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Reduce display startup time

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This commit is contained in:
Jasper Blanckenburg
2023-03-17 17:50:00 +01:00
parent 98f4a1d0ad
commit 7e4bc54266
10 changed files with 172 additions and 12 deletions
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9
Core/Src/hx8357d.c
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@ -1,6 +1,7 @@
#include "hx8357d.h"
#include "main.h"
#include "shorttimer.h"
void HX8357D_WriteData(uint8_t *data, size_t data_len) {
for (size_t byte = 0; byte < data_len; byte++) {
@ -9,9 +10,9 @@ void HX8357D_WriteData(uint8_t *data, size_t data_len) {
((data[byte] >> (7 - bit)) & 1) ? GPIO_PIN_SET : GPIO_PIN_RESET;
HAL_GPIO_WritePin(DISPSPI_SCL_GPIO_Port, DISPSPI_SCL_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(DISPSPI_SDA_GPIO_Port, DISPSPI_SDA_Pin, state);
HAL_Delay(1);
shorttimer_sleep(1);
HAL_GPIO_WritePin(DISPSPI_SCL_GPIO_Port, DISPSPI_SCL_Pin, GPIO_PIN_SET);
HAL_Delay(1);
shorttimer_sleep(1);
}
}
}
@ -19,11 +20,11 @@ void HX8357D_WriteData(uint8_t *data, size_t data_len) {
void HX8357D_WriteReg(uint8_t addr, uint8_t *data, size_t data_len) {
HAL_GPIO_WritePin(DISPSPI_CSX_GPIO_Port, DISPSPI_CSX_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(DISPSPI_DCX_GPIO_Port, DISPSPI_DCX_Pin, GPIO_PIN_RESET);
HAL_Delay(1);
shorttimer_sleep(1);
HX8357D_WriteData(&addr, 1);
HAL_GPIO_WritePin(DISPSPI_DCX_GPIO_Port, DISPSPI_DCX_Pin, GPIO_PIN_SET);
HAL_Delay(1);
shorttimer_sleep(1);
if (data_len > 0) {
HX8357D_WriteData(data, data_len);

53
Core/Src/main.c
View File

@ -26,6 +26,8 @@
#include "ft_logo_orange_rgb565.h"
#include "ft_logo_rainbow_rgb565.h"
#include "hx8357d.h"
#include "shorttimer.h"
#include <stdint.h>
/* USER CODE END Includes */
@ -63,8 +65,10 @@ SPI_HandleTypeDef hspi3;
TIM_HandleTypeDef htim1;
TIM_HandleTypeDef htim2;
TIM_HandleTypeDef htim4;
TIM_HandleTypeDef htim17;
/* USER CODE BEGIN PV */
TIM_HandleTypeDef *htim_us = &htim17;
volatile int ltdc_cb_triggered;
/* USER CODE END PV */
@ -81,6 +85,7 @@ static void MX_TIM1_Init(void);
static void MX_TIM2_Init(void);
static void MX_TIM4_Init(void);
static void MX_CRC_Init(void);
static void MX_TIM17_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
@ -128,14 +133,17 @@ int main(void) {
MX_TIM2_Init();
MX_TIM4_Init();
MX_CRC_Init();
MX_TIM17_Init();
/* Call PreOsInit function */
MX_TouchGFX_PreOSInit();
/* USER CODE BEGIN 2 */
if (HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_4) != HAL_OK) {
Error_Handler();
}
shorttimer_init(htim_us);
HX8357D_Init();
HX8357D_Mode_RGB666();
/* USER CODE END 2 */
@ -678,6 +686,35 @@ static void MX_TIM4_Init(void) {
HAL_TIM_MspPostInit(&htim4);
}
/**
* @brief TIM17 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM17_Init(void) {
/* USER CODE BEGIN TIM17_Init 0 */
/* USER CODE END TIM17_Init 0 */
/* USER CODE BEGIN TIM17_Init 1 */
/* USER CODE END TIM17_Init 1 */
htim17.Instance = TIM17;
htim17.Init.Prescaler = 16 - 1;
htim17.Init.CounterMode = TIM_COUNTERMODE_UP;
htim17.Init.Period = 1000 - 1;
htim17.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim17.Init.RepetitionCounter = 0;
htim17.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim17) != HAL_OK) {
Error_Handler();
}
/* USER CODE BEGIN TIM17_Init 2 */
/* USER CODE END TIM17_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
@ -772,7 +809,10 @@ static void MX_GPIO_Init(void) {
}
/* USER CODE BEGIN 4 */
// Ugly hack to ensure HAL_TIM_PeriodElapsedCallback() is called
#ifdef __cplusplus
extern "C" {
#endif
/* USER CODE END 4 */
/**
@ -791,7 +831,9 @@ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
HAL_IncTick();
}
/* USER CODE BEGIN Callback 1 */
if (htim->Instance == htim_us->Instance) {
shorttimer_callback();
}
/* USER CODE END Callback 1 */
}
@ -805,6 +847,13 @@ void Error_Handler(void) {
__disable_irq();
while (1) {
}
// Ugly hack to ensure HAL_TIM_PeriodElapsedCallback() is called
}
#ifdef __cplusplus
}
#endif
void _damnyoucubemx() {
;
/* USER CODE END Error_Handler_Debug */
}

