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Merge pull request #5 from kholia/TIM_ENCODER_EXAMPLE

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feat: hal tim encoder example
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IOsetting 2023-03-03 17:22:09 +08:00 committed by GitHub
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33
Examples/HAL/TIM/TIM_ENCODER/README.md Normal file
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Following `Makefile` changes are needed to run this example:
```diff
diff --git a/Makefile b/Makefile
index 5c24b12..cca49c1 100644
--- a/Makefile
+++ b/Makefile
@@ -38,13 +38,13 @@ PYOCD_EXE ?= pyocd
# py32f003x4, py32f003x6, py32f003x8,
# py32f030x3, py32f030x4, py32f030x6, py32f030x7, py32f030x8
# py32f072xb
-PYOCD_DEVICE ?= py32f030x8
+PYOCD_DEVICE ?= py32f003x6
##### Paths ############
# Link descript file: py32f002x5.ld, py32f003x6.ld, py32f003x8.ld, py32f030x6.ld, py32f030x8.ld
-LDSCRIPT = Libraries/LDScripts/py32f030x8.ld
+LDSCRIPT = Libraries/LDScripts/py32f003x6.ld
# Library build flags:
# PY32F002x5, PY32F002Ax5,
# PY32F003x4, PY32F003x6, PY32F003x8,
@@ -61,7 +61,7 @@ CFILES :=
# ASM source folders
ADIRS := User
# ASM single files
-AFILES := Libraries/CMSIS/Device/PY32F0xx/Source/gcc/startup_py32f030.s
+AFILES := Libraries/CMSIS/Device/PY32F0xx/Source/gcc/startup_py32f003.s
# Include paths
INCLUDES := Libraries/CMSIS/Core/Include \
```

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Examples/HAL/TIM/TIM_ENCODER/encoder.c Normal file
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#include "encoder.h"
TIM_HandleTypeDef htim3;
static uint16_t newCount;
static uint16_t prevCount;
void Encoder_Init(void) {
HAL_TIM_Encoder_Start(&htim3, TIM_CHANNEL_ALL);
}
uint16_t Encoder_Read() {
uint16_t val = __HAL_TIM_GET_COUNTER(&htim3);
return val >> 1;
}
Encoder_Status Encoder_Get_Status() {
newCount = Encoder_Read();
if (newCount != prevCount) {
if (newCount > prevCount) {
prevCount = newCount;
return Incremented;
} else {
prevCount = newCount;
return Decremented;
}
}
return Neutral;
}
/**
* @brief TIM3 Initialization Function (Encoder Mode)
* @param None
* @retval None
*/
void Encoder_Config(void)
{
TIM_Encoder_InitTypeDef sConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
htim3.Instance = TIM3;
htim3.Init.Prescaler = 0;
htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
htim3.Init.Period = 65535;
htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
sConfig.EncoderMode = TIM_ENCODERMODE_TI1;
sConfig.IC1Polarity = TIM_ICPOLARITY_RISING;
sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI;
sConfig.IC1Prescaler = TIM_ICPSC_DIV1; // Capture performed each time an edge is detected on the capture input
sConfig.IC1Filter = 0;
sConfig.IC2Polarity = TIM_ICPOLARITY_RISING;
sConfig.IC2Selection = TIM_ICSELECTION_DIRECTTI;
sConfig.IC2Prescaler = TIM_ICPSC_DIV1; // Capture performed each time an edge is detected on the capture input
sConfig.IC2Filter = 0;
HAL_TIM_Encoder_Init(&htim3, &sConfig);
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig);
}

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Examples/HAL/TIM/TIM_ENCODER/encoder.h Normal file
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#ifndef __ENCODER_H
#define __ENCODER_H
#include <stdint.h>
#include <stdbool.h>
#include "py32f0xx_hal_def.h"
#include "py32f0xx_hal_conf.h"
#ifndef ENCODER_TIM
#define ENCODER_TIM htim3
#endif
#ifndef ENCODER_GPIO_PORT
