Brandon Modon Encoder_Nucleo_16_bits
Diff: EncoderMspInitL4.cpp
- Revision:
- 7:cd502aeab71a
- Parent:
- 6:11dea4c204ba
diff -r 11dea4c204ba -r cd502aeab71a EncoderMspInitL4.cpp --- a/EncoderMspInitL4.cpp Fri Oct 14 13:38:48 2016 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,86 +0,0 @@ -#include "mbed.h" -/* - * HAL_TIM_Encoder_MspInit() - * Overrides the __weak function stub in stm32f4xx_hal_tim.h - * - * Edit the below for your preferred pin wiring & pullup/down - * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs. - * Encoder A&B outputs connected directly to GPIOs. - * - * http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00108832.pdf - * Table 15 has GPIOx AFx pinouts - * - * TIM1_CH1: AF1 @ PA8, PE9 - * TIM1_CH2: AF1 @ PA9, PE11 - * - * TIM2_CH1: AF1 @ PA0, PA5, PA15 - * TIM2_CH2: AF1 @ PA1, PB3 - * - * TIM3_CH1: AF2 @ PA6, PB4, PC6, PE3 - * TIM3_CH2: AF2 @ PA7, PB5, PC7, PE4 - * - * TIM4_CH1: AF2 @ PB6, PD12 - * TIM4_CH2: AF2 @ PB7, PD13 - * - * TIM5_CH1: AF2 @ PA0, PF6 - * TIM5_CH2: AF2 @ PA1, PF7 - * - */ - -#ifdef TARGET_STM32L4 -void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim) -{ - GPIO_InitTypeDef GPIO_InitStruct; - - if (htim->Instance == TIM1) { //PA8 PA9 = Nucleo D7 D8 - __TIM1_CLK_ENABLE(); - __GPIOA_CLK_ENABLE(); - GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9; - GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; - GPIO_InitStruct.Pull = GPIO_PULLDOWN; - GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; - GPIO_InitStruct.Alternate = GPIO_AF1_TIM1; - HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); - } - else if (htim->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1 - __TIM2_CLK_ENABLE(); - __GPIOA_CLK_ENABLE(); - GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; - GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; - GPIO_InitStruct.Pull = GPIO_PULLDOWN; - GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; - GPIO_InitStruct.Alternate = GPIO_AF1_TIM2; - HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); - } - else if (htim->Instance == TIM3) { //PB4 PB5 = Nucleo D5 D4 - __TIM3_CLK_ENABLE(); - __GPIOB_CLK_ENABLE(); - GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; - GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; - GPIO_InitStruct.Pull = GPIO_PULLDOWN; - GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; - GPIO_InitStruct.Alternate = GPIO_AF2_TIM3; - HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); - } - else if (htim->Instance == TIM4) { // PB6 PB7 = Nucleo D10 MORPHO_PB7 - __TIM4_CLK_ENABLE(); - __GPIOB_CLK_ENABLE(); - GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7; - GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; - GPIO_InitStruct.Pull = GPIO_PULLDOWN; - GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; - GPIO_InitStruct.Alternate = GPIO_AF2_TIM4; - HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); - } - else if (htim->Instance == TIM5) { // here for completeness, mbed sytem timer uses this - __TIM5_CLK_ENABLE(); - __GPIOA_CLK_ENABLE(); - GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; - GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; - GPIO_InitStruct.Pull = GPIO_PULLDOWN; - GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; - GPIO_InitStruct.Alternate = GPIO_AF2_TIM5; - HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); - } -} -#endif \ No newline at end of file