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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CAN/Networking/main.c @ 8:58d76cf522ff

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Split out code into separate files.
author Daniel O'Connor <darius@dons.net.au>
date Sat, 04 Feb 2012 13:29:31 +1030
parents c59513fd84fb
children
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1 /**
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2 ******************************************************************************
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3 * @file CAN/Networking/main.c
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4 * @author MCD Application Team
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5 * @version V3.5.0
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6 * @date 08-April-2011
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7 * @brief Main program body
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8 ******************************************************************************
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9 * @attention
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10 *
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11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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17 *
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18 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
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19 ******************************************************************************
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20 */
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21
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22 /* Includes ------------------------------------------------------------------*/
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23 #include "stm32f10x.h"
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24 #include "platform_config.h"
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25
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26 /** @addtogroup STM32F10x_StdPeriph_Examples
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27 * @{
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28 */
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29
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30 /** @addtogroup CAN_Networking
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31 * @{
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32 */
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33
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34
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35 /* Private typedef -----------------------------------------------------------*/
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36 /* Private define ------------------------------------------------------------*/
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37 #define __CAN1_USED__
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38 /* #define __CAN2_USED__*/
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39
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40 #ifdef __CAN1_USED__
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41 #define CANx CAN1
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42 #define GPIO_CAN GPIO_CAN1
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43 #define GPIO_Remapping_CAN GPIO_Remapping_CAN1
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44 #define GPIO_CAN GPIO_CAN1
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45 #define GPIO_Pin_CAN_RX GPIO_Pin_CAN1_RX
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46 #define GPIO_Pin_CAN_TX GPIO_Pin_CAN1_TX
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47 #else /*__CAN2_USED__*/
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48 #define CANx CAN2
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49 #define GPIO_CAN GPIO_CAN2
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50 #define GPIO_Remapping_CAN GPIO_Remap_CAN2
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51 #define GPIO_CAN GPIO_CAN2
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52 #define GPIO_Pin_CAN_RX GPIO_Pin_CAN2_RX
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53 #define GPIO_Pin_CAN_TX GPIO_Pin_CAN2_TX
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54 #endif /* __CAN1_USED__ */
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55
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56 #define KEY_PRESSED 0x01
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57 #define KEY_NOT_PRESSED 0x00
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58
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59 /* Private macro -------------------------------------------------------------*/
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60 /* Private variables ---------------------------------------------------------*/
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61 CAN_InitTypeDef CAN_InitStructure;
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62 CAN_FilterInitTypeDef CAN_FilterInitStructure;
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63 CanTxMsg TxMessage;
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64 uint8_t KeyNumber = 0x0;
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65
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66 /* Private function prototypes -----------------------------------------------*/
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67 void NVIC_Config(void);
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68 void CAN_Config(void);
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69 void LED_Display(uint8_t Ledstatus);
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70 void Init_RxMes(CanRxMsg *RxMessage);
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71 void Delay(void);
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72
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73 /* Private functions ---------------------------------------------------------*/
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74
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75 /**
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76 * @brief Main program.
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77 * @param None
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78 * @retval None
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79 */
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80 int main(void)
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81 {
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82 /*!< At this stage the microcontroller clock setting is already configured,
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83 this is done through SystemInit() function which is called from startup
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84 file (startup_stm32f10x_xx.s) before to branch to application main.
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85 To reconfigure the default setting of SystemInit() function, refer to
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86 system_stm32f10x.c file
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87 */
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88
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89 /* NVIC configuration */
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90 NVIC_Config();
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91
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92 /* Configures LED 1..4 */
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93 STM_EVAL_LEDInit(LED1);
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94 STM_EVAL_LEDInit(LED2);
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95 STM_EVAL_LEDInit(LED3);
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96 STM_EVAL_LEDInit(LED4);
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97
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98 /* Configure Push button key */
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99 STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_GPIO);
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100
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101 /* CAN configuration */
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102 CAN_Config();
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103
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104 CAN_ITConfig(CANx, CAN_IT_FMP0, ENABLE);
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105
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106 /* turn off all leds*/
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107 STM_EVAL_LEDOff(LED1);
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108 STM_EVAL_LEDOff(LED2);
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109 STM_EVAL_LEDOff(LED3);
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110 STM_EVAL_LEDOff(LED4);
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111
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112 /* Infinite loop */
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113 while(1)
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114 {
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115 while(STM_EVAL_PBGetState(BUTTON_KEY) == KEY_PRESSED)
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116 {
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117 if(KeyNumber == 0x4)
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118 {
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119 KeyNumber = 0x00;
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120 }
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121 else
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122 {
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123 LED_Display(++KeyNumber);
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124 TxMessage.Data[0] = KeyNumber;
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125 CAN_Transmit(CANx, &TxMessage);
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126 Delay();
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127
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128 while(STM_EVAL_PBGetState(BUTTON_KEY) != KEY_NOT_PRESSED)
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129 {
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130 }
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131 }
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132 }
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133 }
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134 }
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135
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136 /**
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137 * @brief Configures the CAN.
