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olikraus / u8g2

U8glib library for monochrome displays, version 2
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Constructor call for PCD8544 error! #406

Closed Yedwa closed 6 years ago

Yedwa commented 6 years ago

Hi There

I have been trying to get the nokia 5110 lcd to work without any success. I have tried all the constructor call for this display and I get the error as shown:

HelloWorld:25: error: 'u8g2' was not declared in this scope u8g2.firstPage(); ^ exit status 1 'U8G2_pcd8544_84X48_F_4W_HW_SPI' does not name a type

I would appreciate assistance.

Regards,Yedwa

olikraus commented 6 years ago 
U8G2_PCD8544_84X48_F_4W_HW_SPI
Yedwa commented 6 years ago

Hi Olivier

I have corrected the letters, the error when compiling was not resolved and below is the constructor I used.

U8G2_PCD8544_84X48_F_4W_HW_SPI u8g2(U8G2_R0, / clock=/ 13, / data=/ 11, / cs=/ 10, / dc=/ 9, / reset=/ 8);

It comes up with this error:

exit status 1 'U8G2_PCD8544_84X48_F_4W_HW_SPI' does not name a type

Thank you for your assistance

neu-rah commented 6 years ago

the following is working for me and for that lcd:

  #define U8_DC 9
  #define U8_CS 8
  #define U8_RST 7
  U8G2_PCD8544_84X48_1_4W_HW_SPI u8g2(U8G2_R0, U8_CS, U8_DC , U8_RST);
olikraus commented 6 years ago

Yes, either use

U8G2_PCD8544_84X48_F_4W_HW_SPI u8g2(U8G2_R0, / cs=/ 10, / dc=/ 9, / reset=*/ 8);

or

U8G2_PCD8544_84X48_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=/ 13, / data=/ 11, / cs=/ 10, / dc=/ 9, / reset=*/ 8);

This is documented here: https://github.com/olikraus/u8g2/wiki/u8g2setupcpp#pcd8544-84x48

Yedwa commented 6 years ago

Thank you very much Olivier and Neu-Rah.