLN_FAST , 3 );<span class="comment">//D24</span></div>
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|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  scu_pinmux( 14 , 6 , MD_PLN_FAST , 3 );<span class="comment">//D25</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  scu_pinmux( 14 , 7 , MD_PLN_FAST , 3 );<span class="comment">//D26</span></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  scu_pinmux( 14 , 8 , MD_PLN_FAST , 3 );<span class="comment">//D27</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  scu_pinmux( 14 , 9 , MD_PLN_FAST , 3 );<span class="comment">//D28</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  scu_pinmux( 14 , 10 , MD_PLN_FAST , 3 );<span class="comment">//D29</span></div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  scu_pinmux( 14 , 11 , MD_PLN_FAST , 3 );<span class="comment">//D30</span></div>
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|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  scu_pinmux( 14 , 12 , MD_PLN_FAST , 3 );<span class="comment">//D31</span></div>
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|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  </div>
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|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  scu_pinmux( 1 , 3 , MD_PLN_FAST , 3 );<span class="comment">//OE</span></div>
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|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  scu_pinmux( 1 , 6 , MD_PLN_FAST , 3 );<span class="comment">//WE</span></div>
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|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  scu_pinmux( 1 , 4 , MD_PLN_FAST , 3 );<span class="comment">//BLS0</span></div>
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|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  scu_pinmux( 6 , 6 , MD_PLN_FAST , 1 );<span class="comment">//BLS1 </span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  scu_pinmux( 13 , 13 , MD_PLN_FAST , 2 );<span class="comment">//BLS2</span></div>
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|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  scu_pinmux( 13 , 10 , MD_PLN_FAST , 2 );<span class="comment">//BLS3</span></div>
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|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
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|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  scu_pinmux( 1 , 5 , MD_PLN_FAST , 3 );<span class="comment">//CS0 </span></div>
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|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  scu_pinmux( 6 , 3 , MD_PLN_FAST , 3 );<span class="comment">//CS1</span></div>
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|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  scu_pinmux( 13 , 12 , MD_PLN_FAST , 2 );<span class="comment">//CS2</span></div>
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|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  scu_pinmux( 13 , 11 , MD_PLN_FAST , 2 );<span class="comment">//CS3</span></div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  </div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  scu_pinmux( 6 , 4 , MD_PLN_FAST , 3 );<span class="comment">//CAS</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  scu_pinmux( 6 , 5 , MD_PLN_FAST , 3 );<span class="comment">//RAS</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div>
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|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  scu_pinmux( 6 , 9 , MD_PLN_FAST , 3 );<span class="comment">//DYCS0</span></div>
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|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  scu_pinmux( 6 , 1 , MD_PLN_FAST , 1 );<span class="comment">//DYCS1</span></div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  scu_pinmux( 13 , 14 , MD_PLN_FAST , 2 );<span class="comment">//DYCS2</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  scu_pinmux( 15 , 14 , MD_PLN_FAST , 3 );<span class="comment">//DYCS3</span></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
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|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  scu_pinmux( 6 , 11 , MD_PLN_FAST , 3 );<span class="comment">//CKEOUT0</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  scu_pinmux( 6 , 2 , MD_PLN_FAST , 1 );<span class="comment">//CKEOUT1</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  scu_pinmux( 13 , 1 , MD_PLN_FAST , 2 );<span class="comment">//CKEOUT2</span></div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  scu_pinmux( 14 , 15 , MD_PLN_FAST , 3 );<span class="comment">//CKEOUT3</span></div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div>
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|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  scu_pinmux( 6 , 12 , MD_PLN_FAST , 3 );<span class="comment">//DQMOUT0</span></div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  scu_pinmux( 6 , 10 , MD_PLN_FAST , 3 );<span class="comment">//DQMOUT1</span></div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  scu_pinmux( 13 , 0 , MD_PLN_FAST , 2 );<span class="comment">//DQMOUT2</span></div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  scu_pinmux( 14 , 13 , MD_PLN_FAST , 3 );<span class="comment">//DQMOUT3</span></div>
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|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> }</div>
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|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
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|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
|
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">/******************************************************************************</span></div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> * Public Functions</span></div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> *****************************************************************************/</span></div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment">/******************************************************************************</span></div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> *</span></div>
|
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> * Description:</span></div>
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|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> * Initialize the SDRAM</span></div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> *****************************************************************************/</span></div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> uint32_t sdram_init (<span class="keywordtype">void</span>)</div>
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|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> {</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  uint32_t pclk, temp;</div>
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|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  uint64_t tmpclk;</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  pinConfig(); <span class="comment">//Full 32-bit Data bus, 24-bit Address </span></div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  </div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">/* Select EMC clock-out */</span></div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  LPC_SCU->SFSCLK_0 = MD_PLN_FAST;</div>
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|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  LPC_SCU->SFSCLK_1 = MD_PLN_FAST;</div>
