Arrive/HW-DEPT-SIGN-STM32
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David Rice
2026-04-08 16:08:35 +01:00
commit 073ad7e2eb
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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2026 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <string.h>
#include <stdint.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define ROWS 7
#define COLS 96
#define NUM_CHIPS 12 /* 12 x 8 bits = 96 column bits */
#define ROW_DWELL 500 /* microseconds per row — tune for flicker/ghosting */
#define UART_BUF 128
#define WIDE_COLS 512 /* pre-render buffer width */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;
UART_HandleTypeDef huart2;
/* USER CODE BEGIN PV */
/* Row pin lookup — matches CubeMX GPIO labels */
typedef struct { GPIO_TypeDef *port; uint16_t pin; } RowPin;
static const RowPin ROW_PINS[ROWS] = {
{ROW_0_GPIO_Port, ROW_0_Pin}, /* ROW_0 — PB0 */
{ROW_1_GPIO_Port, ROW_1_Pin}, /* ROW_1 — PA0 */
{ROW_2_GPIO_Port, ROW_2_Pin}, /* ROW_2 — PA1 */
{ROW_3_GPIO_Port, ROW_3_Pin}, /* ROW_3 — PB4 */
{ROW_4_GPIO_Port, ROW_4_Pin}, /* ROW_4 — PB5 */
{ROW_5_GPIO_Port, ROW_5_Pin}, /* ROW_5 — PA11 */
{ROW_6_GPIO_Port, ROW_6_Pin}, /* ROW_6 — PA8 */
};
/* Framebuffer — fb[row][chip], each byte = 8 column bits */
static uint8_t fb[ROWS][NUM_CHIPS];
/* Pre-rendered wide scroll buffer */
static uint8_t wide[ROWS][WIDE_COLS];
static uint16_t wide_cols = 0; /* 0 = no message yet, display stays blank */
static int32_t scroll_x = 0;
/* UART receive */
static uint8_t uart_rx_byte;
static char uart_buf[UART_BUF];
static uint8_t uart_idx = 0;
static uint8_t new_message = 0;
static char message[UART_BUF] = "";
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
static void MX_USART2_UART_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* 5x7 font, ASCII 32-90
Each glyph = 5 bytes (columns), bit0 = top row */
static const uint8_t FONT[][5] = {
{0x00,0x00,0x00,0x00,0x00}, /* ' ' 32 */
{0x00,0x00,0x5F,0x00,0x00}, /* '!' */
{0x00,0x07,0x00,0x07,0x00}, /* '"' */
{0x14,0x7F,0x14,0x7F,0x14}, /* '#' */
{0x24,0x2A,0x7F,0x2A,0x12}, /* '$' */
{0x23,0x13,0x08,0x64,0x62}, /* '%' */
{0x36,0x49,0x55,0x22,0x50}, /* '&' */
{0x00,0x05,0x03,0x00,0x00}, /* ''' */
{0x00,0x1C,0x22,0x41,0x00}, /* '(' */
{0x00,0x41,0x22,0x1C,0x00}, /* ')' */
{0x08,0x2A,0x1C,0x2A,0x08}, /* '*' */
{0x08,0x08,0x3E,0x08,0x08}, /* '+' */
{0x00,0x50,0x30,0x00,0x00}, /* ',' */
{0x08,0x08,0x08,0x08,0x08}, /* '-' */
{0x00,0x60,0x60,0x00,0x00}, /* '.' */
{0x20,0x10,0x08,0x04,0x02}, /* '/' */
{0x3E,0x51,0x49,0x45,0x3E}, /* '0' */
{0x00,0x42,0x7F,0x40,0x00}, /* '1' */
{0x42,0x61,0x51,0x49,0x46}, /* '2' */
{0x21,0x41,0x45,0x4B,0x31}, /* '3' */
{0x18,0x14,0x12,0x7F,0x10}, /* '4' */
{0x27,0x45,0x45,0x45,0x39}, /* '5' */
{0x3C,0x4A,0x49,0x49,0x30}, /* '6' */
{0x01,0x71,0x09,0x05,0x03}, /* '7' */
{0x36,0x49,0x49,0x49,0x36}, /* '8' */