#define ENCODER_GPIO_PORT GPIOA
#endif
#ifndef ENCODER_GPIO_CH1
#define ENCODER_GPIO_CH1 GPIO_PIN_6
#endif
#ifndef ENCODER_GPIO_CH2
#define ENCODER_GPIO_CH2 GPIO_PIN_7
#endif
extern TIM_HandleTypeDef htim3;
typedef enum {
Incremented = 1,
Decremented = -1,
Neutral = 0,
} Encoder_Status;
void Encoder_Config(void);
void Encoder_Init(void);
uint16_t Encoder_Read();
Encoder_Status Encoder_Get_Status();
#endif

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Examples/HAL/TIM/TIM_ENCODER/main.c Normal file
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// This example was tested with 'PY32F003W16S6TU SOP16' chip
#include "py32f0xx_hal_dma.h"
#include "py32f0xx_bsp_printf.h"
// https://github.com/scottc11/stm32-encoder
#include "encoder.h"
void APP_ErrorHandler(void);
Encoder_Status encoderStatus;
int main(void)
{
HAL_Init();
BSP_USART_Config();
printf("SystemClk:%ld\r\n", SystemCoreClock);
Encoder_Config(); // configure the encoder's timer
Encoder_Init(); // start the encoder's timer
while(1) {
encoderStatus = Encoder_Get_Status();
switch(encoderStatus) {
case Incremented:
printf("Incremented\n");
break;
case Decremented:
printf("Decremented\n");
break;
case Neutral:
break;
}
}
}
void APP_ErrorHandler(void)
{
while (1);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Export assert error source and line number
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
while (1);
}
#endif /* USE_FULL_ASSERT */

229
Examples/HAL/TIM/TIM_ENCODER/py32f0xx_hal_conf.h Normal file
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/**
******************************************************************************
* @file py32f0xx_hal_conf.h
* @author MCU Application Team
* @brief HAL configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __PY32F0xx_HAL_CONF_H
#define __PY32F0xx_HAL_CONF_H
#ifdef __cplusplus
extern "C" {
#endif
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* ########################## Module Selection ############################## */
/**
* @brief This is the list of modules to be used in the HAL driver
*/
#define HAL_MODULE_ENABLED
#define HAL_RCC_MODULE_ENABLED
/* #define HAL_ADC_MODULE_ENABLED */
/* #define HAL_CRC_MODULE_ENABLED */
/* #define HAL_COMP_MODULE_ENABLED */
#define HAL_FLASH_MODULE_ENABLED
#define HAL_GPIO_MODULE_ENABLED
/* #define HAL_IWDG_MODULE_ENABLED */
/* #define HAL_WWDG_MODULE_ENABLED */
#define HAL_TIM_MODULE_ENABLED
#define HAL_DMA_MODULE_ENABLED
/* #define HAL_LPTIM_MODULE_ENABLED */
#define HAL_PWR_MODULE_ENABLED
// #define HAL_I2C_MODULE_ENABLED
#define HAL_UART_MODULE_ENABLED
/* #define HAL_SPI_MODULE_ENABLED */
/* #define HAL_RTC_MODULE_ENABLED */
/* #define HAL_LED_MODULE_ENABLED */
/* #define HAL_EXTI_MODULE_ENABLED */
#define HAL_CORTEX_MODULE_ENABLED
/* ########################## Oscillator Values adaptation ####################*/
#if !defined (HSI_VALUE)
#define HSI_VALUE ((uint32_t)8000000) /*!< Value of the Internal oscillator in Hz */
#endif /* HSI_VALUE */
/**
* @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
* This value is used by the RCC HAL module to compute the system frequency
*/
#if !defined (HSE_VALUE)
#define HSE_VALUE ((uint32_t)24000000) /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */
#if !defined (HSE_STARTUP_TIMEOUT)
#define HSE_STARTUP_TIMEOUT ((uint32_t)200) /*!< Time out for HSE start up, in ms */
#endif /* HSE_STARTUP_TIMEOUT */
/**
* @brief Internal Low Speed Internal oscillator (LSI) value.
