stm32f103 Bluepill usb keyboard demo cmake project (it worked!)
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/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
*
* COPYRIGHT(c) 2016 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions 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 its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 ------------------------------------------------------------------*/
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#include <usbd_hid.h>
#include <stdbool.h>
#include <keyboard.h>
#include <circbuf.h>
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#include "stm32f1xx_hal.h"
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#include "usart.h"
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#include "usb_device.h"
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#include "gpio.h"
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/* 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);
void Error_Handler(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
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CircBuf *key_cbuf;
void fkey_press(uint8_t key) {
KeyEvent ke = {key, true};
cbuf_append(key_cbuf, &ke);
}
void fkey_release(uint8_t key) {
KeyEvent ke = {key, false};
cbuf_append(key_cbuf, &ke);
}
void fkey_type(uint8_t key, bool shift) {
if(shift) fkey_press(KEY_LEFTSHIFT);
fkey_press(key);
fkey_release(key);
if(shift) fkey_release(KEY_LEFTSHIFT);
}
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/** Print a debug message */
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void dbg(const char *msg) {
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HAL_UART_Transmit(&huart2, (char *) msg, (uint16_t) strlen(msg), 10);
}
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
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UNUSED(GPIO_Pin);
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static uint32_t lasttick = 0;
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dbg("EXTI!\r\n");
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if (HAL_GetTick() - lasttick < 1000) {
dbg("Discard, too soon\r\n");
return;
}
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dbg("HEYOOO\r\n");
fkey_type(KEY_H, true);
fkey_type(KEY_E, false);
fkey_type(KEY_L, false);
fkey_type(KEY_L, false);
fkey_type(KEY_O, false);
fkey_type(KEY_SPACE, false);
fkey_type(KEY_W, true);
fkey_type(KEY_O, false);
fkey_type(KEY_R, false);
fkey_type(KEY_L, false);
fkey_type(KEY_D, false);
fkey_type(KEY_ENTER, false);
}
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/* USER CODE END 0 */
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int main(void) {
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/* USER CODE BEGIN 1 */
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kybd_clear();
key_cbuf = cbuf_create(100, sizeof(KeyEvent));
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/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART2_UART_Init();
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
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#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-noreturn"
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dbg("-- READY! --\r\n\r\n");
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char msg[] = "A\r\n";
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while (1) {
/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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HAL_Delay(500);
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HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
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dbg(msg);
// Toggle
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if (msg[0] == 'A') {
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msg[0] = 'B';
} else {
msg[0] = 'A';
}
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}
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#pragma clang diagnostic pop
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/* USER CODE END 3 */
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}
/** System Clock Configuration
*/
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void SystemClock_Config(void) {
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RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
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();
}
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();
}
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
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PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
Error_Handler();
}
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / 1000);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
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void Error_Handler(void) {
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/* USER CODE BEGIN Error_Handler */
/* User can add his own implementation to report the HAL error return state */
while (1) {
}
/* USER CODE END Error_Handler */
}
#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,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/