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41 | ingob | 1 | /*#######################################################################################*/ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
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3 | /*#######################################################################################*/ |
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4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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5 | // + Copyright (c) 2008 Ingo Busker, Holger Buss |
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6 | // + Nur für den privaten Gebrauch |
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7 | // + FOR NON COMMERCIAL USE ONLY |
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8 | // + www.MikroKopter.com |
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9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
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11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
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12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
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13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
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14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
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15 | // + Verkauf von Luftbildaufnahmen, usw. |
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16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
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18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
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19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
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21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
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22 | // + eindeutig als Ursprung verlinkt werden |
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23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
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25 | // + Benutzung auf eigene Gefahr |
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26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
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27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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28 | // + Die PORTIERUNG der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
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29 | // + mit unserer Zustimmung zulässig |
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30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
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32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
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34 | // + this list of conditions and the following disclaimer. |
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35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
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36 | // + from this software without specific prior written permission. |
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37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
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38 | // + for non-commercial use (directly or indirectly) |
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39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
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40 | // + with our written permission |
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41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
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42 | // + clearly linked as origin |
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43 | // + * PORTING this software (or part of it) to systems (other than hardware from www.mikrokopter.de) is NOT allowed |
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44 | // |
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45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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55 | // + POSSIBILITY OF SUCH DAMAGE. |
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56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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57 | //#include <stdio.h> |
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58 | #include "91x_lib.h" |
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136 | killagreg | 59 | #include "config.h" |
41 | ingob | 60 | #include "uart1.h" |
61 | |||
62 | /********************************************************/ |
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63 | /* Initialize UART2 */ |
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64 | /********************************************************/ |
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65 | void UART2_Init(void) |
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66 | { |
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67 | UART_InitTypeDef UART_InitStructure; |
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68 | GPIO_InitTypeDef GPIO_InitStructure; |
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69 | |||
110 | killagreg | 70 | UART1_PutString("\r\n UART2 init..."); |
41 | ingob | 71 | |
72 | SCU_APBPeriphClockConfig(__UART2, ENABLE); // Enable the UART2 Clock |
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73 | |||
74 | SCU_APBPeriphClockConfig(__GPIO5, ENABLE); // Enable the GPIO5 Clock |
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75 | /*Configure UART2_Rx pin GPIO5.2*/ |
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76 | GPIO_StructInit(&GPIO_InitStructure); |
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77 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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78 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; |
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79 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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80 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Enable; |
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81 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; // UART2_RxD |
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82 | GPIO_Init(GPIO5, &GPIO_InitStructure); |
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83 | |||
84 | SCU_APBPeriphClockConfig(__GPIO3, ENABLE); // Enable the GPIO3 Clock |
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85 | /*Configure UART2_Tx pin GPIO3.0*/ |
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86 | GPIO_StructInit(&GPIO_InitStructure); |
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87 | GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput; |
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88 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; |
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89 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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90 | GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt2; // UART2_TX |
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91 | GPIO_Init(GPIO3, &GPIO_InitStructure); |
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92 | |||
93 | |||
94 | /* UART2 configured as follow: |
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95 | - Word Length = 8 Bits |
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96 | - One Stop Bit |
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97 | - No parity |
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98 | - BaudRate = 57600 baud |
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99 | - Hardware flow control Disabled |
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100 | - Receive and transmit enabled |