*/
#if !defined (LSI_VALUE)
#define LSI_VALUE ((uint32_t)32768) /*!< LSI Typical Value in Hz */
#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
The real value may vary depending on the variations
in voltage and temperature. */
/**
* @brief Adjust the value of External Low Speed oscillator (LSE) used in your application.
* This value is used by the RCC HAL module to compute the system frequency
*/
#if !defined (LSE_VALUE)
#define LSE_VALUE ((uint32_t)32768) /*!< Value of the External oscillator in Hz*/
#endif /* LSE_VALUE */
#if !defined (LSE_STARTUP_TIMEOUT)
#define LSE_STARTUP_TIMEOUT ((uint32_t)5000) /*!< Time out for LSE start up, in ms */
#endif /* LSE_STARTUP_TIMEOUT */
/* Tip: To avoid modifying this file each time you need to use different HSE,
=== you can define the HSE value in your toolchain compiler preprocessor. */
/* ########################### System Configuration ######################### */
/**
* @brief This is the HAL system configuration section
*/
#define VDD_VALUE ((uint32_t)3300) /*!< Value of VDD in mv */
#define PRIORITY_HIGHEST 0
#define PRIORITY_HIGH 1
#define PRIORITY_LOW 2
#define PRIORITY_LOWEST 3
#define TICK_INT_PRIORITY ((uint32_t)PRIORITY_LOWEST) /*!< tick interrupt priority (lowest by default) */
#define USE_RTOS 0
#define PREFETCH_ENABLE 0
/* ########################## Assert Selection ############################## */
/**
* @brief Uncomment the line below to expanse the "assert_param" macro in the
* HAL drivers code
*/
/* #define USE_FULL_ASSERT 1U */
/* Includes ------------------------------------------------------------------*/
/**
* @brief Include module's header file
*/
#ifdef HAL_MODULE_ENABLED
#include "py32f0xx_hal.h"
#endif /* HAL_MODULE_ENABLED */
#ifdef HAL_RCC_MODULE_ENABLED
#include "py32f0xx_hal_rcc.h"
#endif /* HAL_RCC_MODULE_ENABLED */
#ifdef HAL_EXTI_MODULE_ENABLED
#include "py32f0xx_hal_exti.h"
#endif /* HAL_EXTI_MODULE_ENABLED */
#ifdef HAL_GPIO_MODULE_ENABLED
#include "py32f0xx_hal_gpio.h"
#endif /* HAL_GPIO_MODULE_ENABLED */
#ifdef HAL_CORTEX_MODULE_ENABLED
#include "py32f0xx_hal_cortex.h"
#endif /* HAL_CORTEX_MODULE_ENABLED */
#ifdef HAL_DMA_MODULE_ENABLED
#include "py32f0xx_hal_dma.h"
#endif /* HAL_DMA_MODULE_ENABLED */
#ifdef HAL_ADC_MODULE_ENABLED
#include "py32f0xx_hal_adc.h"
#endif /* HAL_ADC_MODULE_ENABLED */
#ifdef HAL_CRC_MODULE_ENABLED
#include "py32f0xx_hal_crc.h"
#endif /* HAL_CRC_MODULE_ENABLED */
#ifdef HAL_COMP_MODULE_ENABLED
#include "py32f0xx_hal_comp.h"
#endif /* HAL_COMP_MODULE_ENABLED */
#ifdef HAL_FLASH_MODULE_ENABLED
#include "py32f0xx_hal_flash.h"
#endif /* HAL_FLASH_MODULE_ENABLED */
#ifdef HAL_I2C_MODULE_ENABLED
#include "py32f0xx_hal_i2c.h"
#endif /* HAL_I2C_MODULE_ENABLED */
#ifdef HAL_IWDG_MODULE_ENABLED
#include "py32f0xx_hal_iwdg.h"
#endif /* HAL_IWDG_MODULE_ENABLED */
#ifdef HAL_PWR_MODULE_ENABLED
#include "py32f0xx_hal_pwr.h"
#endif /* HAL_PWR_MODULE_ENABLED */
#ifdef HAL_RTC_MODULE_ENABLED
#include "py32f0xx_hal_rtc.h"
#endif /* HAL_RTC_MODULE_ENABLED */
#ifdef HAL_SPI_MODULE_ENABLED
#include "py32f0xx_hal_spi.h"
#endif /* HAL_SPI_MODULE_ENABLED */
#ifdef HAL_TIM_MODULE_ENABLED
#include "py32f0xx_hal_tim.h"
#endif /* HAL_TIM_MODULE_ENABLED */
#ifdef HAL_LPTIM_MODULE_ENABLED
#include "py32f0xx_hal_lptim.h"
#endif /* HAL_LPTIM_MODULE_ENABLED */
#ifdef HAL_UART_MODULE_ENABLED
#include "py32f0xx_hal_uart.h"
#endif /* HAL_UART_MODULE_ENABLED */
#ifdef HAL_WWDG_MODULE_ENABLED
#include "py32f0xx_hal_wwdg.h"
#endif /* HAL_WWDG_MODULE_ENABLED */
#ifdef HAL_USART_MODULE_ENABLED
#include "py32f0xx_hal_usart.h"
#endif /* HAL_USART_MODULE_ENABLED */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
#ifdef __cplusplus
}
#endif
#endif /* __PY32F0xx_HAL_CONF_H */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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Examples/HAL/TIM/TIM_ENCODER/py32f0xx_hal_msp.c Normal file
