static uint8_t u8g_com_arduino_t6963_read(u8g_t *u8g)
{
uint8_t val = 0;
u8g_com_arduino_digital_write(u8g, U8G_PI_RD, 0);
u8g_MicroDelay(); /* 150ns, reference: t6963 datasheet */
U8G_ATOMIC_START();
/* only read bits 0, 1 and 3 */
if ( (*u8g_input_data_port[3] & u8g_data_mask[3]) != 0 )
val++;
val <<= 1;
val <<= 1;
if ( (*u8g_input_data_port[1] & u8g_data_mask[1]) != 0 )
val++;
val <<= 1;
if ( (*u8g_input_data_port[0] & u8g_data_mask[0]) != 0 )
val++;
U8G_ATOMIC_END();
u8g_com_arduino_digital_write(u8g, U8G_PI_RD, 1);
u8g_MicroDelay(); /* 10ns, reference: t6963 datasheet */
return val;
}
static void u8g_com_arduino_t6963_write(u8g_t *u8g, uint8_t val)
{
U8G_ATOMIC_START();
u8g_com_arduino_t6963_write_data_pin( 0, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 1, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 2, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 3, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 4, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 5, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 6, val&1 );
val >>= 1;
u8g_com_arduino_t6963_write_data_pin( 7, val&1 );
val >>= 1;
U8G_ATOMIC_END();
u8g_com_arduino_digital_write(u8g, U8G_PI_WR, 0);
u8g_MicroDelay(); /* 80ns, reference: t6963 datasheet */
u8g_com_arduino_digital_write(u8g, U8G_PI_WR, 1);
u8g_MicroDelay(); /* 10ns, reference: t6963 datasheet */
}
static void i2c_100KHz_delay(void)
{
/*
1x u8g_MicroDelay() ca. 130KHz
2x u8g_MicroDelay() ca. 80KHz
*/
u8g_MicroDelay();
u8g_MicroDelay();
}
uint8_t u8g_dev_ssd1322_nhd31oled_bw_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
{
switch(msg)
{
case U8G_DEV_MSG_INIT:
u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_300NS);
u8g_WriteEscSeqP(u8g, dev, u8g_dev_ssd1322_1bit_nhd_312_init_seq);
break;
case U8G_DEV_MSG_STOP:
break;
case U8G_DEV_MSG_PAGE_NEXT:
{
uint8_t i;
u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
uint8_t *p = pb->buf;
u8g_uint_t cnt;
cnt = pb->width;
cnt >>= 3;
for( i = 0; i < pb->p.page_height; i++ )
{
u8g_dev_ssd1322_1bit_prepare_row(u8g, dev, i); /* this will also enable chip select */
#if !defined(U8G_16BIT)
u8g_WriteByte(u8g, dev, 0x0ff);
u8g_WriteByte(u8g, dev, 0x0ff);
#endif
u8g_WriteSequenceBWTo16GrDevice(u8g, dev, cnt, p);
#if !defined(U8G_16BIT)
u8g_WriteByte(u8g, dev, 0x0ff);
u8g_WriteByte(u8g, dev, 0x0ff);
#endif
u8g_MicroDelay(); // for DUE?
u8g_SetChipSelect(u8g, dev, 0);
p+=cnt;
}
}
break;
case U8G_DEV_MSG_CONTRAST:
u8g_SetChipSelect(u8g, dev, 1);
u8g_SetAddress(u8g, dev, 0); /* instruction mode */
u8g_WriteByte(u8g, dev, 0x081);
u8g_SetAddress(u8g, dev, 1); /* data mode */
u8g_WriteByte(u8g, dev, (*(uint8_t *)arg) >> 1);
u8g_MicroDelay(); // for DUE?
