swa1
Newbie
Hi,
I am trying to interface GLCD TM12864H6CCGWA-1 (controller st7567s) with STM32L031F4P6 through SPI communication.
PLease help me with this code , its not working with hardware.
I am trying to interface GLCD TM12864H6CCGWA-1 (controller st7567s) with STM32L031F4P6 through SPI communication.
PLease help me with this code , its not working with hardware.
Code:
/**
******************************************************************************
* @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 "stm32l0xx_hal.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/*LCD RST */
# define LCD_RST1 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_PIN_SET);
# define LCD_RST0 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_PIN_RESET);
/*LCD CS */
# define LCD_CS1 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2, GPIO_PIN_SET);
# define LCD_CS0 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2, GPIO_PIN_RESET);
/* LCD RS */
# define LCD_RS1 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);//A0
# define LCD_RS0 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET);
/* LCD SCK */
# define LCD_SCK1 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);//SCK
# define LCD_SCK0 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
/* LCD MOSI */
# define LCD_MOSI1 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_SET);//SDA
# define LCD_MOSI0 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_RESET);
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
uint8_t data_t[2];
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
void lcd_send_cmd(unsigned char cmd)
{
unsigned char data_u;
int i;
uint8_t data_t[2];
data_u= cmd&0x0f;
data_t[0]=data_u|0x04;
data_t[1]=data_u;
LCD_RS0;
LCD_CS0;
for(i=0;i<8;i++){
if( cmd & 0x0f){
LCD_MOSI1;}
else
{LCD_MOSI0;}
LCD_SCK1;
HAL_Delay(100);
LCD_SCK0;
cmd<<=1;
HAL_SPI_Transmit(&hspi1,data_t,2,100);
}
LCD_CS1;
}
void lcd_send_data(unsigned char data)
{
int i;
unsigned char data_u;
uint8_t data_t[2];
data_u= data&0x0f;
data_t[0]=data_u|0x05;
data_t[1]=data_u;
LCD_RS1;
LCD_RST0;
LCD_CS0;
for(i=0;i<8;i++)
{
if (data & 0x0f)
{
LCD_MOSI1}
else {LCD_MOSI0}
LCD_SCK1;
HAL_Delay(100);
LCD_SCK0;
data<<=1;
HAL_SPI_Transmit(&hspi1,data_t,2,100);
}
LCD_CS1;
}
void set_rr(char rr) //0<=rr<=7
{
LCD_RS0;
lcd_send_data((0x20)|((rr)&(0x07)));
}
void set_ev(char ev) //0<=ev<=63
{ //It is recommended the EV should be close to the center (1FH) for easy contrast adjustment
LCD_RS0;
lcd_send_data(0x81);
lcd_send_data(((0x3F)&(ev)));
}
void power_control(char dat) //0<=dat<=7
//dat=1: Built-in Follower ON
//dat=2: Built-in Regulator ON
//dat=4: Built-in Booster ON
{
LCD_RS0;
dat=((dat)&(0x07));
lcd_send_data(((0x28)|(dat)));
}
void lcd_Init(void)
{
LCD_RS0;
LCD_CS1;
LCD_RST0;
HAL_Delay(100);
LCD_RST1;
lcd_send_cmd (0xE2);//Sw RESWT
HAL_Delay(100);
lcd_send_cmd (0xA2);//LCD bias
HAL_Delay(100);
lcd_send_cmd (0xAF);//display on
HAL_Delay(100);
lcd_send_cmd (0xA0);//Segment direction
HAL_Delay(100);
lcd_send_cmd (0xC8);//common direction
HAL_Delay(100);
set_rr(0x04);//Regulation resistor select
HAL_Delay(100);
set_ev(0x1F);;//EV select
HAL_Delay(100);
power_control(0x07); //ALL Power Control ON
HAL_Delay(100);
lcd_send_cmd (0x40);//Initial display line 40
HAL_Delay(100);
lcd_send_cmd (0xB0);//set page address
HAL_Delay(100);
lcd_send_cmd (0x10);//set colmn address MSB
HAL_Delay(100);
lcd_send_cmd (0x00);//set column address LSB
HAL_Delay(100);
lcd_send_cmd (0xAF);//display on
HAL_Delay(100);
lcd_send_cmd (0xA4);//normal display , all pixels on
HAL_Delay(100);
}
void lcd_send_string (char *str)
{
while (*str) lcd_send_data (*str++);
}
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/**
* @brief The application entry point.
*
* @retval None
*/
int main(void)
{
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI1_Init();
/* USER CODE BEGIN 2 */
LCD_SCK1;
LCD_CS0;
LCD_RST0;
HAL_Delay(100);
LCD_RST1;
HAL_Delay(100);
lcd_Init();
lcd_send_cmd(0x29);
HAL_Delay(100);
printf("hi");
lcd_send_string("hello hello");
printf("IS it working? ");
/* while(1)
{
int i;
i = 0;
for(i = 0; i < 63; i++)
{
lcd_send_cmd(0x00+i);
lcd_send_data(0xff);
HAL_Delay(100);
}
}*/
LCD_CS1;
/* USER CODE END 2 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
//Enable power control clock
__HAL_RCC_PWR_CLK_ENABLE();
/**Configure the main internal regulator output voltage
*/
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLLMUL_3;
RCC_OscInitStruct.PLL.PLLDIV = RCC_PLLDIV_3;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Initializes the CPU, AHB and APB busses clocks
*/
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_DIV8;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* SPI1 init function */
static void MX_SPI1_Init(void)
{
/* SPI1 parameter configuration*/
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_HIGH;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 7;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_SPI1_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(CS_GPIO_Port, CS_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : RST_Pin RS_Pin */
GPIO_InitStruct.Pin = RST_Pin|RS_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : CS_Pin */
GPIO_InitStruct.Pin = CS_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(CS_GPIO_Port, &GPIO_InitStruct);
/*Configure SPI pin : MOSI_Pin,SCK_Pin */
/* GPIO_InitStruct.Pin = MOSI_Pin|SCK_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
// GPIO_InitStruct.Alternate=GPIO_AF_SPI1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);*/
__HAL_SPI_ENABLE(&hspi1);
}
/* 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 */
/* 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****/