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/**
******************************************************************************
* @file py32f0xx_hal_msp.c
* @author MCU Application Team
* @brief This file provides code for the MSP Initialization
* and de-Initialization codes.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include <stdlib.h>
#include "py32f0xx_hal.h"
#include "encoder.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* External functions --------------------------------------------------------*/
/**
* @brief Configure the Flash prefetch and the Instruction cache,
* the time base source, NVIC and any required global low level hardware
* by calling the HAL_MspInit() callback function from HAL_Init()
*
*/
void HAL_MspInit(void)
{
}
/**
* @brief TIM_Encoder MSP Initialization
* This function configures the hardware resources used in this example
* @param htim_encoder: TIM_Encoder handle pointer
* @retval None
*/
void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef* htim_encoder)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(htim_encoder->Instance==TIM3)
{
__HAL_RCC_TIM3_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitStruct.Pin = ENCODER_GPIO_CH1|ENCODER_GPIO_CH2;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Alternate = GPIO_AF1_TIM3;
HAL_GPIO_Init(ENCODER_GPIO_PORT, &GPIO_InitStruct);
}
}
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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Examples/HAL/TIM/TIM_ENCODER/py32f0xx_it.c Normal file
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/**
******************************************************************************
* @file py32f0xx_it.c
* @author MCU Application Team
* @brief Interrupt Service Routines.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "py32f0xx_hal.h"
#include "py32f0xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private user code ---------------------------------------------------------*/
/* External variables --------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M0+ Processor Interruption and Exception Handlers */
/******************************************************************************/
/**
* @brief This function handles Non maskable interrupt.
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard fault interrupt.
*/
void HardFault_Handler(void)
{
while (1)
{
}
}
/**
* @brief This function handles System service call via SWI instruction.
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Pendable request for system service.
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
HAL_IncTick();
}
/******************************************************************************/
/* PY32F0xx Peripheral Interrupt Handlers */
/* Add here the Interrupt Handlers for the used peripherals. */
/* For the available peripheral interrupt handler names, */
/* please refer to the startup file. */
/******************************************************************************/
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/

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Examples/HAL/TIM/TIM_ENCODER/py32f0xx_it.h Normal file
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/**
******************************************************************************
* @file py32f0xx_it.h
* @author MCU Application Team
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) Puya Semiconductor Co.
* All rights reserved.</center></h2>
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __PY32F0XX_IT_H
#define __PY32F0XX_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Private includes ----------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions prototypes ---------------------------------------------*/
void NMI_Handler(void);
void HardFault_Handler(void);
void SVC_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __PY32F0XX_IT_H */
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/