st7735r.h File Reference

Main header file for the ST7735R LCD chip. More...

#include "main.h"

Go to the source code of this file.

Data Structures
struct	ST7735R

Macros
#define	ST7735R_RET_OK   0
#define	ST7735R_RET_FAIL   0
#define	ST7735R_SPI_TIMEOUT   100

Typedefs
typedef int	ST7735R_Return

Functions
void	ST7735R_CS_High (void)
	Set SPI1 CS pin. More...
void	ST7735R_CS_Low (void)
	Bring low SPI1 CS pin. More...
ST7735R_Return	ST7735R_Write_Command (struct ST7735R *self, uint8_t cmd)
	Write command on device. More...
ST7735R_Return	ST7735R_Write_Data (struct ST7735R *self, uint8_t *data, uint8_t size)
	Write data to RAM on device. More...
ST7735R_Return	ST7735R_Backlight_Off (struct ST7735R *self)
	Turn backlight off. More...

Variables
static uint8_t	ST7735R_NOP_CMD = 0x00
	NOP command. More...
static uint8_t	ST7735R_SWRESET_CMD = 0x01
	SWRESET command. More...
static uint8_t	ST7735R_RDDID_CMD = 0x04
	RDDID command. More...
static uint8_t	ST7735R_RDDST_CMD = 0x09
	RDDST command. More...
static uint8_t	ST7735R_RDDPM_CMD = 0xA0
	RDDPM command. More...
static uint8_t	ST7735R_RDDMADCTL_CMD = 0xB0
	RDDMADCTL command. More...
static uint8_t	ST7735R_RDDCOLMOD_CMD = 0xC0
	RDDCOLMOD command. More...
static uint8_t	ST7735R_RDDIM_CMD = 0xD0
	RDDIM command. More...
static uint8_t	ST7735R_RDDSM_CMD = 0xE0
	RDDSM command. More...
static uint8_t	ST7735R_SLPIN_CMD = 0x10
	SLPIN command. More...
static uint8_t	ST7735R_SLPOUT_CMD = 0x11
	SLPOUT command. More...
static uint8_t	ST7735R_PTLON_CMD = 0x12
	PTLON command. More...
static uint8_t	ST7735R_NORON_CMD = 0x13
	NORON command. More...
static uint8_t	ST7735R_INVOFF_CMD = 0x20
	INVOFF command. More...
static uint8_t	ST7735R_INVON_CMD = 0x21
	INVON command. More...
static uint8_t	ST7735R_GAMSET_CMD = 0x26
	GAMSET command. More...
static uint8_t	ST7735R_DISPOFF_CMD = 0x28
	DISPOFF command. More...
static uint8_t	ST7735R_DISPON_CMD = 0x29
	DISPON command. More...
static uint8_t	ST7735R_CASET_CMD = 0x2A
	CASET command. More...
static uint8_t	ST7735R_RASET_CMD = 0x2B
	RASET command. More...
static uint8_t	ST7735R_RAMWR_CMD = 0x2C
	RAMWR command. More...
static uint8_t	ST7735R_RGBSET_CMD = 0x2D
	RGBSET command. More...
static uint8_t	ST7735R_RAMRD_CMD = 0x2E
	RAMRD command. More...
static uint8_t	ST7735R_PTLAR_CMD = 0x30
	PTLAR command. More...
static uint8_t	ST7735R_TEOFF_CMD = 0x34
	TEOFF command. More...
static uint8_t	ST7735R_TEON_CMD = 0x35
	TEON command. More...
static uint8_t	ST7735R_MADCTL_CMD = 0x36
	MADCTL command. More...
static uint8_t	ST7735R_IDMOFF_CMD = 0x38
	IDMOFF command. More...
static uint8_t	ST7735R_IDMON_CMD = 0x39
	IDMON command. More...
static uint8_t	ST7735R_COLMOD_CMD = 0x3A
	COLMOD command. More...
static uint8_t	ST7735R_RDID1_CMD = 0xDA
	RDID1 command. More...
static uint8_t	ST7735R_RDID2_CMD = 0xDB
	RDID2 command. More...
static uint8_t	ST7735R_RDID3_CMD = 0xDC
	RDID3 command. More...

Detailed Description

Main header file for the ST7735R LCD chip.

pinkeee @ j.t0d.nosp@m.d@pr.nosp@m.otonm.nosp@m.ail..nosp@m.com

Note

See README for contributing guides and info.

Copyright

See License file.

Definition in file st7735r.h.

Macro Definition Documentation

ST7735R_RET_FAIL

#define ST7735R_RET_FAIL   0

Definition at line 16 of file st7735r.h.

ST7735R_RET_OK

#define ST7735R_RET_OK   0

Definition at line 15 of file st7735r.h.

ST7735R_SPI_TIMEOUT

#define ST7735R_SPI_TIMEOUT   100

Definition at line 18 of file st7735r.h.

Typedef Documentation

ST7735R_Return

typedef int ST7735R_Return

Definition at line 269 of file st7735r.h.

Function Documentation

ST7735R_Backlight_Off()

ST7735R_Return ST7735R_Backlight_Off

(

struct ST7735R *

self

)

Turn backlight off.

