void Display_Init(void)
{
mraa_gpio_write(SCS, 1); //Select SHARP Display
mraa_spi_write(spi, MLCD_CM); //Clear SHARP Display
mraa_spi_write(spi, MLCD_TR); //Send Trailer
mraa_gpio_write(SCS, 0); //Deselect SHARP Display
}
static uint8_t spi_readwrite(const uint8_t aci_byte)
{
uint8_t reversed, ret;
reversed = mraa_spi_write (a_pins_local_ptr->m_spi, REVERSE_BITS (aci_byte));
ret = REVERSE_BITS (reversed);
return ret;
}
boolean Adafruit_STMPE610::begin() {
// hardware SPI
InitTransaction();
// SPI = mraa_spi_init(0); // which buss? will experment here...
SPI = mraa_spi_init_software_cs(0); // which buss? will experment here...
mraa_spi_frequency(SPI, 1000000);
mraa_spi_lsbmode(SPI, false);
mraa_spi_mode(SPI, MRAA_SPI_MODE0);
m_spiMode = MRAA_SPI_MODE0;
_gpioCS = mraa_gpio_init(_cs);
mraa_gpio_dir(_gpioCS, MRAA_GPIO_OUT);
CSHigh();
mraa_spi_write(SPI, 0x00);
// try mode0
if (getVersion() != 0x811) {
//Serial.println("try MODE1");
mraa_spi_frequency(SPI, 1000000);
mraa_spi_lsbmode(SPI, false);
mraa_spi_mode(SPI, MRAA_SPI_MODE1);
m_spiMode = MRAA_SPI_MODE1;
if (getVersion() != 0x811) {
return false;
}
}
writeRegister8(STMPE_SYS_CTRL1, STMPE_SYS_CTRL1_RESET);
delay(10);
for (uint8_t i=0; i<65; i++) {
readRegister8(i);
}
writeRegister8(STMPE_SYS_CTRL2, 0x0); // turn on clocks!
writeRegister8(STMPE_TSC_CTRL, STMPE_TSC_CTRL_XYZ | STMPE_TSC_CTRL_EN); // XYZ and enable!
//Serial.println(readRegister8(STMPE_TSC_CTRL), HEX);
writeRegister8(STMPE_INT_EN, STMPE_INT_EN_TOUCHDET);
writeRegister8(STMPE_ADC_CTRL1, STMPE_ADC_CTRL1_10BIT | (0x6 << 4)); // 96 clocks per conversion
writeRegister8(STMPE_ADC_CTRL2, STMPE_ADC_CTRL2_6_5MHZ);
writeRegister8(STMPE_TSC_CFG, STMPE_TSC_CFG_4SAMPLE | STMPE_TSC_CFG_DELAY_1MS | STMPE_TSC_CFG_SETTLE_5MS);
writeRegister8(STMPE_TSC_FRACTION_Z, 0x6);
writeRegister8(STMPE_FIFO_TH, 1);
writeRegister8(STMPE_FIFO_STA, STMPE_FIFO_STA_RESET);
writeRegister8(STMPE_FIFO_STA, 0); // unreset
writeRegister8(STMPE_TSC_I_DRIVE, STMPE_TSC_I_DRIVE_50MA);
writeRegister8(STMPE_INT_STA, 0xFF); // reset all ints
writeRegister8(STMPE_INT_CTRL, STMPE_INT_CTRL_POL_HIGH | STMPE_INT_CTRL_ENABLE);
return true;
}
void HAL_LCD_writeCommandOrData(uint16_t command)
{
//mraa_spi_write(spi, MLCD_WR); //Send Write Command
mraa_spi_write(spi, command);
//mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
/**
* Write single byte to the SPI device
*
* @param data the byte to send
* @return data received on the miso line or -1 in case of error
*/
int
writeByte(uint8_t data)
{
return mraa_spi_write(m_spi, (uint8_t) data);
}
void Display_Image(char image[])
{
static unsigned char line_no;
static unsigned int pixel;
mraa_gpio_write(SCS, 1); //Select SHARP Display
mraa_spi_write(spi, MLCD_WR); //Send Write Command
if(strcmp(image, "Uni_Freiburg") == 0)
{
for(line_no = 1; line_no <= MLCD_YRES; line_no++)
{
mraa_spi_write(spi, reverse_byte(line_no)); //Send Line Number
for(pixel = ((line_no - 1) * MLCD_BYTES); pixel < (line_no * MLCD_BYTES); pixel++)
{
mraa_spi_write(spi, BMP_Uni_Freiburg[pixel]); //Send Data
}
mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
}
else if(strcmp(image, "Intel_Atom") == 0)
{
for(line_no = 1; line_no <= MLCD_YRES; line_no++)
{
mraa_spi_write(spi, reverse_byte(line_no)); //Send Line Number
for(pixel = ((line_no - 1) * MLCD_BYTES); pixel < (line_no * MLCD_BYTES); pixel++)
{
mraa_spi_write(spi, BMP_Intel_Atom[pixel]); //Send Data
}
mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
}
else if(strcmp(image, "Nikola_Tesla") == 0)
{
for(line_no = 1; line_no <= MLCD_YRES; line_no++)
{
mraa_spi_write(spi, reverse_byte(line_no)); //Send Line Number
for(pixel = ((line_no - 1) * MLCD_BYTES); pixel < (line_no * MLCD_BYTES); pixel++)
{
mraa_spi_write(spi, BMP_Nikola_Tesla[pixel]); //Send Data
}
mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
}
else if(strcmp(image, "Albert_Einstein") == 0)
{
for(line_no = 1; line_no <= MLCD_YRES; line_no++)
{
mraa_spi_write(spi, reverse_byte(line_no)); //Send Line Number
for(pixel = ((line_no - 1) * MLCD_BYTES); pixel < (line_no * MLCD_BYTES); pixel++)
{
mraa_spi_write(spi, BMP_Albert_Einstein[pixel]); //Send Data
}
mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
}
else if(strcmp(image, "White_Tiger") == 0)
{
for(line_no = 1; line_no <= MLCD_YRES; line_no++)
{
mraa_spi_write(spi, reverse_byte(line_no)); //Send Line Number
for(pixel = ((line_no - 1) * MLCD_BYTES); pixel < (line_no * MLCD_BYTES); pixel++)
{
mraa_spi_write(spi, BMP_White_Tiger[pixel]); //Send Data
}
mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
}
else if(strcmp(image, "Wall_E") == 0)
{
for(line_no = 1; line_no <= MLCD_YRES; line_no++)
{
mraa_spi_write(spi, reverse_byte(line_no)); //Send Line Number
for(pixel = ((line_no - 1) * MLCD_BYTES); pixel < (line_no * MLCD_BYTES); pixel++)
{
mraa_spi_write(spi, BMP_Wall_E[pixel]); //Send Data
}
mraa_spi_write(spi, MLCD_TR); //Send Trailer
}
}
mraa_spi_write(spi, MLCD_TR); //Send last Trailer
mraa_gpio_write(SCS, 0); //Deselect SHARP Display
}
void Adafruit_STMPE610::spiOut(uint8_t x) {
// mraa_spi_frequency(SPI, 1000000);
// mraa_spi_mode(SPI, m_spiMode);
mraa_spi_write(SPI, x);
}
uint8_t Adafruit_STMPE610::spiIn() {
// Should be handled by the spi_begin calls
// mraa_spi_frequency(SPI, 1000000);
// mraa_spi_mode(SPI, m_spiMode);
return mraa_spi_write(SPI, 0x00);
}
