A program to monitor some parameters for a motor
Dependencies: mbed-dev BufferSerial
EncoderMspInitL1.cpp
00001 #include "mbed.h" 00002 /* 00003 * HAL_TIM_Encoder_MspInit() 00004 * Overrides the __weak function stub in stm32l4xx_hal_tim.h 00005 * 00006 * Edit the below for your preferred pin wiring & pullup/down 00007 * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs. 00008 * Encoder A&B outputs connected directly to GPIOs. 00009 * 00010 * http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00098321.pdf 00011 * Table 9 has GPIO alternate function pinout mappings. 00012 * 00013 * TIM2_CH1: AF1 @ PA_0, PA_5, PA_15, PE_9 00014 * TIM2_CH2: AF1 @ PA_1, PB_3, PE_10 00015 * 00016 * TIM3_CH1: AF2 @ PA_6, PB_4, PC_6, PE_3 00017 * TIM3_CH2: AF2 @ PA_7, PB_5, PC_7, PE_4 00018 * 00019 * TIM4_CH1: AF2 @ PB_6, PD_12 00020 * TIM4_CH2: AF2 @ PB_7, PD_13 00021 * 00022 * TIM5_CH1: AF2 @ PA_0* *TIM5 used by mbed system ticker so unavailable 00023 * TIM5_CH2: AF2 @ PA_1* 00024 * 00025 */ 00026 00027 #ifdef TARGET_STM32L1 00028 void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim) 00029 { 00030 GPIO_InitTypeDef GPIO_InitStruct; 00031 00032 if (htim->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1 00033 __TIM2_CLK_ENABLE(); 00034 __GPIOA_CLK_ENABLE(); 00035 GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; 00036 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00037 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00038 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00039 GPIO_InitStruct.Alternate = GPIO_AF1_TIM2; 00040 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 00041 } 00042 else if (htim->Instance == TIM3) { //PB4 PB5 = Nucleo D5 D4 00043 __TIM3_CLK_ENABLE(); 00044 __GPIOB_CLK_ENABLE(); 00045 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; 00046 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00047 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00048 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00049 GPIO_InitStruct.Alternate = GPIO_AF2_TIM3; 00050 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 00051 } 00052 else if (htim->Instance == TIM4) { // PB6 PB7 = Nucleo D10 MORPHO_PB7 00053 __TIM4_CLK_ENABLE(); 00054 __GPIOB_CLK_ENABLE(); 00055 GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7; 00056 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00057 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00058 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00059 GPIO_InitStruct.Alternate = GPIO_AF2_TIM4; 00060 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 00061 } 00062 } 00063 #endif
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