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138 * @param None
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139 * @retval None
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140 */
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141 void CAN_Config(void)
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142 {
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143 GPIO_InitTypeDef GPIO_InitStructure;
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144
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145 /* GPIO clock enable */
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146 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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147 #ifdef __CAN1_USED__
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148 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_CAN1, ENABLE);
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149 #else /*__CAN2_USED__*/
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150 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_CAN1, ENABLE);
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151 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_CAN2, ENABLE);
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152 #endif /* __CAN1_USED__ */
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parents:
diff changeset
153 /* Configure CAN pin: RX */
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diff changeset
154 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_CAN_RX;
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parents:
diff changeset
155 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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parents:
diff changeset
156 GPIO_Init(GPIO_CAN, &GPIO_InitStructure);
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parents:
diff changeset
157
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
158 /* Configure CAN pin: TX */
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diff changeset
159 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_CAN_TX;
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diff changeset
160 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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diff changeset
161 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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diff changeset
162 GPIO_Init(GPIO_CAN, &GPIO_InitStructure);
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diff changeset
163
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diff changeset
164 GPIO_PinRemapConfig(GPIO_Remapping_CAN , ENABLE);
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diff changeset
165
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parents:
diff changeset
166 /* CANx Periph clock enable */
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parents:
diff changeset
167 #ifdef __CAN1_USED__
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diff changeset
168 RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
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parents:
diff changeset
169 #else /*__CAN2_USED__*/
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diff changeset
170 RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
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diff changeset
171 RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN2, ENABLE);
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diff changeset
172 #endif /* __CAN1_USED__ */
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diff changeset
173
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diff changeset
174
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parents:
diff changeset
175 /* CAN register init */
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diff changeset
176 CAN_DeInit(CANx);
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177 CAN_StructInit(&CAN_InitStructure);
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178
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diff changeset
179 /* CAN cell init */
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diff changeset
180 CAN_InitStructure.CAN_TTCM = DISABLE;
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diff changeset
181 CAN_InitStructure.CAN_ABOM = DISABLE;
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182 CAN_InitStructure.CAN_AWUM = DISABLE;
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diff changeset
183 CAN_InitStructure.CAN_NART = DISABLE;
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184 CAN_InitStructure.CAN_RFLM = DISABLE;
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diff changeset
185 CAN_InitStructure.CAN_TXFP = DISABLE;
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diff changeset
186 CAN_InitStructure.CAN_Mode = CAN_Mode_Normal;
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187
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diff changeset
188 /* CAN Baudrate = 1MBps*/
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189 CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
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diff changeset
190 CAN_InitStructure.CAN_BS1 = CAN_BS1_3tq;
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diff changeset
191 CAN_InitStructure.CAN_BS2 = CAN_BS2_5tq;
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diff changeset
192 CAN_InitStructure.CAN_Prescaler = 4;
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diff changeset
193 CAN_Init(CANx, &CAN_InitStructure);
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diff changeset
194
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diff changeset
195 /* CAN filter init */
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diff changeset
196 #ifdef __CAN1_USED__
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197 CAN_FilterInitStructure.CAN_FilterNumber = 0;
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diff changeset
198 #else /*__CAN2_USED__*/
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199 CAN_FilterInitStructure.CAN_FilterNumber = 14;
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diff changeset
200 #endif /* __CAN1_USED__ */
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diff changeset
201 CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
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diff changeset
202 CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
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diff changeset
203 CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
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diff changeset
204 CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
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diff changeset
205 CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
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diff changeset
206 CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
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diff changeset
207 CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
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diff changeset
208 CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
209 CAN_FilterInit(&CAN_FilterInitStructure);
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diff changeset
210
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diff changeset
211 /* Transmit */
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diff changeset
212 TxMessage.StdId = 0x321;
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diff changeset
213 TxMessage.ExtId = 0x01;
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diff changeset
214 TxMessage.RTR = CAN_RTR_DATA;
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diff changeset
215 TxMessage.IDE = CAN_ID_STD;
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216 TxMessage.DLC = 1;
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diff changeset
217 }
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diff changeset
218
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
219 /**
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diff changeset
220 * @brief Configures the NVIC for CAN.
