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@dragonlock2
Created Aug 28, 2019
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STM32 Keypad Main Code
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* This notice applies to any and all portions of this file
* that are not between comment pairs USER CODE BEGIN and
* USER CODE END. Other portions of this file, whether
* inserted by the user or by software development tools
* are owned by their respective copyright owners.
*
* Copyright (c) 2018 STMicroelectronics International N.V.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
*
* 1. Redistribution of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of other
* contributors to this software may be used to endorse or promote products
* derived from this software without specific written permission.
* 4. This software, including modifications and/or derivative works of this
* software, must execute solely and exclusively on microcontroller or
* microprocessor devices manufactured by or for STMicroelectronics.
* 5. Redistribution and use of this software other than as permitted under
* this license is void and will automatically terminate your rights under
* this license.
*
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
#include "usb_device.h"
#include "usb_hid_keys.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
struct keyboard_report_t {
uint8_t id;
uint8_t modifier;
uint8_t keys[6];
};
struct mouse_report_t {
uint8_t id;
uint8_t buttons;
int8_t x;
int8_t y;
int8_t wheel;
};
GPIO_TypeDef* swPorts[] = { SW1_GPIO_Port, SW2_GPIO_Port, SW3_GPIO_Port,
SW4_GPIO_Port,
SW5_GPIO_Port, SW6_GPIO_Port, SW7_GPIO_Port, SW8_GPIO_Port,
SW9_GPIO_Port, SW10_GPIO_Port, SW11_GPIO_Port, SW12_GPIO_Port,
SW13_GPIO_Port, SW14_GPIO_Port, SW15_GPIO_Port, SW16_GPIO_Port,
SW17_GPIO_Port, SW18_GPIO_Port, SW19_GPIO_Port, SW20_GPIO_Port,
SW21_GPIO_Port, SW22_GPIO_Port, SW23_GPIO_Port, SW24_GPIO_Port, };
const uint16_t swPins[] = { SW1_Pin, SW2_Pin, SW3_Pin, SW4_Pin,
SW5_Pin, SW6_Pin, SW7_Pin, SW8_Pin,
SW9_Pin, SW10_Pin, SW11_Pin, SW12_Pin,
SW13_Pin, SW14_Pin, SW15_Pin, SW16_Pin,
SW17_Pin, SW18_Pin, SW19_Pin, SW20_Pin,
SW21_Pin, SW22_Pin, SW23_Pin, SW24_Pin, };
int8_t emote;
int8_t pressed;
/* USER CODE END 0 */
/**
* @brief The application entry point.
*
* @retval None
*/
int main(void) {
/* USER CODE BEGIN 1 */
struct mouse_report_t mouseHID;
mouseHID.id = 1;
mouseHID.buttons = 0;
mouseHID.x = 5;
mouseHID.y = 5;
mouseHID.wheel = 0;
struct keyboard_report_t keyboardHID;
keyboardHID.id = 2;
keyboardHID.modifier = 0;
for (int i = 0; i < 6; i++)
keyboardHID.keys[i] = 0;
int8_t ind = 0; //for use for determining key index to write to
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
while (1) {
/* USER CODE BEGIN 3 */
HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin); //see how fast program runs
//reset reports
mouseHID.buttons = 0;
mouseHID.x = 0;
mouseHID.y = 0;
mouseHID.wheel = 0;
keyboardHID.modifier = 0;
for (int8_t i = 0; i < 6; i++)
keyboardHID.keys[i] = 0;
ind = 0;
//special case: emote
if(pressed && HAL_GPIO_ReadPin(swPorts[11], swPins[11])) {
emote++;
emote %= 4;
pressed = 0;
}
//check presses
for (int8_t i = 0; i < 24; i++)
if (!HAL_GPIO_ReadPin(swPorts[i], swPins[i]))
keypresses(i, &keyboardHID, &ind, &mouseHID);
//special case: rapid mouse click
if (!HAL_GPIO_ReadPin(swPorts[17], swPins[17])) {
HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
mouseHID.buttons = 0x01;
USBD_HID_SendReport(&hUsbDeviceFS, &mouseHID, sizeof(struct mouse_report_t));
HAL_Delay(1);
mouseHID.buttons = 0x00;
USBD_HID_SendReport(&hUsbDeviceFS, &mouseHID, sizeof(struct mouse_report_t));
//HAL_Delay(1);
}
USBD_HID_SendReport(&hUsbDeviceFS, &keyboardHID,
sizeof(struct keyboard_report_t));
USBD_HID_SendReport(&hUsbDeviceFS, &mouseHID,
sizeof(struct mouse_report_t));
HAL_Delay(1);
//loop actually takes awhile to complete
