《轻松玩转ARM Cortex-M0+微控制器基于飞思卡尔FRDM-KL25Z评估板》代码部分

/*! \page USB0 USB0 (Init_USB_OTG) ** This file implements the USB_OTG (USB0) module initialization ** according to the Peripheral Initialization settings, and ** defines interrupt service routines prototypes. - \subpage USB0_settings - \subpage USB0_regs_overview - \subpage USB0_regs_details - \ref USB0_module "Component documentation" \page USB0_regs_overview Registers Initialization Overview This page initialization values for the registers of the peripheral(s) configured by the component. <table> <tr><td colspan="4" class="ttitle1">USB0 Initialization</td></tr> <tr><td class="ttitle2">Address</td><td class="ttitle2">Register</td><td class="ttitle2">Register Value</td><td class="ttitle2">Register Description</td></tr> <tr><td>0x40048004</td><td>SIM_SOPT2</td><td> 0x00040000 </td><td>SIM_SOPT2 register, peripheral USB0.</td></tr> <tr><td>0x40048034</td><td>SIM_SCGC4</td><td> 0x00040000 </td><td>SIM_SCGC4 register, peripheral USB0.</td></tr> <tr><td>0x40072094</td><td>USB0_CTL</td><td> 0x00000003 </td><td>USB0_CTL register, peripheral USB0.</td></tr> <tr><td>0x40072100</td><td>USB0_USBCTRL</td><td> 0x000000C0 </td><td>USB0_USBCTRL register, peripheral USB0.</td></tr> <tr><td>0x40072010</td><td>USB0_OTGISTAT</td><td> 0x000000FF </td><td>USB0_OTGISTAT register, peripheral USB0.</td></tr> <tr><td>0x40072080</td><td>USB0_ISTAT</td><td> 0x000000FF </td><td>USB0_ISTAT register, peripheral USB0.</td></tr> <tr><td>0x40072088</td><td>USB0_ERRSTAT</td><td> 0x000000FF </td><td>USB0_ERRSTAT register, peripheral USB0.</td></tr> <tr><td>0x40072084</td><td>USB0_INTEN</td><td> 0x000000FF </td><td>USB0_INTEN register, peripheral USB0.</td></tr> <tr><td>0x4007208C</td><td>USB0_ERREN</td><td> 0x00000000 </td><td>USB0_ERREN register, peripheral USB0.</td></tr> <tr><td>0x4007210C</td><td>USB0_USBTRC0</td><td> 0x00000060 </td><td>USB0_USBTRC0 register, peripheral USB0.</td></tr> <tr><td>0x40072014</td><td>USB0_OTGICR</td><td> 0x00000000 </td><td>USB0_OTGICR register, peripheral USB0.</td></tr> <tr><td>0x40072098</td><td>USB0_ADDR</td><td> 0x00000000 </td><td>USB0_ADDR register, peripheral USB0.</td></tr> <tr><td>0x400720C0</td><td>USB0_ENDPT0</td><td> 0x00000000 </td><td>USB0_ENDPT0 register, peripheral USB0.</td></tr> <tr><td>0x400720C4</td><td>USB0_ENDPT1</td><td> 0x00000000 </td><td>USB0_ENDPT1 register, peripheral USB0.</td></tr> <tr><td>0x400720C8</td><td>USB0_ENDPT2</td><td> 0x00000000 </td><td>USB0_ENDPT2 register, peripheral USB0.</td></tr> <tr><td>0x400720CC</td><td>USB0_ENDPT3</td><td> 0x00000000 </td><td>USB0_ENDPT3 register, peripheral USB0.</td></tr> <tr><td>0x400720D0</td><td>USB0_ENDPT4</td><td> 0x00000000 </td><td>USB0_ENDPT4 register, peripheral USB0.</td></tr> <tr><td>0x400720D4</td><td>USB0_ENDPT5</td><td> 0x00000000 </td><td>USB0_ENDPT5 register, peripheral USB0.</td></tr> <tr><td>0x400720D8</td><td>USB0_ENDPT6</td><td> 0x00000000 </td><td>USB0_ENDPT6 register, peripheral USB0.</td></tr> <tr><td>0x400720DC</td><td>USB0_ENDPT7</td><td> 0x00000000 </td><td>USB0_ENDPT7 register, peripheral USB0.</td></tr> <tr><td>0x400720E0</td><td>USB0_ENDPT8</td><td> 0x00000000 </td><td>USB0_ENDPT8 register, peripheral USB0.</td></tr> <tr><td>0x400720E4</td><td>USB0_ENDPT9</td><td> 0x00000000 </td><td>USB0_ENDPT9 register, peripheral USB0.</td></tr> <tr><td>0x400720E8</td><td>USB0_ENDPT10</td><td> 0x00000000 </td><td>USB0_ENDPT10 register, peripheral USB0.</td></tr> <tr><td>0x400720EC</td><td>USB0_ENDPT11</td><td> 0x00000000 </td><td>USB0_ENDPT11 register, peripheral USB0.</td></tr> <tr><td>0x400720F0</td><td>USB0_ENDPT12</td><td> 0x00000000 </td><td>USB0_ENDPT12 register, peripheral USB0.