using namespace upm;
Lcm1602::Lcm1602(int bus_in, int addr_in) : I2CLcd (bus_in, addr_in) {
- maa_result_t error = MAA_SUCCESS;
+ mraa_result_t error = MRAA_SUCCESS;
usleep(50000);
expandWrite(LCD_BACKLIGHT);
* virtual area
* **************
*/
-maa_result_t
+mraa_result_t
Lcm1602::write (std::string msg) {
- maa_result_t error = MAA_SUCCESS;
+ mraa_result_t error = MRAA_SUCCESS;
for (std::string::size_type i = 0; i < msg.size(); ++i) {
error = send (msg[i], LCD_RS);
}
return error;
}
-maa_result_t
+mraa_result_t
Lcm1602::setCursor (int row, int column) {
- maa_result_t error = MAA_SUCCESS;
+ mraa_result_t error = MRAA_SUCCESS;
int row_addr[] = { 0x80, 0xc0, 0x14, 0x54};
uint8_t offset = ((column % 16) + row_addr[row]);
return send (LCD_CMD | offset, 0);
}
-maa_result_t
+mraa_result_t
Lcm1602::clear () {
return send(LCD_CLEARDISPLAY, 0);
}
-maa_result_t
+mraa_result_t
Lcm1602::home () {
return send(LCD_RETURNHOME, 0);
}
* private area
* **************
*/
-maa_result_t
+mraa_result_t
Lcm1602::send (uint8_t value, int mode) {
- maa_result_t ret = MAA_SUCCESS;
+ mraa_result_t ret = MRAA_SUCCESS;
uint8_t h = value & 0xf0;
uint8_t l = (value << 4) & 0xf0;
ret = write4bits(h | mode);
return ret;
}
-maa_result_t
+mraa_result_t
Lcm1602::write4bits(uint8_t value)
{
- maa_result_t ret = MAA_SUCCESS;
+ mraa_result_t ret = MRAA_SUCCESS;
ret = expandWrite(value);
ret = pulseEnable(value);
return ret;
}
-maa_result_t
+mraa_result_t
Lcm1602::expandWrite(uint8_t value)
{
uint8_t buffer = value | LCD_BACKLIGHT;
- return maa_i2c_write_byte(m_i2c_lcd_control, buffer);
+ return mraa_i2c_write_byte(m_i2c_lcd_control, buffer);
}
-maa_result_t
+mraa_result_t
Lcm1602::pulseEnable(uint8_t value)
{
- maa_result_t ret = MAA_SUCCESS;
+ mraa_result_t ret = MRAA_SUCCESS;
ret = expandWrite(value | LCD_EN);
usleep(1);
ret = expandWrite(value & ~LCD_EN);