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diff changeset
221 * @param None
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diff changeset
222 * @retval None
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diff changeset
223 */
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diff changeset
224 void NVIC_Config(void)
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diff changeset
225 {
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diff changeset
226 NVIC_InitTypeDef NVIC_InitStructure;
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diff changeset
227
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diff changeset
228 NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
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diff changeset
229
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diff changeset
230 #ifndef STM32F10X_CL
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diff changeset
231 #ifdef __CAN1_USED__
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diff changeset
232 NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
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diff changeset
233 #else /*__CAN2_USED__*/
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diff changeset
234 /* CAN2 is not implemented in the device */
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diff changeset
235 #error "CAN2 is implemented only in Connectivity line devices"
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diff changeset
236 #endif /*__CAN1_USED__*/
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diff changeset
237 #else
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diff changeset
238 #ifdef __CAN1_USED__
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diff changeset
239 NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
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diff changeset
240 #else /*__CAN2_USED__*/
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diff changeset
241 NVIC_InitStructure.NVIC_IRQChannel = CAN2_RX0_IRQn;
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diff changeset
242 #endif /*__CAN1_USED__*/
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diff changeset
243
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
244 #endif /* STM32F10X_CL*/
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diff changeset
245 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0;
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diff changeset
246 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0;
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diff changeset
247 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
248 NVIC_Init(&NVIC_InitStructure);
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
249 }
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
250
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
251 /**
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
252 * @brief Initializes a Rx Message.
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
253 * @param CanRxMsg *RxMessage
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diff changeset
254 * @retval None
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
255 */
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
256 void Init_RxMes(CanRxMsg *RxMessage)
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parents:
diff changeset
257 {
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parents:
diff changeset
258 uint8_t i = 0;
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
259
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
260 RxMessage->StdId = 0x00;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
261 RxMessage->ExtId = 0x00;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
262 RxMessage->IDE = CAN_ID_STD;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
263 RxMessage->DLC = 0;
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
264 RxMessage->FMI = 0;
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
265 for (i = 0;i < 8;i++)
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parents:
diff changeset
266 {
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diff changeset
267 RxMessage->Data[i] = 0x00;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
268 }
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
269 }
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
270
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
271 /**
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
272 * @brief Turn ON/OFF the dedicate led
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diff changeset
273 * @param Ledstatus: Led number from 0 to 3.
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parents:
diff changeset
274 * @retval None
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
275 */
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parents:
diff changeset
276 void LED_Display(uint8_t Ledstatus)
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parents:
diff changeset
277 {
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parents:
diff changeset
278 /* Turn off all leds */
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
279 STM_EVAL_LEDOff(LED1);
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parents:
diff changeset
280 STM_EVAL_LEDOff(LED2);
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
281 STM_EVAL_LEDOff(LED3);
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
282 STM_EVAL_LEDOff(LED4);
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
283
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
284 switch(Ledstatus)
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
285 {
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Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
286 case(1):
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parents:
diff changeset
287 STM_EVAL_LEDOn(LED1);
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
288 break;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
289
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
290 case(2):
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
291 STM_EVAL_LEDOn(LED2);
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
292 break;
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
293
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
294 case(3):
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
295 STM_EVAL_LEDOn(LED3);
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
296 break;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
297
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
298 case(4):
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
299 STM_EVAL_LEDOn(LED4);
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
300 break;
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
301 default:
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
302 break;
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
303 }
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
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304 }
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305
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306 /**
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307 * @brief Delay
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308 * @param None
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309 * @retval None
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310 */
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311 void Delay(void)
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312 {
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313 uint16_t nTime = 0x0000;
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314
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315 for(nTime = 0; nTime <0xFFF; nTime++)
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316 {
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317 }
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318 }
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319
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320 #ifdef USE_FULL_ASSERT
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321
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322 /**
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323 * @brief Reports the name of the source file and the source line number
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324 * where the assert_param error has occurred.
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325 * @param file: pointer to the source file name
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326 * @param line: assert_param error line source number
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327 * @retval None
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328 */
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329 void assert_failed(uint8_t* file, uint32_t line)
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330 {
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331 /* User can add his own implementation to report the file name and line number,
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332 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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333
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334 /* Infinite loop */
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335 while (1)
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336 {
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337 }
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338 }
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339
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340 #endif
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341
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342 /**
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343 * @}
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344 */
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345
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346 /**
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347 * @}
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348 */
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349
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350 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/