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|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  LPC_SCU->SFSCLK_2 = MD_PLN_FAST;</div>
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|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  LPC_SCU->SFSCLK_3 = MD_PLN_FAST;</div>
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|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
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|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  LPC_EMC->CONTROL = 0x00000001;</div>
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|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  LPC_EMC->CONFIG = 0x00000000;</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  LPC_EMC->DYNAMICCONFIG0 = 1<<14 | 0<<12 | 2<<9 | 1<<7; <span class="comment">/* 256Mb, 8Mx32, 4 banks, row=12, column=9 */</span></div>
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|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  pclk = CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE);</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  LPC_EMC->DYNAMICRASCAS0 = 0x00000202; <span class="comment">/* 2 RAS, 2 CAS latency */</span></div>
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|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  LPC_EMC->DYNAMICREADCONFIG = 0x00000001; <span class="comment">/* Command delayed strategy, using EMCCLKDELAY */</span></div>
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|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  LPC_EMC->DYNAMICRP = NS2CLK(pclk, 20);</div>
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|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  LPC_EMC->DYNAMICRAS = NS2CLK(pclk, 42);</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  LPC_EMC->DYNAMICSREX = NS2CLK(pclk, 63);</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  LPC_EMC->DYNAMICAPR = 0x00000005;</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  LPC_EMC->DYNAMICDAL = 0x00000005;</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  LPC_EMC->DYNAMICWR = 2;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  LPC_EMC->DYNAMICRC = NS2CLK(pclk, 63);</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  LPC_EMC->DYNAMICRFC = NS2CLK(pclk, 63);</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  LPC_EMC->DYNAMICXSR = NS2CLK(pclk, 63);</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  LPC_EMC->DYNAMICRRD = NS2CLK(pclk, 14);</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  LPC_EMC->DYNAMICMRD = 0x00000002;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
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|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  TIM_Waitus(100); <span class="comment">/* wait 100ms */</span></div>
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|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  LPC_EMC->DYNAMICCONTROL = 0x00000183; <span class="comment">/* Issue NOP command */</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  TIM_Waitus(200); <span class="comment">/* wait 200ms */</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  LPC_EMC->DYNAMICCONTROL = 0x00000103; <span class="comment">/* Issue PALL command */</span></div>
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|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  LPC_EMC->DYNAMICREFRESH = EMC_SDRAM_REFRESH(pclk,70); <span class="comment">/* ( n * 16 ) -> 32 clock cycles */</span></div>
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|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">//for(i = 0; i < 0x80; i++); /* wait 128 AHB clock cycles */</span></div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  TIM_Waitus(200); <span class="comment">/* wait 200ms */</span></div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  tmpclk = (uint64_t)15625*(uint64_t)pclk/1000000000/16;</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  LPC_EMC->DYNAMICREFRESH = tmpclk; <span class="comment">/* ( n * 16 ) -> 736 clock cycles -> 15.330uS at 48MHz <= 15.625uS ( 64ms / 4096 row ) */</span></div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  LPC_EMC->DYNAMICCONTROL = 0x00000083; <span class="comment">/* Issue MODE command */</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">//Timing for 48/60/72MHZ Bus</span></div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  temp = *((<span class="keyword">volatile</span> uint32_t *)(SDRAM_BASE | (2<<4| 2)<<(9+2+2))); <span class="comment">/* 4 burst, 2 CAS latency */</span></div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  temp = temp;</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  LPC_EMC->DYNAMICCONTROL = 0x00000000; <span class="comment">/* Issue NORMAL command */</span></div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">//[re]enable buffers</span></div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  LPC_EMC->DYNAMICCONFIG0 |= 1<<19;</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> TRUE;</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> }</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> uint32_t sdram_test( <span class="keywordtype">void</span> )</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> {</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">volatile</span> uint32_t *wr_ptr; </div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">volatile</span> uint16_t *short_wr_ptr;</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  uint32_t data;</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  uint32_t i, j;</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  wr_ptr = (uint32_t *)SDRAM_BASE;</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  short_wr_ptr = (uint16_t *)wr_ptr;</div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  </div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">/* 16 bit write */</span></div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">for</span> (i = 0; i < SDRAM_SIZE/0x40000; i++)</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  {</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">for</span> (j = 0; j < 0x100; j++)</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  {</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  *short_wr_ptr++ = (i + j) & 0xFFFF;</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  *short_wr_ptr++ = ((i + j) + 1) & 0xFFFF;</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  }</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">/* Verifying */</span></div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  wr_ptr = (uint32_t *)SDRAM_BASE;</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">for</span> (i = 0; i < SDRAM_SIZE/0x40000; i++)</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  {</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">for</span> (j = 0; j < 0x100; j++)</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  {</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  data = *wr_ptr; </div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">if</span> (data != (((((i + j) + 1) & 0xFFFF) << 16) | ((i + j) & 0xFFFF)))</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  {</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">return</span> 0x0;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  }</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  wr_ptr++;</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  }</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">return</span> 0x1;</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> }</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor">#endif</span></div>
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