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EncoderMspInitF7.cpp@7:d7c793ec5c04, 2019-01-25 (annotated)

Committer:
irfantitok
Date:
Fri Jan 25 16:51:33 2019 +0000
Revision:
7:d7c793ec5c04
Parent:
6:978bd0579f1b 
Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
calmantara186 5:a3349f37ef99 1 #include "mbed.h"
calmantara186 5:a3349f37ef99 2 /*
calmantara186 5:a3349f37ef99 3 * HAL_TIM_Encoder_MspInit()
calmantara186 5:a3349f37ef99 4 * Overrides the __weak function stub in stm32f4xx_hal_tim.h
calmantara186 5:a3349f37ef99 5 *
calmantara186 5:a3349f37ef99 6 * Edit the below for your preferred pin wiring & pullup/down
calmantara186 5:a3349f37ef99 7 * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs.
calmantara186 5:a3349f37ef99 8 * Encoder A&B outputs connected directly to GPIOs.
calmantara186 5:a3349f37ef99 9 *
calmantara186 5:a3349f37ef99 10 * www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00102166.pdf
calmantara186 5:a3349f37ef99 11 * www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00141306.pdf
calmantara186 5:a3349f37ef99 12 *
calmantara186 5:a3349f37ef99 13 * TIM1_CH1: AF1 @ PA_8, PE_9
calmantara186 5:a3349f37ef99 14 * TIM1_CH2: AF1 @ PA_9, PE_11
calmantara186 5:a3349f37ef99 15 *
calmantara186 5:a3349f37ef99 16 * TIM2_CH1: AF1 @ PA_0, PA_5, PA_15, PB_8* *F446 only
calmantara186 5:a3349f37ef99 17 * TIM2_CH2: AF1 @ PA_1, PB_3, PB_9* *F446 only
calmantara186 5:a3349f37ef99 18 *
calmantara186 5:a3349f37ef99 19 * TIM3_CH1: AF2 @ PA_6, PB_4, PC_6
calmantara186 5:a3349f37ef99 20 * TIM3_CH2: AF2 @ PA_7, PB_5, PC_7
calmantara186 5:a3349f37ef99 21 *
calmantara186 5:a3349f37ef99 22 * TIM4_CH1: AF2 @ PB_6, PD_12
calmantara186 5:a3349f37ef99 23 * TIM4_CH2: AF2 @ PB_7, PD_13
calmantara186 5:a3349f37ef99 24 *
calmantara186 5:a3349f37ef99 25 * TIM5_CH1: AF2 @ PA_0* *TIM5 used by mbed system ticker so unavailable
calmantara186 5:a3349f37ef99 26 * TIM5_CH2: AF2 @ PA_1*
calmantara186 5:a3349f37ef99 27 *
calmantara186 5:a3349f37ef99 28 */
calmantara186 5:a3349f37ef99 29
calmantara186 5:a3349f37ef99 30 #ifdef TARGET_STM32F7
calmantara186 5:a3349f37ef99 31 void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim)
calmantara186 5:a3349f37ef99 32 {
calmantara186 5:a3349f37ef99 33 GPIO_InitTypeDef GPIO_InitStruct;
calmantara186 5:a3349f37ef99 34
calmantara186 5:a3349f37ef99 35 if (htim->Instance == TIM1) { //PE_9 PE_11
calmantara186 5:a3349f37ef99 36 __TIM1_CLK_ENABLE();
calmantara186 5:a3349f37ef99 37 __GPIOE_CLK_ENABLE();
calmantara186 5:a3349f37ef99 38 GPIO_InitStruct.Pin = GPIO_PIN_9 | GPIO_PIN_11;
calmantara186 5:a3349f37ef99 39 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
calmantara186 5:a3349f37ef99 40 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
calmantara186 5:a3349f37ef99 41 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
calmantara186 5:a3349f37ef99 42 GPIO_InitStruct.Alternate = GPIO_AF1_TIM1;
irfantitok 6:978bd0579f1b 43 HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
calmantara186 5:a3349f37ef99 44 }
irfantitok 7:d7c793ec5c04 45
irfantitok 6:978bd0579f1b 46 else if (htim->Instance == TIM2) { //PA_15 PB_3
calmantara186 5:a3349f37ef99 47 __TIM2_CLK_ENABLE();
calmantara186 5:a3349f37ef99 48 __GPIOA_CLK_ENABLE();
irfantitok 6:978bd0579f1b 49 __GPIOB_CLK_ENABLE();
irfantitok 6:978bd0579f1b 50 GPIO_InitStruct.Pin = GPIO_PIN_15;
calmantara186 5:a3349f37ef99 51 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
calmantara186 5:a3349f37ef99 52 GPIO_InitStruct.Pull = GPIO_NOPULL;
calmantara186 5:a3349f37ef99 53 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
calmantara186 5:a3349f37ef99 54 GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
calmantara186 5:a3349f37ef99 55 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
irfantitok 6:978bd0579f1b 56
irfantitok 6:978bd0579f1b 57 GPIO_InitStruct.Pin = GPIO_PIN_3;
irfantitok 6:978bd0579f1b 58 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
irfantitok 6:978bd0579f1b 59 GPIO_InitStruct.Pull = GPIO_NOPULL;
irfantitok 6:978bd0579f1b 60 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
irfantitok 6:978bd0579f1b 61 GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
irfantitok 6:978bd0579f1b 62 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
calmantara186 5:a3349f37ef99 63 }
calmantara186 5:a3349f37ef99 64 else if (htim->Instance == TIM3) { //PB_4 PB_5
calmantara186 5:a3349f37ef99 65 __TIM3_CLK_ENABLE();
calmantara186 5:a3349f37ef99 66 __GPIOB_CLK_ENABLE();
calmantara186 5:a3349f37ef99 67 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
calmantara186 5:a3349f37ef99 68 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
calmantara186 5:a3349f37ef99 69 GPIO_InitStruct.Pull = GPIO_NOPULL;
calmantara186 5:a3349f37ef99 70 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
calmantara186 5:a3349f37ef99 71 GPIO_InitStruct.Alternate = GPIO_AF2_TIM3;
calmantara186 5:a3349f37ef99 72 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
calmantara186 5:a3349f37ef99 73 }
calmantara186 5:a3349f37ef99 74 else if (htim->Instance == TIM4) { // PD_12 PD_13
calmantara186 5:a3349f37ef99 75 __TIM4_CLK_ENABLE();
calmantara186 5:a3349f37ef99 76 __GPIOD_CLK_ENABLE();
calmantara186 5:a3349f37ef99 77 GPIO_InitStruct.Pin = GPIO_PIN_12 | GPIO_PIN_13;
calmantara186 5:a3349f37ef99 78 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
calmantara186 5:a3349f37ef99 79 GPIO_InitStruct.Pull = GPIO_NOPULL;
calmantara186 5:a3349f37ef99 80 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
calmantara186 5:a3349f37ef99 81 GPIO_InitStruct.Alternate = GPIO_AF2_TIM4;
irfantitok 6:978bd0579f1b 82 HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
calmantara186 5:a3349f37ef99 83 }
calmantara186 5:a3349f37ef99 84
calmantara186 5:a3349f37ef99 85 else if (htim->Instance == TIM8) { // PC_6 PC_7
calmantara186 5:a3349f37ef99 86 __TIM8_CLK_ENABLE();
calmantara186 5:a3349f37ef99 87 __GPIOC_CLK_ENABLE();
calmantara186 5:a3349f37ef99 88 GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7;
calmantara186 5:a3349f37ef99 89 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
calmantara186 5:a3349f37ef99 90 GPIO_InitStruct.Pull = GPIO_NOPULL;
calmantara186 5:a3349f37ef99 91 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
calmantara186 5:a3349f37ef99 92 GPIO_InitStruct.Alternate = GPIO_AF3_TIM8;
calmantara186 5:a3349f37ef99 93 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
irfantitok 7:d7c793ec5c04 94 }
calmantara186 5:a3349f37ef99 95 }
calmantara186 5:a3349f37ef99 96 #endif