{0x06,0x49,0x49,0x29,0x1E}, /* '9' */
{0x00,0x36,0x36,0x00,0x00}, /* ':' */
{0x00,0x56,0x36,0x00,0x00}, /* ';' */
{0x00,0x08,0x14,0x22,0x41}, /* '<' */
{0x14,0x14,0x14,0x14,0x14}, /* '=' */
{0x41,0x22,0x14,0x08,0x00}, /* '>' */
{0x02,0x01,0x51,0x09,0x06}, /* '?' */
{0x32,0x49,0x79,0x41,0x3E}, /* '@' */
{0x7E,0x09,0x09,0x09,0x7E}, /* 'A' */
{0x7F,0x49,0x49,0x49,0x36}, /* 'B' */
{0x3E,0x41,0x41,0x41,0x22}, /* 'C' */
{0x7F,0x41,0x41,0x41,0x3E}, /* 'D' */
{0x7F,0x49,0x49,0x49,0x41}, /* 'E' */
{0x7F,0x09,0x09,0x09,0x01}, /* 'F' */
{0x3E,0x41,0x49,0x49,0x7A}, /* 'G' */
{0x7F,0x08,0x08,0x08,0x7F}, /* 'H' */
{0x41,0x7F,0x41,0x00,0x00}, /* 'I' */
{0x20,0x40,0x41,0x3F,0x01}, /* 'J' */
{0x7F,0x08,0x14,0x22,0x41}, /* 'K' */
{0x7F,0x40,0x40,0x40,0x40}, /* 'L' */
{0x7F,0x02,0x04,0x02,0x7F}, /* 'M' */
{0x7F,0x04,0x08,0x10,0x7F}, /* 'N' */
{0x3E,0x41,0x41,0x41,0x3E}, /* 'O' */
{0x7F,0x09,0x09,0x09,0x06}, /* 'P' */
{0x3E,0x41,0x51,0x21,0x5E}, /* 'Q' */
{0x7F,0x09,0x19,0x29,0x46}, /* 'R' */
{0x46,0x49,0x49,0x49,0x31}, /* 'S' */
{0x01,0x01,0x7F,0x01,0x01}, /* 'T' */
{0x3F,0x40,0x40,0x40,0x3F}, /* 'U' */
{0x1F,0x20,0x40,0x20,0x1F}, /* 'V' */
{0x7F,0x20,0x10,0x20,0x7F}, /* 'W' */
{0x63,0x14,0x08,0x14,0x63}, /* 'X' */
{0x03,0x04,0x78,0x04,0x03}, /* 'Y' */
{0x61,0x51,0x49,0x45,0x43}, /* 'Z' */
};
/* ── Microsecond busy-wait using DWT cycle counter ── */
static void delay_us(uint32_t us)
{
uint32_t start = DWT->CYCCNT;
uint32_t ticks = (SystemCoreClock / 1000000U) * us;
while ((DWT->CYCCNT - start) < ticks);
}
/* ── Turn all row pins off (HIGH = ULN2803A pulls gate low = MOSFET off) ── */
static void all_rows_off(void)
{
for (int i = 0; i < ROWS; i++)
HAL_GPIO_WritePin(ROW_PINS[i].port, ROW_PINS[i].pin, GPIO_PIN_SET);
}
/* ── Send one row of column data via SPI then enable that row ── */
static void display_refresh(void)
{
for (int row = 0; row < ROWS; row++) {
all_rows_off();
HAL_SPI_Transmit(&hspi1, fb[row], NUM_CHIPS, HAL_MAX_DELAY);
/* LOW = ULN2803A releases gate = MOSFET on = row enabled */
HAL_GPIO_WritePin(ROW_PINS[row].port, ROW_PINS[row].pin, GPIO_PIN_RESET);
delay_us(ROW_DWELL);
}
all_rows_off();
}
/* ── Render message string into wide[] pixel buffer ── */
static void render_message(const char *msg)
{
memset(wide, 0, sizeof(wide));
uint16_t col = COLS; /* lead with one blank screen so text scrolls in */
while (*msg && col < (WIDE_COLS - 6)) {
uint8_t c = (uint8_t)*msg++;
/* Convert lowercase to uppercase */
if (c >= 'a' && c <= 'z') c -= 32;
if (c >= 32 && c <= 90) {
const uint8_t *glyph = FONT[c - 32];
for (int g = 0; g < 5 && col < WIDE_COLS; g++, col++) {
for (int row = 0; row < ROWS; row++) {
wide[row][col] = (glyph[g] >> row) & 1;
}
}
}
col++; /* one gap column between characters */
}
wide_cols = col + COLS; /* scroll until text fully exits left edge */
scroll_x = 0;
}
/* ── Copy current scroll window from wide[] into fb[][] ── */
