A program to monitor some parameters for a motor
Dependencies: mbed-dev BufferSerial
EncoderMspInitF3.cpp
00001 #include "mbed.h" 00002 /* 00003 * HAL_TIM_Encoder_MspInit() 00004 * Overrides the __weak function stub in stm32f3xx_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/DM00093333.pdf 00011 * http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf 00012 * http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00133117.pdf 00013 * Table 14 has GPIO alternate function pinout mappings. 00014 * 00015 * TIM1_CH1: AF2 @ PC_0, PE_9; AF6 @ PA_8 00016 * TIM1_CH2: AF2 @ PC_1, PE_11; AF6 @ PA_9 00017 * 00018 * (TIM2_CH1: AF1 @ PA_0, PA_5, PA_15; AF2 @ PD_3) TIM2 is the mbed system ticker, so unavailable as encoder. 00019 * (TIM2_CH2: AF1 @ PA_1, PB_3; AF2 @ PD_4) 00020 * 00021 * TIM3_CH1: AF2 @ PA_6, PB_4, PC_6, PE_2 not for F302R8, OK @ F334R8 00022 * TIM3_CH2: AF2 @ PA_4, PA_7, PB_5, PC_7, PE_3 00023 * 00024 * TIM4_CH1: AF2 @ PB_6, PD_12; AF10 @ PA_11 not for both F302R8 & F334R8 00025 * TIM4_CH2: AF2 @ PB_7, PD_13; AF10 @ PA_12 00026 * 00027 */ 00028 00029 #ifdef TARGET_STM32F3 00030 00031 void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim) 00032 { 00033 GPIO_InitTypeDef GPIO_InitStruct; 00034 00035 if (htim->Instance == TIM1) { //PA8 PA9 = Nucleo D7 D8 00036 __TIM1_CLK_ENABLE(); 00037 __GPIOA_CLK_ENABLE(); 00038 GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9; 00039 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00040 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00041 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00042 GPIO_InitStruct.Alternate = GPIO_AF6_TIM1; 00043 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 00044 } 00045 #if 0 //TIM2 is the mbed system ticker 00046 else if (htim->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1 00047 __TIM2_CLK_ENABLE(); 00048 __GPIOA_CLK_ENABLE(); 00049 GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; 00050 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00051 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00052 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00053 GPIO_InitStruct.Alternate = GPIO_AF1_TIM2; 00054 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 00055 } 00056 #endif 00057 #if defined TARGET_STM32F334R8 00058 else if (htim->Instance == TIM3) { //PB4 PB5 = Nucleo D5 D4 00059 __TIM3_CLK_ENABLE(); 00060 __GPIOB_CLK_ENABLE(); 00061 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; 00062 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00063 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00064 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00065 GPIO_InitStruct.Alternate = GPIO_AF2_TIM3; 00066 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 00067 } 00068 #endif 00069 #if 0 00070 else if (htim->Instance == TIM4) { // PB6 PB7 = Nucleo D10 MORPHO_PB7 00071 __TIM4_CLK_ENABLE(); 00072 __GPIOB_CLK_ENABLE(); 00073 GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7; 00074 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; 00075 GPIO_InitStruct.Pull = GPIO_PULLDOWN; 00076 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; 00077 GPIO_InitStruct.Alternate = GPIO_AF2_TIM4; 00078 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 00079 } 00080 #endif 00081 } 00082 #endif
Generated on Tue Jul 12 2022 17:32:26 by 1.7.2