SPI
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Attila BODY
parent
61bd8c7632
commit
f02188bf2d
58 changed files with 32913 additions and 12617 deletions
209
Src/main.c
209
Src/main.c
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@ -38,6 +38,9 @@
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "stm32f1xx_hal.h"
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#include "dma.h"
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#include "spi.h"
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#include "gpio.h"
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/* USER CODE BEGIN Includes */
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@ -48,11 +51,12 @@
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/* USER CODE BEGIN PV */
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/* Private variables ---------------------------------------------------------*/
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volatile uint8_t g_done = 0;
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uint8_t g_ledBytes[] = {0, 0xff, 0, 0xff, 0x55, 0xaa};
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uint8_t g_ledBits[sizeof(g_ledBytes) * 8 / 2 + 1];
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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static void LL_Init(void);
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void SystemClock_Config(void);
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/* USER CODE BEGIN PFP */
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@ -61,6 +65,19 @@ void SystemClock_Config(void);
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/* USER CODE END PFP */
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/* USER CODE BEGIN 0 */
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void convert(uint8_t *src, uint8_t *dst, uint16_t size)
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{
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static uint8_t const bits[4] = { 0b10001000, 0b10001110, 0b11101000, 0b11101110 };
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while(size--) {
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uint8_t byte=*src++;
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uint8_t duo = 3;
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do {
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uint8_t mask = 3 << (duo<<1);
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*dst++ = bits[(byte & (mask))>>(duo<<1)];
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} while(duo--);
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}
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}
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/* USER CODE END 0 */
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@ -78,7 +95,7 @@ int main(void)
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/* MCU Configuration----------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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LL_Init();
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HAL_Init();
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/* USER CODE BEGIN Init */
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@ -93,135 +110,29 @@ int main(void)
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_DMA_Init();
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MX_SPI1_Init();
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/* USER CODE BEGIN 2 */
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convert(g_ledBytes, g_ledBits, sizeof(g_ledBytes));
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/* USER CODE END 2 */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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asm volatile(
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" movs r3, #1000 \n\t"
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"1: subs r3, #1 \n\t"
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" bne 1b \n\t"
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: : : "r3", "cc"
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);
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asm volatile("\tmovs r3, #1000\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc");
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GPIOB->ODR = 0;
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volatile uint32_t v;
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uint8_t ledbytes[] = {0, 0xff, 0, 0xff, 0x55, 0xaa};
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__disable_irq();
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#define W_1f 5
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#define W_0f 0
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#define W_0s 3
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#define W_1af
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#define W_1as ++v; ++v
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#define W_0af ++v; ++v
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#define W_0as ++v; ++v
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/*
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#define SHIFTBIT(x) \
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if(b&(1<<x)) { \
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GPIOB->BSRR = (1 << 11); \
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for( v=W_1f; v != 0; --v); \
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W_1af; \
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GPIOB->BSRR = (1 << (16+11)); \
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W_1as; \
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} else { \
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GPIOB->BSRR = (1 << 11); \
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for( v=W_0f; v != 0; --v); \
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W_0af; \
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GPIOB->BSRR = (1 << (16+11)); \
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for( v=W_0s; v != 0; --v); \
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W_0as; \
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}
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*/
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#define SHIFTBIT(x) \
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if(b&(1<<x)) { \
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GPIOB->BSRR = (1 << 11); \
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asm volatile("\tmov r3, #10\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \
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GPIOB->BSRR = (1 << (16+11)); \
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asm volatile("\tmov r3, #03\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \
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} else { \
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GPIOB->BSRR = (1 << 11); \
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asm volatile("\tmov r3, #03\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \
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GPIOB->BSRR = (1 << (16+11)); \
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asm volatile("\tmov r3, #10\n1:\tsubs r3, #1\n\tbne 1b\n\t" : : : "r3", "cc"); \
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}
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__disable_irq();
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while(1)
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{
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uint8_t *bufPtr = ledbytes;
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uint32_t cnt = sizeof(ledbytes) + 1;
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while(--cnt) {
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uint32_t b = *bufPtr++;
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SHIFTBIT(7);
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SHIFTBIT(6);
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SHIFTBIT(5);
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SHIFTBIT(4);
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SHIFTBIT(3);
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SHIFTBIT(2);
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SHIFTBIT(1);
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if(b&1) {
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GPIOB->BSRR = 1 << 11;
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for( v=W_1f; v != 0; --v);
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W_1af;
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GPIOB->BSRR = 1 << (16+11);
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W_1as;
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} else {
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GPIOB->BSRR = 1 << 11;
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for( v=W_0f; v != 0; --v);
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W_0af;
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GPIOB->BSRR = 1 << (16+11);
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for( v=W_0s; v != 0; --v);
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++v; v=0;
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}
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}
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HAL_StatusTypeDef st;
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g_ledBits[sizeof(g_ledBits)-1] = 0;
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st = HAL_SPI_Transmit_DMA(&hspi1, g_ledBits, sizeof(g_ledBits));
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while(!g_done);
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HAL_Delay(1);
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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for( v=100; v != 0; --v); //long
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}
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/* USER CODE END 3 */
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}
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static void LL_Init(void)
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{
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_AFIO);
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
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NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
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/* System interrupt init*/
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/* MemoryManagement_IRQn interrupt configuration */
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NVIC_SetPriority(MemoryManagement_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* BusFault_IRQn interrupt configuration */
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NVIC_SetPriority(BusFault_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* UsageFault_IRQn interrupt configuration */
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NVIC_SetPriority(UsageFault_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* SVCall_IRQn interrupt configuration */
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NVIC_SetPriority(SVCall_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* DebugMonitor_IRQn interrupt configuration */
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NVIC_SetPriority(DebugMonitor_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* PendSV_IRQn interrupt configuration */
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NVIC_SetPriority(PendSV_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* SysTick_IRQn interrupt configuration */
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NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/**NOJTAG: JTAG-DP Disabled and SW-DP Enabled
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*/
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LL_GPIO_AF_Remap_SWJ_NOJTAG();
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}
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/**
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@ -231,49 +142,47 @@ static void LL_Init(void)
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void SystemClock_Config(void)
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{
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LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
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RCC_OscInitTypeDef RCC_OscInitStruct;
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV2;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL13;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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_Error_Handler(__FILE__, __LINE__);
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}
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LL_RCC_HSE_Enable();
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/* Wait till HSE is ready */
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while(LL_RCC_HSE_IsReady() != 1)
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
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LL_RCC_PLL_Enable();
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/**Configure the Systick interrupt time
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*/
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
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/* Wait till PLL is ready */
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while(LL_RCC_PLL_IsReady() != 1)
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{
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}
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LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
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LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
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LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
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LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
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/* Wait till System clock is ready */
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while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
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{
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}
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LL_Init1msTick(72000000);
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LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
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LL_SetSystemCoreClock(72000000);
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/**Configure the Systick
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*/
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HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
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/* SysTick_IRQn interrupt configuration */
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NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
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}
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/* USER CODE BEGIN 4 */
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