u8g_SetChipSelect(u8g, dev, 0);
break;
case U8G_DEV_MSG_SLEEP_ON:
u8g_WriteEscSeqP(u8g, dev, u8g_dev_ssd13xx_sleep_on);
return 1;
case U8G_DEV_MSG_SLEEP_OFF:
u8g_WriteEscSeqP(u8g, dev, u8g_dev_ssd13xx_sleep_off);
return 1;
}
return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg);
}
void u8g_com_arduino_parallel_write(u8g_t *u8g, uint8_t val)
{
u8g_com_arduino_digital_write(u8g, U8G_PI_D0, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D1, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D2, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D3, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D4, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D5, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D6, val&1);
val >>= 1;
u8g_com_arduino_digital_write(u8g, U8G_PI_D7, val&1);
/* EN cycle time must be 1 micro second, digitalWrite is slow enough to do this */
u8g_Delay(1);
u8g_com_arduino_digital_write(u8g, U8G_PI_EN, HIGH);
u8g_Delay(1);
u8g_MicroDelay(); /* delay by 1000ns, reference: ST7920: 140ns, SBN1661: 100ns */
u8g_com_arduino_digital_write(u8g, U8G_PI_EN, LOW);
u8g_10MicroDelay(); /* ST7920 commands: 72us */
u8g_Delay(2);
}
void u8g_com_arduino_fast_parallel_write(u8g_t *u8g, uint8_t val)
{
U8G_ATOMIC_START();
u8g_com_arduino_fast_write_data_pin( 0, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 1, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 2, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 3, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 4, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 5, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 6, val&1 );
val >>= 1;
u8g_com_arduino_fast_write_data_pin( 7, val&1 );
val >>= 1;
U8G_ATOMIC_END();
/* EN cycle time must be 1 micro second */
u8g_com_arduino_digital_write(u8g, U8G_PI_EN, HIGH);
u8g_MicroDelay(); /* delay by 1000ns, reference: ST7920: 140ns, SBN1661: 100ns */
u8g_com_arduino_digital_write(u8g, U8G_PI_EN, LOW);
u8g_10MicroDelay(); /* ST7920 commands: 72us */
u8g_10MicroDelay(); /* ST7920 commands: 72us */
}
//*************************************************************************************
//*************************************************************************************
uint8_t u8g_com_uart_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
{
switch(msg)
{
case U8G_COM_MSG_STOP:
//STOP THE DEVICE
break;
case U8G_COM_MSG_INIT:
//INIT HARDWARE INTERFACES, TIMERS, GPIOS...
u8g_Delay(500);
init_UART3();
//init_LCD(); //set 8 bit etc
break;
case U8G_COM_MSG_ADDRESS:
//SWITCH FROM DATA TO COMMAND MODE (arg_val == 0 for command mode)
// define cmd (arg_val = 0) or data mode (arg_val = 1)
// cmd -
if (arg_val == 0)
{
control = ST7920_CMD;
}
else
{
control = ST7920_DATA;
}
break;
case U8G_COM_MSG_RESET:
//TOGGLE THE RESET PIN ON THE DISPLAY BY THE VALUE IN arg_val
break;
case U8G_COM_MSG_WRITE_BYTE:
//WRITE BYTE TO DEVICE
UART_write_byte(control << 1); //shift RS left, RW == 0 == write
UART_write_byte(arg_val);
u8g_MicroDelay();
break;
case U8G_COM_MSG_WRITE_SEQ:
case U8G_COM_MSG_WRITE_SEQ_P:
//WRITE A SEQUENCE OF BYTES TO THE DEVICE
{
register uint8_t *ptr = arg_ptr;
//UART_write_byte((1 << 2) | (control << 1)); //0x04 for initialization of byte sequence, shift RS left, RW == 0 == write
while( arg_val > 0 )
{
UART_write_byte(control << 1); //shift RS left, RW == 0 == write
UART_write_byte( *ptr);
ptr++;
arg_val--;
}
}
break;
}
return 1;
}
uint8_t u8g_com_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
{
switch (msg) {
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_INIT:
// init spi and ports
u8g_MicroDelay();
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
//u8g_10MicroDelay();
GPIO_SET_PIN_VAL(LCD_A0, arg_val);
u8g_MicroDelay();
break;
case U8G_COM_MSG_CHIP_SELECT:
GPIO_SET_PIN_VAL(LCD_CSB, !arg_val);
u8g_MicroDelay();
break;
case U8G_COM_MSG_RESET:
GPIO_SET_PIN_VAL(LCD_RSTB, arg_val);
u8g_MicroDelay();
break;
case U8G_COM_MSG_WRITE_BYTE:
spi_out(arg_val);
u8g_MicroDelay();
break;
case U8G_COM_MSG_WRITE_SEQ:
case U8G_COM_MSG_WRITE_SEQ_P: {
register uint8_t *ptr = arg_ptr;
while (arg_val > 0) {
spi_out(*ptr++);
arg_val--;
}
}
break;
}
return 1;
}
static void u8g_com_arduino_do_shift_out_msb_first(uint8_t val)
{
uint8_t cnt = 8;
do
{
if ( val & 128 )
digitalWrite(u8g_data_pin, HIGH);
else
digitalWrite(u8g_data_pin, LOW);
val <<= 1;
//u8g_MicroDelay();
digitalWrite(u8g_clock_pin, LOW);
cnt--;
u8g_MicroDelay();
digitalWrite(u8g_clock_pin, HIGH);
u8g_MicroDelay();
} while( cnt != 0 );
}
static void u8g_com_arduino_do_shift_out_msb_first(uint8_t val)
{
uint8_t i = 8;
do
{
if ( val & 128 )
u8g_digital_write_sam_high(u8g_sam_data_pin);
else
u8g_digital_write_sam_low(u8g_sam_data_pin);
val <<= 1;
//u8g_MicroDelay();
u8g_digital_write_sam_high(u8g_sam_clock_pin);
u8g_MicroDelay();
u8g_digital_write_sam_low(u8g_sam_clock_pin);
u8g_MicroDelay();
i--;
} while( i != 0 );
}
void u8g_arduino_sw_spi_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val)
{
uint8_t i = 8;
do
{
if ( val & 128 )
digitalWrite(dataPin, HIGH);
else
digitalWrite(dataPin, LOW);
val <<= 1;
u8g_MicroDelay(); /* 23 Sep 2012 */
//delay(1);
digitalWrite(clockPin, HIGH);
u8g_MicroDelay(); /* 23 Sep 2012 */
//delay(1);
digitalWrite(clockPin, LOW);
u8g_MicroDelay(); /* 23 Sep 2012 */
//delay(1);
i--;
} while( i != 0 );
}
static void u8g_com_arduino_do_shift_out_msb_first(uint8_t val)
{
uint8_t cnt = 8;
U8G_ATOMIC_START();
do
{
if ( val & 128 )
*dog_outData |= dog_bitData;
else
*dog_outData &= dog_bitNotData;
val <<= 1;
//u8g_MicroDelay();
//*dog_outClock |= dog_bitClock;
*dog_outClock &= dog_bitNotClock;
cnt--;
u8g_MicroDelay();
//*dog_outClock &= dog_bitNotClock;
*dog_outClock |= dog_bitClock;
u8g_MicroDelay();
} while( cnt != 0 );
U8G_ATOMIC_END();
}
uint8_t u8g_com_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
{
switch(msg)
{
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_INIT:
u8g_MicroDelay();
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
u8g_10MicroDelay();
if (arg_val == 0)
{
control = 0;
}
else
{
control = 0x40;
}
break;
case U8G_COM_MSG_WRITE_BYTE:
{
uint8_t buffer[2];
buffer[0] = control;
buffer[1] = arg_val;
HAL_I2C_Master_Transmit(&I2C_HANDLER, DEVICE_ADDRESS, (uint8_t*) buffer, 2, I2C_TIMEOUT);
}
break;
case U8G_COM_MSG_WRITE_SEQ:
case U8G_COM_MSG_WRITE_SEQ_P:
{
uint8_t buffer[DATA_BUFFER_SIZE];
uint8_t *ptr = arg_ptr;
buffer[0] = control;
for (int i = 1; i <= arg_val; i++)
{
buffer[i] = *(ptr++);
}
HAL_I2C_Master_Transmit(&I2C_HANDLER, DEVICE_ADDRESS, (uint8_t *)buffer, arg_val, I2C_TIMEOUT);
}
break;
}
return 1;
}
uint8_t u8g_com_hw_i2c_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
{
register uint8_t *ptr = arg_ptr;
switch(msg)
{
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_INIT:
init_i2c();
//I2C_WrReg(0x80, 0xAE);
//I2C_WrReg(0x80, 0x8D);
//I2C_WrReg(0x80, 0x14);
//I2C_WrReg(0x80, 0xAF);
u8g_MicroDelay();
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
if(arg_val == 0){
control = 0; //Send a Command (D/C# pin is low)
}
else{
control = 0x40; //send data
}
u8g_10MicroDelay();
break;
case U8G_COM_MSG_CHIP_SELECT:
break;
case U8G_COM_MSG_RESET:
break;
case U8G_COM_MSG_WRITE_BYTE:
I2C_WrReg(control, arg_val);
//u8g_i2c_start(0x78);
//u8g_i2c_send_byte(arg_val);
//u8g_i2c_stop();
u8g_MicroDelay();
break;
case U8G_COM_MSG_WRITE_SEQ:
case U8G_COM_MSG_WRITE_SEQ_P:
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY) == SET);
I2C_TransferHandling(I2C1, 0x78, 1, I2C_Reload_Mode, I2C_Generate_Start_Write);
//Ensure the transmit interrupted flag is set
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TXIS) == RESET);
//Send the address of the register we wish to write to
I2C_SendData(I2C1, control);
//Ensure that the transfer complete reload flag is Set, essentially a standard
//TC flag
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TCR) == RESET);
I2C_TransferHandling(I2C1, 0x78, arg_val+1, I2C_AutoEnd_Mode, I2C_No_StartStop);
//Again, wait until the transmit interrupted flag is set
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TXIS) == RESET);
//Send the value you wish you write to the register
while( arg_val > 0 )
{
I2C_SendData(I2C1, *ptr++);
arg_val--;
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TXIS) == RESET);
//Wait for the stop flag to be set indicating a stop condition has been sent
}
I2C_TransferHandling(I2C1, 0x78, 0, I2C_AutoEnd_Mode, I2C_Generate_Stop);
//while(I2C_GetFlagStatus(I2C1,I2C_FLAG_STOPF) == RESET);
//I2C_ClearFlag(I2C1, I2C_FLAG_STOPF);
delay_micro_seconds(100);
//u8g_MicroDelay();
break;
}
return 1;
}
uint8_t u8g_com_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
{
switch(msg)
{
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_INIT:
if ( arg_val <= U8G_SPI_CLK_CYCLE_50NS )
{
spi_init(SPI_BAUDRATEPRESCALER_2);
}
else if ( arg_val <= U8G_SPI_CLK_CYCLE_300NS )
{
spi_init(SPI_BAUDRATEPRESCALER_4);
}
else if ( arg_val <= U8G_SPI_CLK_CYCLE_400NS )
{
spi_init(SPI_BAUDRATEPRESCALER_4);
}
else
{
spi_init(SPI_BAUDRATEPRESCALER_8);
}
u8g_MicroDelay();
break;
case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
u8g_10MicroDelay();
set_gpio_level(LCD_CD_PIN, arg_val);
u8g_10MicroDelay();
break;
case U8G_COM_MSG_CHIP_SELECT:
if ( arg_val == 0 )
{
/* disable */
uint8_t i;
/* this delay is required to avoid that the display is switched off too early --> DOGS102 with LPC1114 */
for( i = 0; i < 5; i++ )u8g_10MicroDelay();
set_gpio_level(LCD_CS_PIN, 1);
}
else
{
/* enable */
set_gpio_level(LCD_CS_PIN, 0);
}
u8g_MicroDelay();
break;
case U8G_COM_MSG_RESET:
set_gpio_level(LCD_RST_PIN, arg_val);
u8g_10MicroDelay();
break;
case U8G_COM_MSG_WRITE_BYTE:
spi_out(arg_val);
u8g_MicroDelay();
break;
case U8G_COM_MSG_WRITE_SEQ:
case U8G_COM_MSG_WRITE_SEQ_P:
{
register uint8_t *ptr = arg_ptr;
while( arg_val > 0 )
{
spi_out(*ptr++);
arg_val--;
}
}
break;
}
return 1;
}
