1 | void TIM2_Init(void)
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2 | {
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3 |
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4 | TIM_SlaveConfigTypeDef sSlaveConfig;
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5 | TIM_MasterConfigTypeDef sMasterConfig;
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6 | TIM_OC_InitTypeDef sConfigOC;
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7 |
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8 | htim2.Instance = TIM2;
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9 | htim2.Init.Prescaler = 0;
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10 | htim2.Init.CounterMode = TIM_COUNTERMODE_CENTERALIGNED3;
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11 | htim2.Init.Period = 500;
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12 | htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
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13 | if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
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14 | {
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15 | Error_Handler();
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16 | }
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17 |
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18 | if (HAL_TIM_PWM_Init(&htim2) != HAL_OK)
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19 | {
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20 | Error_Handler();
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21 | }
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22 |
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23 | sSlaveConfig.SlaveMode = TIM_SLAVEMODE_COMBINED_RESETTRIGGER;
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24 | sSlaveConfig.InputTrigger = TIM_TS_ETRF;
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25 | sSlaveConfig.TriggerPolarity = TIM_TRIGGERPOLARITY_INVERTED;
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26 | sSlaveConfig.TriggerPrescaler = TIM_TRIGGERPRESCALER_DIV1;
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27 | sSlaveConfig.TriggerFilter = 0;
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28 | if (HAL_TIM_SlaveConfigSynchronization(&htim2, &sSlaveConfig) != HAL_OK)
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29 | {
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30 | Error_Handler();
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31 | }
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32 |
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33 | sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
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34 | sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
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35 | if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
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36 | {
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37 | Error_Handler();
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38 | }
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39 |
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40 | if (HAL_TIMEx_RemapConfig(&htim2, TIM_TIM2_ETR_COMP2) != HAL_OK)
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41 | {
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42 | Error_Handler();
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43 | }
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44 |
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45 | sConfigOC.OCMode = TIM_OCMODE_PWM1;
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46 | sConfigOC.Pulse = 240;
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47 | sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
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48 | sConfigOC.OCFastMode = TIM_OCFAST_ENABLE;
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49 | if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
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50 | {
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51 | Error_Handler();
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52 | }
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53 |
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54 | sConfigOC.Pulse = 220;
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55 | if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
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56 | {
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57 | Error_Handler();
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58 | }
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59 |
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60 | sConfigOC.Pulse = 20;
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61 | if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_3) != HAL_OK)
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62 | {
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63 | Error_Handler();
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64 | }
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65 |
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66 | sConfigOC.Pulse = 10;
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67 | if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_4) != HAL_OK)
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68 | {
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69 | Error_Handler();
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70 | }
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71 |
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72 | /**TIM2 GPIO Configuration
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73 | PA0 ------> TIM2_ETR
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74 | */
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75 | GPIO_InitStruct.Pin = GPIO_PIN_0;
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76 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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77 | GPIO_InitStruct.Pull = GPIO_NOPULL;
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78 | GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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79 | GPIO_InitStruct.Alternate = GPIO_AF14_TIM2;
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80 | HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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81 |
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82 | /*
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83 | PA1 ------> TIM2_CH2
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84 | PB10 ------> TIM2_CH3
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85 | PB11 ------> TIM2_CH4
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86 | PA15 ------> TIM2_CH1
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87 | */
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88 | GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_15;
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89 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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90 | GPIO_InitStruct.Pull = GPIO_NOPULL;
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91 | GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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92 | GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
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93 | HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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94 |
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95 | GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
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96 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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97 | GPIO_InitStruct.Pull = GPIO_NOPULL;
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98 | GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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99 | GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
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100 | HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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101 |
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102 | }
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