on test and not completed based on nucleo_hello_encoder library
Fork of Nucleo_Hello_Encoder by
Encoder/CounterMspInitF4.cpp@2:70f92ce7d983, 2015-09-29 (annotated)
- Committer:
- c128
- Date:
- Tue Sep 29 06:50:08 2015 +0000
- Revision:
- 2:70f92ce7d983
- Parent:
- 1:3d2fffa6e19f
UPDATE
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
gregeric | 0:ee5cb967aa17 | 1 | #include "mbed.h" |
gregeric | 0:ee5cb967aa17 | 2 | /* |
gregeric | 0:ee5cb967aa17 | 3 | * HAL_TIM_Encoder_MspInit() |
gregeric | 0:ee5cb967aa17 | 4 | * Overrides the __weak function stub in stm32f4xx_hal_tim.h |
gregeric | 0:ee5cb967aa17 | 5 | * |
gregeric | 0:ee5cb967aa17 | 6 | * Edit the below for your preferred pin wiring & pullup/down |
gregeric | 0:ee5cb967aa17 | 7 | * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs. |
gregeric | 0:ee5cb967aa17 | 8 | * Encoder A&B outputs connected directly to GPIOs. |
gregeric | 0:ee5cb967aa17 | 9 | * |
gregeric | 0:ee5cb967aa17 | 10 | */ |
c128 | 2:70f92ce7d983 | 11 | // STM32 F4 HAL https://github.com/mbedmicro/mbed/blob/03fff9249b0ca5efb2e12506ce8fb3e6cc258d9d/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_tim.h |
gregeric | 0:ee5cb967aa17 | 12 | |
gregeric | 0:ee5cb967aa17 | 13 | #ifdef TARGET_STM32F4 |
gregeric | 0:ee5cb967aa17 | 14 | void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim) |
gregeric | 0:ee5cb967aa17 | 15 | { |
gregeric | 0:ee5cb967aa17 | 16 | GPIO_InitTypeDef GPIO_InitStruct; |
gregeric | 0:ee5cb967aa17 | 17 | |
gregeric | 0:ee5cb967aa17 | 18 | if (htim->Instance == TIM1) { //PA8 PA9 = Nucleo D7 D8, poss PB0 PB1 usable too (complementary?) |
gregeric | 0:ee5cb967aa17 | 19 | __TIM1_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 20 | __GPIOA_CLK_ENABLE(); |
c128 | 2:70f92ce7d983 | 21 | GPIO_InitStruct.Pin = GPIO_PIN_8;// | GPIO_PIN_9; //test one pin for now without direction |
gregeric | 0:ee5cb967aa17 | 22 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
gregeric | 0:ee5cb967aa17 | 23 | GPIO_InitStruct.Pull = GPIO_PULLDOWN; |
gregeric | 0:ee5cb967aa17 | 24 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
gregeric | 0:ee5cb967aa17 | 25 | GPIO_InitStruct.Alternate = GPIO_AF1_TIM1; |
gregeric | 0:ee5cb967aa17 | 26 | HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); |
gregeric | 0:ee5cb967aa17 | 27 | } |
gregeric | 0:ee5cb967aa17 | 28 | else if (htim->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1, PA5 PB3 = D13 D3 poss too |
gregeric | 0:ee5cb967aa17 | 29 | __TIM2_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 30 | __GPIOA_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 31 | GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; |
gregeric | 0:ee5cb967aa17 | 32 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
gregeric | 0:ee5cb967aa17 | 33 | GPIO_InitStruct.Pull = GPIO_PULLDOWN; |
gregeric | 0:ee5cb967aa17 | 34 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
gregeric | 0:ee5cb967aa17 | 35 | GPIO_InitStruct.Alternate = GPIO_AF1_TIM2; |
gregeric | 0:ee5cb967aa17 | 36 | HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); |
gregeric | 0:ee5cb967aa17 | 37 | } |
gregeric | 0:ee5cb967aa17 | 38 | else if (htim->Instance == TIM3) { //PB4 PB5 = Nucleo D5 D4, PA6 PA7 & PC6 PC7 also an option for Nucleo |
gregeric | 0:ee5cb967aa17 | 39 | __TIM3_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 40 | __GPIOB_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 41 | GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; |
gregeric | 0:ee5cb967aa17 | 42 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
gregeric | 0:ee5cb967aa17 | 43 | GPIO_InitStruct.Pull = GPIO_PULLDOWN; |
gregeric | 0:ee5cb967aa17 | 44 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
gregeric | 0:ee5cb967aa17 | 45 | GPIO_InitStruct.Alternate = GPIO_AF2_TIM3; |
gregeric | 0:ee5cb967aa17 | 46 | HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); |
gregeric | 0:ee5cb967aa17 | 47 | } |
gregeric | 0:ee5cb967aa17 | 48 | else if (htim->Instance == TIM4) { // PB6 PB7 = Nucleo D10 MORPHO_PB7 |
gregeric | 0:ee5cb967aa17 | 49 | __TIM4_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 50 | __GPIOB_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 51 | GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7; |
gregeric | 0:ee5cb967aa17 | 52 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
gregeric | 0:ee5cb967aa17 | 53 | GPIO_InitStruct.Pull = GPIO_PULLDOWN; |
gregeric | 0:ee5cb967aa17 | 54 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
gregeric | 0:ee5cb967aa17 | 55 | GPIO_InitStruct.Alternate = GPIO_AF2_TIM4; |
gregeric | 0:ee5cb967aa17 | 56 | HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); |
gregeric | 0:ee5cb967aa17 | 57 | } |
gregeric | 0:ee5cb967aa17 | 58 | else if (htim->Instance == TIM5) { // here for completeness, mbed sytem timer uses this |
gregeric | 0:ee5cb967aa17 | 59 | __TIM5_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 60 | __GPIOA_CLK_ENABLE(); |
gregeric | 0:ee5cb967aa17 | 61 | GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; |
gregeric | 0:ee5cb967aa17 | 62 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
gregeric | 0:ee5cb967aa17 | 63 | GPIO_InitStruct.Pull = GPIO_PULLDOWN; |
gregeric | 0:ee5cb967aa17 | 64 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
gregeric | 0:ee5cb967aa17 | 65 | GPIO_InitStruct.Alternate = GPIO_AF2_TIM5; |
gregeric | 0:ee5cb967aa17 | 66 | HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); |
gregeric | 0:ee5cb967aa17 | 67 | } |
gregeric | 0:ee5cb967aa17 | 68 | } |
gregeric | 0:ee5cb967aa17 | 69 | #endif |