Returns

either ST7735R_RET_OK or ST7735R_RET_FAIL

Definition at line 74 of file st7735r.c.

{
  uint8_t tx[2] = {0};
  uint8_t rx[10] = {0};

  tx[0] = ST7735R_DISPOFF_CMD;

  ST7735R_CS_Low();
  HAL_GPIO_WritePin(A0_GPIO_Port, A0_Pin, GPIO_PIN_RESET);

  HAL_SPI_Transmit(self->SPI_Handler, tx, sizeof(tx), 100);
  //HAL_SPI_Receive(self->SPI_Handler, rx, 4, 100);
  ST7735R_CS_High();

  return ST7735R_RET_OK;
}

ST7735R_CS_High()

void ST7735R_CS_High

(

void

)

Set SPI1 CS pin.

Parameters

Void

Returns

Void N/A

Definition at line 16 of file st7735r.c.

{
  HAL_GPIO_WritePin(SPI1_CS_GPIO_Port, SPI1_CS_Pin, GPIO_PIN_SET);
}

ST7735R_CS_Low()

void ST7735R_CS_Low

(

void

)

Bring low SPI1 CS pin.

Parameters

Void

Returns

Void N/A

Definition at line 26 of file st7735r.c.

{
  HAL_GPIO_WritePin(SPI1_CS_GPIO_Port, SPI1_CS_Pin, GPIO_PIN_RESET);
}

ST7735R_Write_Command()

ST7735R_Return ST7735R_Write_Command	(	struct ST7735R *	self,
		uint8_t	cmd
	)

Write command on device.

Parameters

cmd	what command to write to

Returns

either ST7735R_RET_OK or ST7735R_RET_FAIL

Definition at line 36 of file st7735r.c.

{
  HAL_GPIO_WritePin(A0_GPIO_Port, A0_Pin, GPIO_PIN_RESET);

  ST7735R_CS_Low();
  if (HAL_SPI_Transmit(self->SPI_Handler, &cmd, sizeof(cmd), ST7735R_SPI_TIMEOUT) != HAL_OK)
  {
    ST7735R_CS_High();
    return ST7735R_RET_FAIL;
  }
  ST7735R_CS_High();
  return ST7735R_RET_OK;
}

ST7735R_Write_Data()

ST7735R_Return ST7735R_Write_Data	(	struct ST7735R *	self,
		uint8_t *	data,
		uint8_t	size
	)

Write data to RAM on device.

Parameters

data	what command to write to
size	size of data buffer

Returns

either ST7735R_RET_OK or ST7735R_RET_FAIL

Definition at line 56 of file st7735r.c.

{
  HAL_GPIO_WritePin(A0_GPIO_Port, A0_Pin, GPIO_PIN_SET);

  ST7735R_CS_Low();
  if (HAL_SPI_Transmit(self->SPI_Handler, data, size, ST7735R_SPI_TIMEOUT) != HAL_OK)
  {
    ST7735R_CS_High();
    return ST7735R_RET_FAIL;
  }
  ST7735R_CS_High();
  return ST7735R_RET_OK;
}

Variable Documentation

ST7735R_CASET_CMD

uint8_t ST7735R_CASET_CMD = 0x2A

static

CASET command.

Column address set

Returns

0x2A

Definition at line 153 of file st7735r.h.

ST7735R_COLMOD_CMD

uint8_t ST7735R_COLMOD_CMD = 0x3A

static

COLMOD command.

Interface pixel format

Returns

0x3A

Definition at line 230 of file st7735r.h.

ST7735R_DISPOFF_CMD

uint8_t ST7735R_DISPOFF_CMD = 0x28

static

DISPOFF command.

Display off

Returns

0x28

Definition at line 139 of file st7735r.h.

ST7735R_DISPON_CMD

uint8_t ST7735R_DISPON_CMD = 0x29

static

DISPON command.

Display on

Returns

0x29

Definition at line 146 of file st7735r.h.

ST7735R_GAMSET_CMD

uint8_t ST7735R_GAMSET_CMD = 0x26

static

GAMSET command.

Gamma curve select

Returns

0x26

Definition at line 132 of file st7735r.h.

ST7735R_IDMOFF_CMD

uint8_t ST7735R_IDMOFF_CMD = 0x38

static

IDMOFF command.

Idle mode off

Returns

0x38

Definition at line 216 of file st7735r.h.

ST7735R_IDMON_CMD

uint8_t ST7735R_IDMON_CMD = 0x39

static

IDMON command.

Idle mode on

Returns

0x39

Definition at line 223 of file st7735r.h.

ST7735R_INVOFF_CMD

uint8_t ST7735R_INVOFF_CMD = 0x20

static

INVOFF command.

Display inversion off

Returns

0x20

Definition at line 118 of file st7735r.h.

ST7735R_INVON_CMD

uint8_t ST7735R_INVON_CMD = 0x21

static

INVON command.

Display inversion on

Returns

0x21

Definition at line 125 of file st7735r.h.

ST7735R_MADCTL_CMD

uint8_t ST7735R_MADCTL_CMD = 0x36

static

MADCTL command.

