Progetto STM32 / Mbed 2 deprecated Encoder3

encoder

Dependencies:   mbed

EncoderMspInitF4.cpp@0:5067873a2400, 2017-04-26 (annotated)

Committer:
schille
Date:
Wed Apr 26 08:26:20 2017 +0000
Revision:
0:5067873a2400
mmn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
schille 0:5067873a2400 1 #include "mbed.h"
schille 0:5067873a2400 2 /*
schille 0:5067873a2400 3 * HAL_TIM_Encoder_MspInit()
schille 0:5067873a2400 4 * Overrides the __weak function stub in stm32f4xx_hal_tim.h
schille 0:5067873a2400 5 *
schille 0:5067873a2400 6 * Edit the below for your preferred pin wiring & pullup/down
schille 0:5067873a2400 7 * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs.
schille 0:5067873a2400 8 * Encoder A&B outputs connected directly to GPIOs.
schille 0:5067873a2400 9 *
schille 0:5067873a2400 10 * www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00102166.pdf
schille 0:5067873a2400 11 * www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00141306.pdf
schille 0:5067873a2400 12 *
schille 0:5067873a2400 13 * TIM1_CH1: AF1 @ PA_8, PE_9
schille 0:5067873a2400 14 * TIM1_CH2: AF1 @ PA_9, PE_11
schille 0:5067873a2400 15 *
schille 0:5067873a2400 16 * TIM2_CH1: AF1 @ PA_0, PA_5, PA_15, PB_8* *F446 only
schille 0:5067873a2400 17 * TIM2_CH2: AF1 @ PA_1, PB_3, PB_9* *F446 only
schille 0:5067873a2400 18 *
schille 0:5067873a2400 19 * TIM3_CH1: AF2 @ PA_6, PB_4, PC_6
schille 0:5067873a2400 20 * TIM3_CH2: AF2 @ PA_7, PB_5, PC_7
schille 0:5067873a2400 21 *
schille 0:5067873a2400 22 * TIM4_CH1: AF2 @ PB_6, PD_12
schille 0:5067873a2400 23 * TIM4_CH2: AF2 @ PB_7, PD_13
schille 0:5067873a2400 24 *
schille 0:5067873a2400 25 * TIM5_CH1: AF2 @ PA_0* *TIM5 used by mbed system ticker so unavailable
schille 0:5067873a2400 26 * TIM5_CH2: AF2 @ PA_1*
schille 0:5067873a2400 27 *
schille 0:5067873a2400 28 */
schille 0:5067873a2400 29
schille 0:5067873a2400 30 #ifdef TARGET_STM32F4
schille 0:5067873a2400 31 void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *timer)
schille 0:5067873a2400 32 {
schille 0:5067873a2400 33 GPIO_InitTypeDef GPIO_InitStruct;
schille 0:5067873a2400 34
schille 0:5067873a2400 35 if (timer->Instance == TIM1) { //PA8 PA9 = Nucleo D7 D8
schille 0:5067873a2400 36 __TIM1_CLK_ENABLE();
schille 0:5067873a2400 37 __GPIOA_CLK_ENABLE();
schille 0:5067873a2400 38 GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9;
schille 0:5067873a2400 39 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
schille 0:5067873a2400 40 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
schille 0:5067873a2400 41 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
schille 0:5067873a2400 42 GPIO_InitStruct.Alternate = GPIO_AF1_TIM1;
schille 0:5067873a2400 43 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
schille 0:5067873a2400 44 }
schille 0:5067873a2400 45 else if (timer->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1
schille 0:5067873a2400 46 __TIM2_CLK_ENABLE();
schille 0:5067873a2400 47 __GPIOA_CLK_ENABLE();
schille 0:5067873a2400 48 GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1;
schille 0:5067873a2400 49 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
schille 0:5067873a2400 50 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
schille 0:5067873a2400 51 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
schille 0:5067873a2400 52 GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
schille 0:5067873a2400 53 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
schille 0:5067873a2400 54 }
schille 0:5067873a2400 55 else if (timer->Instance == TIM3) { //PA6 PA7 = Nucleo D12 D11
schille 0:5067873a2400 56 __TIM3_CLK_ENABLE();
schille 0:5067873a2400 57 __GPIOB_CLK_ENABLE();
schille 0:5067873a2400 58 GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7;
schille 0:5067873a2400 59 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
schille 0:5067873a2400 60 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
schille 0:5067873a2400 61 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
schille 0:5067873a2400 62 GPIO_InitStruct.Alternate = GPIO_AF2_TIM3;
schille 0:5067873a2400 63 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
schille 0:5067873a2400 64 }
schille 0:5067873a2400 65 else if (timer->Instance == TIM4) { // PB6 PB7 = Nucleo D10 MORPHO_PB7
schille 0:5067873a2400 66 __TIM4_CLK_ENABLE();
schille 0:5067873a2400 67 __GPIOB_CLK_ENABLE();
schille 0:5067873a2400 68 GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7;
schille 0:5067873a2400 69 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
schille 0:5067873a2400 70 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
schille 0:5067873a2400 71 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
schille 0:5067873a2400 72 GPIO_InitStruct.Alternate = GPIO_AF2_TIM4;
schille 0:5067873a2400 73 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
schille 0:5067873a2400 74 }
schille 0:5067873a2400 75 }
schille 0:5067873a2400 76 #endif