Lucky Yu / Mbed 2 deprecated SOLamr_base_controller

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Dependencies:   mbed

Encoder/EncoderMspInitL1.cpp@0:534dccd9b32a, 2020-05-17 (annotated)

Committer:
spiderkiller
Date:
Sun May 17 07:03:08 2020 +0000
Revision:
0:534dccd9b32a
good;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
spiderkiller 0:534dccd9b32a 1 #include "mbed.h"
spiderkiller 0:534dccd9b32a 2 /*
spiderkiller 0:534dccd9b32a 3 * HAL_TIM_Encoder_MspInit()
spiderkiller 0:534dccd9b32a 4 * Overrides the __weak function stub in stm32l4xx_hal_tim.h
spiderkiller 0:534dccd9b32a 5 *
spiderkiller 0:534dccd9b32a 6 * Edit the below for your preferred pin wiring & pullup/down
spiderkiller 0:534dccd9b32a 7 * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs.
spiderkiller 0:534dccd9b32a 8 * Encoder A&B outputs connected directly to GPIOs.
spiderkiller 0:534dccd9b32a 9 *
spiderkiller 0:534dccd9b32a 10 * http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00098321.pdf
spiderkiller 0:534dccd9b32a 11 * Table 9 has GPIO alternate function pinout mappings.
spiderkiller 0:534dccd9b32a 12 *
spiderkiller 0:534dccd9b32a 13 * TIM2_CH1: AF1 @ PA_0, PA_5, PA_15, PE_9
spiderkiller 0:534dccd9b32a 14 * TIM2_CH2: AF1 @ PA_1, PB_3, PE_10
spiderkiller 0:534dccd9b32a 15 *
spiderkiller 0:534dccd9b32a 16 * TIM3_CH1: AF2 @ PA_6, PB_4, PC_6, PE_3
spiderkiller 0:534dccd9b32a 17 * TIM3_CH2: AF2 @ PA_7, PB_5, PC_7, PE_4
spiderkiller 0:534dccd9b32a 18 *
spiderkiller 0:534dccd9b32a 19 * TIM4_CH1: AF2 @ PB_6, PD_12
spiderkiller 0:534dccd9b32a 20 * TIM4_CH2: AF2 @ PB_7, PD_13
spiderkiller 0:534dccd9b32a 21 *
spiderkiller 0:534dccd9b32a 22 * TIM5_CH1: AF2 @ PA_0* *TIM5 used by mbed system ticker so unavailable
spiderkiller 0:534dccd9b32a 23 * TIM5_CH2: AF2 @ PA_1*
spiderkiller 0:534dccd9b32a 24 *
spiderkiller 0:534dccd9b32a 25 */
spiderkiller 0:534dccd9b32a 26
spiderkiller 0:534dccd9b32a 27 #ifdef TARGET_STM32L1
spiderkiller 0:534dccd9b32a 28 void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim)
spiderkiller 0:534dccd9b32a 29 {
spiderkiller 0:534dccd9b32a 30 GPIO_InitTypeDef GPIO_InitStruct;
spiderkiller 0:534dccd9b32a 31
spiderkiller 0:534dccd9b32a 32 if (htim->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1
spiderkiller 0:534dccd9b32a 33 __TIM2_CLK_ENABLE();
spiderkiller 0:534dccd9b32a 34 __GPIOA_CLK_ENABLE();
spiderkiller 0:534dccd9b32a 35 GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1;
spiderkiller 0:534dccd9b32a 36 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
spiderkiller 0:534dccd9b32a 37 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
spiderkiller 0:534dccd9b32a 38 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
spiderkiller 0:534dccd9b32a 39 GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
spiderkiller 0:534dccd9b32a 40 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
spiderkiller 0:534dccd9b32a 41 }
spiderkiller 0:534dccd9b32a 42 else if (htim->Instance == TIM3) { //PB4 PB5 = Nucleo D5 D4
spiderkiller 0:534dccd9b32a 43 __TIM3_CLK_ENABLE();
spiderkiller 0:534dccd9b32a 44 __GPIOB_CLK_ENABLE();
spiderkiller 0:534dccd9b32a 45 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
spiderkiller 0:534dccd9b32a 46 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
spiderkiller 0:534dccd9b32a 47 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
spiderkiller 0:534dccd9b32a 48 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
spiderkiller 0:534dccd9b32a 49 GPIO_InitStruct.Alternate = GPIO_AF2_TIM3;
spiderkiller 0:534dccd9b32a 50 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
spiderkiller 0:534dccd9b32a 51 }
spiderkiller 0:534dccd9b32a 52 else if (htim->Instance == TIM4) { // PB6 PB7 = Nucleo D10 MORPHO_PB7
spiderkiller 0:534dccd9b32a 53 __TIM4_CLK_ENABLE();
spiderkiller 0:534dccd9b32a 54 __GPIOB_CLK_ENABLE();
spiderkiller 0:534dccd9b32a 55 GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7;
spiderkiller 0:534dccd9b32a 56 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
spiderkiller 0:534dccd9b32a 57 GPIO_InitStruct.Pull = GPIO_PULLDOWN;
spiderkiller 0:534dccd9b32a 58 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
spiderkiller 0:534dccd9b32a 59 GPIO_InitStruct.Alternate = GPIO_AF2_TIM4;
spiderkiller 0:534dccd9b32a 60 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
spiderkiller 0:534dccd9b32a 61 }
spiderkiller 0:534dccd9b32a 62 }
spiderkiller 0:534dccd9b32a 63 #endif