Memory data access control

Returns

0x36

Definition at line 209 of file st7735r.h.

ST7735R_NOP_CMD

uint8_t ST7735R_NOP_CMD = 0x00

static

NOP command.

This command is empty command.

Returns

0x00

Definition at line 27 of file st7735r.h.

ST7735R_NORON_CMD

uint8_t ST7735R_NORON_CMD = 0x13

static

NORON command.

Partial off (Normal)

Returns

0x13

Definition at line 111 of file st7735r.h.

ST7735R_PTLAR_CMD

uint8_t ST7735R_PTLAR_CMD = 0x30

static

PTLAR command.

Partial start/end address set

Returns

0x30

Definition at line 188 of file st7735r.h.

ST7735R_PTLON_CMD

uint8_t ST7735R_PTLON_CMD = 0x12

static

PTLON command.

Partial mode on

Returns

0x12

Definition at line 104 of file st7735r.h.

ST7735R_RAMRD_CMD

uint8_t ST7735R_RAMRD_CMD = 0x2E

static

RAMRD command.

Memory read

Returns

0x2E

Definition at line 181 of file st7735r.h.

ST7735R_RAMWR_CMD

uint8_t ST7735R_RAMWR_CMD = 0x2C

static

RAMWR command.

Memory write

Returns

0x2C

Definition at line 167 of file st7735r.h.

ST7735R_RASET_CMD

uint8_t ST7735R_RASET_CMD = 0x2B

static

RASET command.

Row address set

Returns

0x2B

Definition at line 160 of file st7735r.h.

ST7735R_RDDCOLMOD_CMD

uint8_t ST7735R_RDDCOLMOD_CMD = 0xC0

static

RDDCOLMOD command.

Read Display Pixel

Returns

0xC0

Definition at line 69 of file st7735r.h.

ST7735R_RDDID_CMD

uint8_t ST7735R_RDDID_CMD = 0x04

static

RDDID command.

Read Display ID

Returns

0x04

Definition at line 41 of file st7735r.h.

ST7735R_RDDIM_CMD

uint8_t ST7735R_RDDIM_CMD = 0xD0

static

RDDIM command.

Read Display Image

Returns

0xD0

Definition at line 76 of file st7735r.h.

ST7735R_RDDMADCTL_CMD

uint8_t ST7735R_RDDMADCTL_CMD = 0xB0

static

RDDMADCTL command.

Read Display

Returns

0xB0

Definition at line 62 of file st7735r.h.

ST7735R_RDDPM_CMD

uint8_t ST7735R_RDDPM_CMD = 0xA0

static

RDDPM command.

Read Display Power

Returns

0xA0

Definition at line 55 of file st7735r.h.

ST7735R_RDDSM_CMD

uint8_t ST7735R_RDDSM_CMD = 0xE0

static

RDDSM command.

Read Display Signal

Returns

0xE0

Definition at line 83 of file st7735r.h.

ST7735R_RDDST_CMD

uint8_t ST7735R_RDDST_CMD = 0x09

static

RDDST command.

Read Display Status

Returns

0x09

Definition at line 48 of file st7735r.h.

ST7735R_RDID1_CMD

uint8_t ST7735R_RDID1_CMD = 0xDA

static

RDID1 command.

Read ID1

Returns

0xDA

Definition at line 237 of file st7735r.h.

ST7735R_RDID2_CMD

uint8_t ST7735R_RDID2_CMD = 0xDB

static

RDID2 command.

Read ID2

Returns

0xDB

Definition at line 244 of file st7735r.h.

ST7735R_RDID3_CMD

uint8_t ST7735R_RDID3_CMD = 0xDC

static

RDID3 command.

Read ID3

Returns

0xDC

Definition at line 251 of file st7735r.h.

ST7735R_RGBSET_CMD

uint8_t ST7735R_RGBSET_CMD = 0x2D

static

RGBSET command.

LUT for 4k,65k,262k color

Returns

0x2D

Definition at line 174 of file st7735r.h.

ST7735R_SLPIN_CMD

uint8_t ST7735R_SLPIN_CMD = 0x10

static

SLPIN command.

Sleep in & booster off

Returns

0x10

Definition at line 90 of file st7735r.h.

ST7735R_SLPOUT_CMD

uint8_t ST7735R_SLPOUT_CMD = 0x11

static

SLPOUT command.

Sleep out & booster on

Returns

0x11

Definition at line 97 of file st7735r.h.

ST7735R_SWRESET_CMD

uint8_t ST7735R_SWRESET_CMD = 0x01

static

SWRESET command.

Software reset

Returns

0x01

Definition at line 34 of file st7735r.h.

ST7735R_TEOFF_CMD

uint8_t ST7735R_TEOFF_CMD = 0x34

static

TEOFF command.

Tearing effect line off

Returns

0x34

Definition at line 195 of file st7735r.h.

ST7735R_TEON_CMD

uint8_t ST7735R_TEON_CMD = 0x35

static

TEON command.

Tearing effect mode set & on

Returns

0x35

Definition at line 202 of file st7735r.h.