29
Core/Src/shorttimer.c Normal file
View File

@ -0,0 +1,29 @@
#include "shorttimer.h"
#include "stm32h7xx_hal.h"
#include "stm32h7xx_hal_tim.h"
#include <stdint.h>
static TIM_HandleTypeDef *htim;
static uint32_t ticks;
void shorttimer_init(TIM_HandleTypeDef *handle) {
htim = handle;
ticks = 0;
HAL_TIM_Base_Start_IT(htim);
}
uint32_t shorttimer_gettick(void) { return ticks; }
void shorttimer_sleep(uint32_t microseconds) {
volatile uint32_t start = shorttimer_gettick();
// Add another tick to guarantee a minimum wait
if (microseconds < UINT32_MAX) {
microseconds++;
}
while (shorttimer_gettick() - start < microseconds) {
}
}
void shorttimer_callback() { ticks++; }

28
Core/Src/stm32h7xx_hal_msp.c
View File

@ -714,6 +714,20 @@ void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
/* USER CODE END TIM2_MspInit 1 */
}
else if(htim_base->Instance==TIM17)
{
/* USER CODE BEGIN TIM17_MspInit 0 */
/* USER CODE END TIM17_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_TIM17_CLK_ENABLE();
/* TIM17 interrupt Init */
HAL_NVIC_SetPriority(TIM17_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(TIM17_IRQn);
/* USER CODE BEGIN TIM17_MspInit 1 */
/* USER CODE END TIM17_MspInit 1 */
}
}
@ -839,6 +853,20 @@ void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base)
/* USER CODE END TIM2_MspDeInit 1 */
}
else if(htim_base->Instance==TIM17)
{
/* USER CODE BEGIN TIM17_MspDeInit 0 */
/* USER CODE END TIM17_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_TIM17_CLK_DISABLE();
/* TIM17 interrupt DeInit */
HAL_NVIC_DisableIRQ(TIM17_IRQn);
/* USER CODE BEGIN TIM17_MspDeInit 1 */
/* USER CODE END TIM17_MspDeInit 1 */
}
}

15
Core/Src/stm32h7xx_it.c
View File

@ -57,6 +57,7 @@
/* External variables --------------------------------------------------------*/
extern FDCAN_HandleTypeDef hfdcan1;
extern LTDC_HandleTypeDef hltdc;
extern TIM_HandleTypeDef htim17;
extern TIM_HandleTypeDef htim6;
/* USER CODE BEGIN EV */
@ -260,6 +261,20 @@ void LTDC_IRQHandler(void)
/* USER CODE END LTDC_IRQn 1 */
}
/**
* @brief This function handles TIM17 global interrupt.
*/
void TIM17_IRQHandler(void)
{
/* USER CODE BEGIN TIM17_IRQn 0 */
/* USER CODE END TIM17_IRQn 0 */
HAL_TIM_IRQHandler(&htim17);
/* USER CODE BEGIN TIM17_IRQn 1 */
/* USER CODE END TIM17_IRQn 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */