st7920_t Struct Reference

Handler of ST7920. Each display must need your own handler. Yes, this library supports multiples displays. More...

#include <st7920.h>

Data Fields
st7920_mode_e	Mode
struct {
fxnDelay_ms   delayMs
	Pointer to function to execute a milliseconds delay. More...
fxn7920_mtxLock   mtxLock
	Pointer to function that waits and lock the mutex. More...
fxn7920_mtxunlock   mtxUnlock
	Pointer to function that will unlock the mutex. More...
fxn1306spi_cs   spiCs
	Pointer to function that controls the Chip Select pin of ST7920. More...
fxn1306spi_reset   spiReset
	Pointer to function that controls the Reset pin of ST7920. More...
fxn1306spi_write   spiWrite
	Pointer to function that write data over SPI. More...
}	fxn
struct {
bool   bInitialized
uint32_t   u32FrameSize
uint8_t *   pu8FrameBuffer
uint32_t   u32Width
uint32_t   u32Heigth
}	_intern

Detailed Description

Handler of ST7920. Each display must need your own handler. Yes, this library supports multiples displays.

Precondition

A good practice is to initialize this handler with all parameters as zero.

Field Documentation

[struct]

struct { ... } st7920_t::_intern

bInitialized

bool st7920_t::bInitialized

delayMs

fxnDelay_ms st7920_t::delayMs

Pointer to function to execute a milliseconds delay.

[struct]

struct { ... } st7920_t::fxn

Mode

st7920_mode_e st7920_t::Mode

mtxLock

fxn7920_mtxLock st7920_t::mtxLock

Pointer to function that waits and lock the mutex.

mtxUnlock

fxn7920_mtxunlock st7920_t::mtxUnlock

Pointer to function that will unlock the mutex.

pu8FrameBuffer

uint8_t* st7920_t::pu8FrameBuffer

spiCs

fxn1306spi_cs st7920_t::spiCs

Pointer to function that controls the Chip Select pin of ST7920.

Note

Mandatory when display is on ST7920_MODE_SPI.

spiReset

fxn1306spi_reset st7920_t::spiReset

Pointer to function that controls the Reset pin of ST7920.

Note

Mandatory when display is on ST7920_MODE_SPI.

spiWrite

fxn1306spi_write st7920_t::spiWrite

Pointer to function that write data over SPI.

Note

Mandatory when display is on ST7920_MODE_SPI.

Precondition

Configure the SPI Peripheral in Mode 1 (CPOL=0 and CPHA=1).

u32FrameSize

uint32_t st7920_t::u32FrameSize

u32Heigth

uint32_t st7920_t::u32Heigth

u32Width

uint32_t st7920_t::u32Width

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The documentation for this struct was generated from the following file:

• src/drivers/st7920/st7920.h