</td></tr> <tr><td>0x400720F4</td><td>USB0_ENDPT13</td><td> 0x00000000 </td><td>USB0_ENDPT13 register, peripheral USB0.</td></tr> <tr><td>0x400720F8</td><td>USB0_ENDPT14</td><td> 0x00000000 </td><td>USB0_ENDPT14 register, peripheral USB0.</td></tr> <tr><td>0x400720FC</td><td>USB0_ENDPT15</td><td> 0x00000000 </td><td>USB0_ENDPT15 register, peripheral USB0.</td></tr> <tr><td>0x400720AC</td><td>USB0_SOFTHLD</td><td> 0x00000000 </td><td>USB0_SOFTHLD register, peripheral USB0.</td></tr> <tr><td>0x4007201C</td><td>USB0_OTGCTL</td><td> 0x00000000 </td><td>USB0_OTGCTL register, peripheral USB0.</td></tr> <tr><td>0x40072108</td><td>USB0_CONTROL</td><td> 0x00000000 </td><td>USB0_CONTROL register, peripheral USB0.</td></tr> </table> <br/> \page USB0_regs_details Register Initialization Details This page contains detailed description of initialization values for the registers of the peripheral(s) configured by the component. <div class="reghdr1">SIM_SOPT2</div> <div class="regdiag"> <table class="regtbl"> <tr class="trd1r"> <td class="trd1c">Bit</td><td>31</td><td>30</td><td>29</td><td>28</td><td>27</td><td>26</td><td>25</td><td>24</td><td>23</td> <td>22</td><td>21</td><td>20</td><td>19</td><td>18</td><td>17</td><td>16</td> </tr> <tr> <td class="trd1c">R</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td> <td colspan="1" rowspan="2">-</td><td colspan="2" rowspan="2">UART0SRC</td><td colspan="2" rowspan="2">TPMSRC</td> <td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td> <td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">USBSRC</td> <td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">PLLFLLSEL</td> </tr> <tr> <td class="trd1c">W</td> </tr> <tr class="trd1r"> <td class="trd1c">Reset</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td> <td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td> </tr> </table> <table class="regtbl"> <tr class="trd1r"> <td class="trd1c">Bit</td><td>15</td><td>14</td><td>13</td><td>12</td><td>11</td><td>10</td><td>9</td><td>8</td><td>7</td> <td>6</td><td>5</td><td>4</td><td>3</td><td>2</td><td>1</td><td>0</td> </tr> <tr> <td class="trd1c">R</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td> <td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td> <td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td><td colspan="3" rowspan="2">CLKOUTSEL</td> <td colspan="1" rowspan="2">RTCCLKOUTSEL</td><td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td> <td colspan="1" rowspan="2">-</td><td colspan="1" rowspan="2">-</td> </tr> <tr> <td class="trd1c">W</td> </tr> <tr class="trd1r"> <td class="trd1c">Reset</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td> <td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td> </tr> </table> </div> <table class="regtbl2"><tr><td class="trowtit" colspan="2">Address</td><td colspan="2">0x40048004</td></tr> <tr class="trowtit"><td class="trowtit" colspan="2">Initial value</td><td colspan="2">0x00040000</td></tr> <tr class="trowtit"><td class="trowtit" colspan="2">After-reset value</td><td colspan="2">0x00000000</td></tr> <tr><td class="ttitle2">Bit</td><td class="ttitle2">Field</td><td class="ttitle2">Value</td><td class="ttitle2">Description</td></tr> <tr><td>26 - 27</td><td>UART0SRC</td><td>0x00</td><td>UART0 clock source select</td> <tr><td>24 - 25</td><td>TPMSRC</td><td>0x00</td><td>TPM clock source select</td> <tr><td>18</td><td>USBSRC</td><td>0x01</td><td>USB clock source select</td> <tr><td>16</td><td>PLLFLLSEL</td><td>0x00</td><td>PLL/FLL clock select</td> <tr><td>5 - 7</td><td>CLKOUTSEL</td><td>0x00</td><td>CLKOUT select</td> <tr><td>4</td><td>RTCCLKOUTSEL</td><td>0x00</td><td>RTC cloc