static void update_fb_from_scroll(void)
{
for (int row = 0; row < ROWS; row++) {
memset(fb[row], 0, NUM_CHIPS);
for (int col = 0; col < COLS; col++) {
uint16_t src = (uint16_t)(scroll_x + col);
if (src < WIDE_COLS && wide[row][src]) {
int chip = col / 8;
int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
}
}
}
/* ── Arrive north star pixel map, 7 rows x 11 cols ── */
static const uint8_t STAR[7][11] = {
{0,0,0,0,1,0,0,0,0,0,0},
{0,0,0,1,1,1,0,0,0,0,0},
{1,1,0,0,1,0,0,1,1,1,1},
{1,1,1,1,1,1,1,1,1,1,1},
{1,1,0,0,1,0,0,1,1,1,1},
{0,0,0,1,1,1,0,0,0,0,0},
{0,0,0,0,1,0,0,0,0,0,0},
};
/* ARRIVE — 6 chars, each 5 cols wide + 1 col gap = 36 cols total
Rows 0-6, col order left to right: A R R I V E */
static const uint8_t ARRIVE_GLYPH[7][36] = {
/* A R R I V E */
/* r0 */ {0,1,1,1,0,0, 0,1,1,1,0,0, 0,1,1,1,0,0, 0,1,1,1,0,0, 1,0,0,0,1,0, 1,1,1,1,1,0},
/* r1 */ {1,0,0,0,1,0, 1,0,0,0,1,0, 1,0,0,0,1,0, 0,0,1,0,0,0, 1,0,0,0,1,0, 1,0,0,0,0,0},
/* r2 */ {1,0,0,0,1,0, 1,0,0,0,1,0, 1,0,0,0,1,0, 0,0,1,0,0,0, 1,0,0,0,1,0, 1,0,0,0,0,0},
/* r3 */ {1,1,1,1,1,0, 1,1,1,1,0,0, 1,1,1,1,0,0, 0,0,1,0,0,0, 0,1,0,1,0,0, 1,1,1,1,0,0},
/* r4 */ {1,0,0,0,1,0, 1,0,1,0,0,0, 1,0,1,0,0,0, 0,0,1,0,0,0, 0,1,0,1,0,0, 1,0,0,0,0,0},
/* r5 */ {1,0,0,0,1,0, 1,0,0,1,0,0, 1,0,0,1,0,0, 0,0,1,0,0,0, 0,0,1,0,0,0, 1,0,0,0,0,0},
/* r6 */ {1,0,0,0,1,0, 1,0,0,0,1,0, 1,0,0,0,1,0, 0,1,1,1,0,0, 0,0,1,0,0,0, 1,1,1,1,1,0},
};
/* ── Render logo into fb
mask_col: columns < mask_col are hidden (wipe reveals right-to-left), -1 = show all ── */
static void render_logo(int star_col, int text_col, int mask_col)
{
memset(fb, 0, sizeof(fb));
/* Draw star */
for (int row = 0; row < 7; row++) {
for (int sc = 0; sc < 11; sc++) {
int col = star_col + sc;
if (col >= 0 && col < COLS && STAR[row][sc]) {
if (mask_col < 0 || col >= mask_col) {
int chip = col / 8;
int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
}
}
}
/* Draw ARRIVE text */
for (int row = 0; row < 7; row++) {
for (int tc = 0; tc < 36; tc++) {
int col = text_col + tc;
if (col >= 0 && col < COLS && ARRIVE_GLYPH[row][tc]) {
if (mask_col < 0 || col >= mask_col) {
int chip = col / 8;
int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
}
}
}
}
/* ── Blank fb but keep specific rows lit (bitmask) ── */
static void render_logo_rows(int star_col, int text_col, uint8_t row_mask)
{
memset(fb, 0, sizeof(fb));
for (int row = 0; row < 7; row++) {
if (!(row_mask & (1 << row))) continue;
for (int sc = 0; sc < 11; sc++) {
int col = star_col + sc;
if (col >= 0 && col < COLS && STAR[row][sc]) {
int chip = col / 8; int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
}
for (int tc = 0; tc < 30; tc++) {
int col = text_col + tc;
if (col >= 0 && col < COLS && ARRIVE_GLYPH[row][tc]) {
int chip = col / 8; int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
}
}
}