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101 | - Receive and transmit FIFOs are Disabled |
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102 | */ |
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103 | UART_StructInit(&UART_InitStructure); |
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104 | UART_InitStructure.UART_WordLength = UART_WordLength_8D; |
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105 | UART_InitStructure.UART_StopBits = UART_StopBits_1; |
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106 | UART_InitStructure.UART_Parity = UART_Parity_No ; |
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110 | killagreg | 107 | UART_InitStructure.UART_BaudRate = UART2_BAUD_RATE; |
41 | ingob | 108 | UART_InitStructure.UART_HardwareFlowControl = UART_HardwareFlowControl_None; |
109 | UART_InitStructure.UART_Mode = UART_Mode_Tx_Rx; |
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110 | UART_InitStructure.UART_FIFO = UART_FIFO_Enable; |
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111 | UART_InitStructure.UART_TxFIFOLevel = UART_FIFOLevel_1_2; |
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136 | killagreg | 112 | UART_InitStructure.UART_RxFIFOLevel = UART_FIFOLevel_1_8; |
41 | ingob | 113 | |
114 | UART_DeInit(UART2); // reset uart 2 to default |
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115 | UART_Init(UART2, &UART_InitStructure); // initialize uart 2 |
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116 | |||
117 | // enable uart 2 interrupts selective |
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118 | UART_ITConfig(UART2, UART_IT_Receive | UART_IT_ReceiveTimeOut, ENABLE); |
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119 | UART_Cmd(UART2, ENABLE); // enable uart 2 |
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136 | killagreg | 120 | // configure the uart 2 interupt line |
121 | VIC_Config(UART2_ITLine, VIC_IRQ, PRIORITY_UART2); |
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41 | ingob | 122 | // enable the uart 2 IRQ |
123 | VIC_ITCmd(UART2_ITLine, ENABLE); |
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124 | |||
110 | killagreg | 125 | UART1_PutString("ok"); |
41 | ingob | 126 | } |
127 | |||
128 | |||
129 | void UART2_Deinit(void) |
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130 | { |
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131 | GPIO_InitTypeDef GPIO_InitStructure; |
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132 | |||
110 | killagreg | 133 | UART1_PutString("\r\n UART2 deinit..."); |
41 | ingob | 134 | VIC_ITCmd(UART2_ITLine, DISABLE); // disable the uart 2 IRQ |
135 | UART_Cmd(UART2, DISABLE); // disable uart 2 |
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136 | UART_DeInit(UART2); // reset uart 0 to default |
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137 | |||
138 | SCU_APBPeriphClockConfig(__UART2, DISABLE); // disable the UART2 Clock |
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139 | |||
140 | SCU_APBPeriphClockConfig(__GPIO5, ENABLE); |
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141 | // unmap UART2 from FC |
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142 | // set port pin 5.2 (serial data from FC) to input and disconnect from IP |
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143 | GPIO_StructInit(&GPIO_InitStructure); |
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144 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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145 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; |
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146 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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147 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Disable; |
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148 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; |
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149 | GPIO_Init(GPIO5, &GPIO_InitStructure); |
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150 | |||
151 | SCU_APBPeriphClockConfig(__GPIO3, ENABLE); |
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152 | // set port pin 3.0 (serial data to FC) to input and disconnect from IP |
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153 | GPIO_StructInit(&GPIO_InitStructure); |
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154 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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155 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; |
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156 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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157 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Disable; |
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158 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; |
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159 | GPIO_Init(GPIO3, &GPIO_InitStructure); |
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160 | |||
110 | killagreg | 161 | UART1_PutString("ok"); |
41 | ingob | 162 | } |
163 | |||
164 | /********************************************************/ |
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165 | /* UART2 Interrupt Handler */ |
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166 | /********************************************************/ |
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167 | void UART2_IRQHandler(void) |
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168 | { |
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169 | // if receive irq or receive timeout irq has occured |
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170 | if((UART_GetITStatus(UART2, UART_IT_Receive) != RESET) || (UART_GetITStatus(UART2, UART_IT_ReceiveTimeOut) != RESET) ) |
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171 | { |
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172 | UART_ClearITPendingBit(UART2, UART_IT_Receive); // clear receive interrupt flag |
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173 | UART_ClearITPendingBit(UART2, UART_IT_ReceiveTimeOut); // clear receive timeout interrupt flag |
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174 | |||
175 | // if debug UART is UART2 |
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176 | if (DebugUART == UART2) |
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177 | { // forward received data to the UART1 tx buffer |
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178 | while(UART_GetFlagStatus(UART2, UART_FLAG_RxFIFOEmpty) != SET) |
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179 | { |
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180 | // wait for space in the tx buffer of the UART1 |
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181 | while(UART_GetFlagStatus(UART1, UART_FLAG_TxFIFOFull) == SET) {}; |
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182 | // move the byte from the rx buffer of UART2 to the tx buffer of UART1 |
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183 | UART_SendData(UART1, UART_ReceiveData(UART2)); |
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184 | } |
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185 | } |
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186 | else |
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187 | { |
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188 | // ignore serial data from the FC |
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189 | while(UART_GetFlagStatus(UART2, UART_FLAG_RxFIFOEmpty) != SET) |
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190 | UART_ReceiveData(UART2); |
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191 | } |
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192 | } // eof receive irq or receive timeout irq |
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193 | } |