/** ****************************************************************************** * @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 * * 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 ------------------------------------------------------------------*/ #include "main.h" #include "gpio.h" /* USER CODE BEGIN Includes */ #include "bitband.h" /* USER CODE END Includes */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ /* Private variables ---------------------------------------------------------*/ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ static void LL_Init(void); void SystemClock_Config(void); /* USER CODE BEGIN PFP */ /* Private function prototypes -----------------------------------------------*/ /* USER CODE END PFP */ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * @brief The application entry point. * * @retval None */ int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration----------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ LL_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(); /* USER CODE BEGIN 2 */ /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ asm volatile( " movs r3, #1000 \n\t" "1: subs r3, #1 \n\t" " bne 1b \n\t" : : : "r3", "cc" ); asm volatile("\tmovs r3, #1000\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); GPIOB->ODR = 0; volatile uint32_t v; uint8_t ledbytes[] = {0, 0xff, 0, 0xff, 0x55, 0xaa}; __disable_irq(); #define W_1f 5 #define W_0f 0 #define W_0s 3 #define W_1af #define W_1as ++v; ++v #define W_0af ++v; ++v #define W_0as ++v; ++v /* #define SHIFTBIT(x) \ if(b&(1<BSRR = (1 << 11); \ for( v=W_1f; v != 0; --v); \ W_1af; \ GPIOB->BSRR = (1 << (16+11)); \ W_1as; \ } else { \ GPIOB->BSRR = (1 << 11); \ for( v=W_0f; v != 0; --v); \ W_0af; \ GPIOB->BSRR = (1 << (16+11)); \ for( v=W_0s; v != 0; --v); \ W_0as; \ } */ #define SHIFTBIT(x) \ if(b&(1<BSRR = (1 << 11); \ asm volatile("\tmov r3, #10\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \ GPIOB->BSRR = (1 << (16+11)); \ asm volatile("\tmov r3, #03\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \ } else { \ GPIOB->BSRR = (1 << 11); \ asm volatile("\tmov r3, #03\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \ GPIOB->BSRR = (1 << (16+11)); \ asm volatile("\tmov r3, #10\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \ } __disable_irq(); while(1) { uint8_t *bufPtr = ledbytes; uint32_t cnt = sizeof(ledbytes) + 1; while(--cnt) { uint32_t b = *bufPtr++; SHIFTBIT(7); SHIFTBIT(6); SHIFTBIT(5); SHIFTBIT(4); SHIFTBIT(3); SHIFTBIT(2); SHIFTBIT(1); if(b&1) { GPIOB->BSRR = 1 << 11; for( v=W_1f; v != 0; --v); W_1af; GPIOB->BSRR = 1 << (16+11); W_1as; } else { GPIOB->BSRR = 1 << 11; for( v=W_0f; v != 0; --v); W_0af; GPIOB->BSRR = 1 << (16+11); for( v=W_0s; v != 0; --v); ++v; v=0; } } /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ for( v=100; v != 0; --v); //long } /* USER CODE END 3 */ } static void LL_Init(void) { LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_AFIO); LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR); NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4); /* System interrupt init*/ /* MemoryManagement_IRQn interrupt configuration */ NVIC_SetPriority(MemoryManagement_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /* BusFault_IRQn interrupt configuration */ NVIC_SetPriority(BusFault_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /* UsageFault_IRQn interrupt configuration */ NVIC_SetPriority(UsageFault_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /* SVCall_IRQn interrupt configuration */ NVIC_SetPriority(SVCall_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /* DebugMonitor_IRQn interrupt configuration */ NVIC_SetPriority(DebugMonitor_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /* PendSV_IRQn interrupt configuration */ NVIC_SetPriority(PendSV_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /* SysTick_IRQn interrupt configuration */ NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); /**NOJTAG: JTAG-DP Disabled and SW-DP Enabled */ LL_GPIO_AF_Remap_SWJ_NOJTAG(); } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { LL_FLASH_SetLatency(LL_FLASH_LATENCY_2); if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2) { Error_Handler(); } LL_RCC_HSE_Enable(); /* Wait till HSE is ready */ while(LL_RCC_HSE_IsReady() != 1) { } LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9); LL_RCC_PLL_Enable(); /* Wait till PLL is ready */ while(LL_RCC_PLL_IsReady() != 1) { } LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1); LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2); LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1); LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL); /* Wait till System clock is ready */ while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) { } LL_Init1msTick(72000000); LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK); LL_SetSystemCoreClock(72000000); /* SysTick_IRQn interrupt configuration */ NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0)); } /* 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****/