/* ── Refresh for a given number of milliseconds ── */
static void refresh_for(uint32_t ms)
{
uint32_t t = HAL_GetTick();
while ((HAL_GetTick() - t) < ms) { display_refresh(); }
}
/* ── Arrive boot animation ── */
static void arrive_animation(void)
{
/* Logo layout — text LEFT, star RIGHT:
ARRIVE = 36 cols, gap = 2, star = 11 cols → total = 49 cols
centred on 96: start = (96 - 49) / 2 = 23
text_col = 23, star_col = 23 + 36 + 2 = 61 */
const int text_col = 23;
const int star_col = 61;
/* ── Phase 1: Star builds from centre outward ── */
/* Frame 1 — just centre cross */
memset(fb, 0, sizeof(fb));
for (int row = 0; row < 7; row++) {
int col = star_col + 4; /* centre column of star */
int chip = col / 8; int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
/* horizontal bar centre */
for (int sc = 3; sc <= 5; sc++) {
int col = star_col + sc;
int chip = col / 8; int bit = 7 - (col % 8);
fb[3][chip] |= (uint8_t)(1 << bit);
}
refresh_for(120);
/* Frame 2 — inner star shape */
memset(fb, 0, sizeof(fb));
for (int row = 0; row < 7; row++) {
for (int sc = 3; sc <= 7; sc++) {
if (STAR[row][sc]) {
int col = star_col + sc;
int chip = col / 8; int bit = 7 - (col % 8);
fb[row][chip] |= (uint8_t)(1 << bit);
}
}
}
refresh_for(120);
/* Frame 3 — full star, text still hidden */
render_logo(star_col, text_col, star_col); /* mask hides everything left of star */
refresh_for(150);
/* ── Phase 2: Glint pulse ── */
memset(fb, 0, sizeof(fb));
refresh_for(80);
render_logo(star_col, text_col, star_col);
refresh_for(80);
memset(fb, 0, sizeof(fb));
refresh_for(60);
render_logo(star_col, text_col, star_col);
refresh_for(100);
/* ── Phase 3: Wipe right-to-left — reveal ARRIVE sweeping from star leftward ── */
for (int mask = star_col; mask >= text_col - 1; mask -= 2) {
render_logo(star_col, text_col, mask);
refresh_for(18);
}
render_logo(star_col, text_col, -1);
refresh_for(18);
/* ── Phase 4: Hold ── */
refresh_for(2000);
/* ── Phase 5: Fade out — rows extinguish top+bottom inward ── */
/* Order: 0,6 then 1,5 then 2,4 then 3 */
uint8_t row_mask = 0x7F; /* all 7 rows on */
row_mask &= ~(1 << 0); row_mask &= ~(1 << 6);
render_logo_rows(star_col, text_col, row_mask); refresh_for(80);
row_mask &= ~(1 << 1); row_mask &= ~(1 << 5);
render_logo_rows(star_col, text_col, row_mask); refresh_for(80);
row_mask &= ~(1 << 2); row_mask &= ~(1 << 4);
render_logo_rows(star_col, text_col, row_mask); refresh_for(80);
row_mask &= ~(1 << 3);
memset(fb, 0, sizeof(fb)); refresh_for(80);
/* Brief blank before scroll */
refresh_for(200);
}
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
if (huart->Instance == USART2) {
char b = (char)uart_rx_byte;
if (b == '\n' || b == '\r') {
if (uart_idx > 0) {
uart_buf[uart_idx] = '\0';
memcpy(message, uart_buf, uart_idx + 1);
uart_idx = 0;
new_message = 1;
}
} else if (uart_idx < UART_BUF - 1) {
uart_buf[uart_idx++] = b;
}