}
/* USER CODE END 3 */
}
void keypresses(int8_t sw, struct keyboard_report_t *rep, int8_t *ind,
struct mouse_report_t *mos) {
//write macros and stuff here
//need ind < 6 or overflows, replug to fix
//can send report early if wanna do macros, but make sure to HAL_Delay(1)
//try not to use keys as a mouse clicker. it's weird idk
switch (sw) {
case 0: //1st row
if (*ind < 6)
rep->keys[*ind] = KEY_ESC;
//mos->buttons |= 0x01; //left
break;
case 1:
if (*ind < 6)
rep->keys[*ind] = KEY_1;
//mos->buttons |= 0x02; //right
break;
case 2:
if (*ind < 6)
rep->keys[*ind] = KEY_F1;
//mos->buttons |= 0x04; //middle
break;
case 3:
if (*ind < 6)
rep->keys[*ind] = KEY_2;
break;
case 4:
if (*ind < 6)
rep->keys[*ind] = KEY_3;
break;
case 5:
if (*ind < 6)
rep->keys[*ind] = KEY_O;
break;
case 6: //2nd row
if (*ind < 6)
rep->keys[*ind] = KEY_TAB;
break;
case 7:
if (*ind < 6)
rep->keys[*ind] = KEY_Q;
break;
case 8:
if (*ind < 6)
rep->keys[*ind] = KEY_W;
break;
case 9:
if (*ind < 6)
rep->keys[*ind] = KEY_E;
break;
case 10:
if (*ind < 6)
rep->keys[*ind] = KEY_R;
break;
case 11:
if (*ind < 6)
rep->keys[*ind] = KEY_RIGHT + emote; //iterate thru each arrow
HAL_Delay(25); //debounce so iteration works
pressed = 1;
break;
case 12: //3rd row
//rep->keys[*ind] = KEY_M;
rep->modifier |= KEY_MOD_LSHIFT;
break;
case 13:
if (*ind < 6)
rep->keys[*ind] = KEY_A;
break;
case 14:
if (*ind < 6)
rep->keys[*ind] = KEY_S;
break;
case 15:
if (*ind < 6)
rep->keys[*ind] = KEY_D;
break;
case 16:
if (*ind < 6)
rep->keys[*ind] = KEY_F;
break;
case 17:
//if (*ind < 6)
// rep->keys[*ind] = KEY_G;
(*ind)--;
break;
case 18: //4th row
//rep->keys[*ind] = KEY_S;
rep->modifier |= KEY_MOD_LCTRL;
break;
case 19:
if (*ind < 6)
rep->keys[*ind] = KEY_X;
break;
case 20:
rep->modifier |= KEY_MOD_LALT;
break;
case 21:
if (*ind < 6)
rep->keys[*ind] = KEY_C;
break;
case 22:
if (*ind < 6)
rep->keys[*ind] = KEY_V;
break;
case 23:
if (*ind < 6)
rep->keys[*ind] = KEY_SPACE;
break;
}
(*ind)++; //make sure to -- if not using a normal key
//rep->keys[*ind] = KEY_A;
//(*ind)++;
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void) {
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
_Error_Handler(__FILE__, __LINE__);
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
| RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) {
_Error_Handler(__FILE__, __LINE__);
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
_Error_Handler(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / 1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void) {
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE()
;
__HAL_RCC_GPIOD_CLK_ENABLE()
;
__HAL_RCC_GPIOA_CLK_ENABLE()
;
__HAL_RCC_GPIOB_CLK_ENABLE()
;
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : LED_Pin */
GPIO_InitStruct.Pin = LED_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : SW19_Pin SW20_Pin SW21_Pin SW13_Pin
SW14_Pin SW15_Pin SW7_Pin SW8_Pin
SW11_Pin SW12_Pin SW17_Pin SW16_Pin */
GPIO_InitStruct.Pin = SW19_Pin | SW20_Pin | SW21_Pin | SW13_Pin | SW14_Pin
| SW15_Pin | SW7_Pin | SW8_Pin | SW11_Pin | SW12_Pin | SW17_Pin
| SW16_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLUP;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pins : SW9_Pin SW1_Pin SW3_Pin SW4_Pin
SW5_Pin SW6_Pin SW10_Pin SW18_Pin
SW22_Pin SW23_Pin SW24_Pin SW2_Pin */
GPIO_InitStruct.Pin = SW9_Pin | SW1_Pin | SW3_Pin | SW4_Pin | SW5_Pin
| SW6_Pin | SW10_Pin | SW18_Pin | SW22_Pin | SW23_Pin | SW24_Pin
| SW2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLUP;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param file: The file name as string.
* @param line: The line in file as a number.
* @retval None
*/
void _Error_Handler(char *file, int line) {
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while (1) {
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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