on test and not completed based on nucleo_hello_encoder library
Fork of Nucleo_Hello_Encoder by
Diff: Encoder/CounterMspInitF4.cpp
- Revision:
- 4:26948bebef6c
- Parent:
- 3:5c895f9199d6
diff -r 5c895f9199d6 -r 26948bebef6c Encoder/CounterMspInitF4.cpp --- a/Encoder/CounterMspInitF4.cpp Tue Sep 29 06:56:28 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,69 +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. - * - */ - // STM32 F4 HAL https://github.com/mbedmicro/mbed/blob/03fff9249b0ca5efb2e12506ce8fb3e6cc258d9d/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_tim.h - -#ifdef TARGET_STM32F4 -void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim) -{ - GPIO_InitTypeDef GPIO_InitStruct; - - if (htim->Instance == TIM1) { //PA8 PA9 = Nucleo D7 D8, poss PB0 PB1 usable too (complementary?) - __TIM1_CLK_ENABLE(); - __GPIOA_CLK_ENABLE(); - GPIO_InitStruct.Pin = GPIO_PIN_8;// | GPIO_PIN_9; //test one pin for now without direction - 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, PA5 PB3 = D13 D3 poss too - __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, PA6 PA7 & PC6 PC7 also an option for Nucleo - __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