/* Re-arm for next byte */
HAL_UART_Receive_IT(&huart2, &uart_rx_byte, 1);
}
}
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
MX_GPIO_Init();
MX_SPI1_Init();
MX_USART2_UART_Init();
/* USER CODE BEGIN 2 */
/* Enable DWT cycle counter for microsecond delays */
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CYCCNT = 0;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
/* All rows off, blank display */
all_rows_off();
memset(fb, 0, sizeof(fb));
/* Start UART receive interrupt */
HAL_UART_Receive_IT(&huart2, &uart_rx_byte, 1);
/* Render default message */
render_message(message);
update_fb_from_scroll();
/* USER CODE END 2 */
/* USER CODE BEGIN WHILE */
/* Run boot animation */
arrive_animation();
update_fb_from_scroll();
uint32_t last_scroll = HAL_GetTick();
const uint32_t scroll_ms = 40;
while (1)
{
if (new_message) {
new_message = 0;
render_message(message);
}
if ((HAL_GetTick() - last_scroll) >= scroll_ms) {
last_scroll = HAL_GetTick();
scroll_x++;
if (scroll_x >= wide_cols) {
/* End of message — switch to next */
scroll_x = 0;
}
update_fb_from_scroll();
}
display_refresh();
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV4;
RCC_OscInitStruct.PLL.PLLN = 85;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
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_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief SPI1 Initialization Function
*/
static void MX_SPI1_Init(void)
{
/* USER CODE BEGIN SPI1_Init 0 */
/* USER CODE END SPI1_Init 0 */
/* USER CODE BEGIN SPI1_Init 1 */
/* USER CODE END SPI1_Init 1 */
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_HARD_OUTPUT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 7;
hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI1_Init 2 */
/* USER CODE END SPI1_Init 2 */
}
/**
* @brief USART2 Initialization Function
*/
static void MX_USART2_UART_Init(void)
{
/* USER CODE BEGIN USART2_Init 0 */
/* USER CODE END USART2_Init 0 */
/* USER CODE BEGIN USART2_Init 1 */
/* USER CODE END USART2_Init 1 */
huart2.Instance = USART2;
huart2.Init.BaudRate = 115200;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart2.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart2, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart2, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART2_Init 2 */
/* USER CODE END USART2_Init 2 */
}
/**
* @brief GPIO Initialization Function
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
HAL_GPIO_WritePin(GPIOA, ROW_1_Pin|ROW_2_Pin|ROW_6_Pin|ROW_5_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, ROW_0_Pin|ROW_3_Pin|ROW_4_Pin|LED_Pin, GPIO_PIN_SET);
GPIO_InitStruct.Pin = ROW_1_Pin|ROW_2_Pin|ROW_6_Pin|ROW_5_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = ROW_0_Pin|ROW_3_Pin|ROW_4_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = LED_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */