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71
Customer Projects / Re: New Support library for FTDI Screen New Haven Display
« Last post by Paul_B on March 09, 2018, 08:20:27 AM »
Hi Lightcalamer! Welcome to the Forum  ;)

Brilliant, thank you for sharing your code it will definitely help others.

Best Regards,

Paul B.



73
Customer Projects / New Support library for FTDI Screen Newhaven Display
« Last post by lightcalamar on March 08, 2018, 05:01:18 PM »
Hello long ago, a new team like these screens with FTDI chip like FT81x. Our Team called Team; FT81xmania.com Us web site; https://ft81xmania.com

We give support in languages; English, Spanish and French

We, and always thank the author of the Gameduino library called James Bowman http://excamera.com/sphinx/gameduino3/, we have for some time made and modified this library to work on other MCUs, other MCUs like Arduino  [All boards], Teensy 3.x, ESP8266, ESP32, STM32F1x, STM32F4x and now in STM32F7x

The chip-based screens of FTDI, all work.

Today I receive my order made on Sunday March 4 and receive today March 8, here a first test;
(Only 4 days to Spain !!!)

Video my Newhaven Dispay model; http://www.newhavendisplay.com/nhd70800480ftcsxvctp-p-9577.html  this video ; https://www.youtube.com/watch?v=pzUofNYXnqs

Our Team have a space, this space will be called; https://ft81xmania.com/comunidad/

All repositories Team FT81xmania.com for screen on chip based FTDI with library;

1/ https://github.com/Ft81xMania
2/ https://github.com/lightcalamar

New greetings to the entire NHD community  :)

74
Graphic LCDs / NHD-12864-WX serial mode
« Last post by j.campanelli on March 08, 2018, 02:24:27 PM »
Hi, Has anyone used the NHD-12864-WX in serial mode?
We cannot seem to get this to work.
We had no success with customer service.

I am curious to see if anyone has had success with this.
Thank You,
75
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« Last post by Paul_B on March 06, 2018, 08:26:50 AM »
To verify please check the datasheet for the I2C devices on your PCB  ;)

On the NHD-0420CW-AY3 module there is an address-select line (Pin 4). For troubleshooting purposes you can try to tie the address-select line (Pin 4) HIGH 3.3V. Please note that you will probably have to cut a pin / trace since your schematic shows it tied to GND. Finally, be sure to update the displays I2C Slave address to 0x3D in your software.

Disclaimer: Modified product will void warranty.
76
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« Last post by arrgon on March 06, 2018, 02:39:50 AM »
Thanks, I found this in my code :

Code: [Select]
/** @brief Read sectors protection registers op-code */
#define FLASH_OPCODE_SECTOR_READPROTECT 0x3C

I don't know if its a conflicting address with the I2C slaves
Code: [Select]
/** @brief Display I2C Slave address, in 7-bit form: 0x3C if SA0=LOW, 0x3D if SA0=HIGH */
const   uint8_t     SLAVE2W = 0x3C;

Thanks a lot
77
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« Last post by Paul_B on March 05, 2018, 10:30:25 AM »
Can you confirm that the I2C slaves do not have conflicting addresses?

Thanks!
78
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« Last post by arrgon on March 05, 2018, 10:07:05 AM »
Thank you very much for helping me !

I already use the i2c for external memory Eeprom so the timing has been checked and works for the external memory.


You can see the value of pull-up resistors for SCL and SDA lines on the picture.

Thank you again
79
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« Last post by Paul_B on March 05, 2018, 09:49:46 AM »
Hey Arrgon,

What value pull-up resistors do you have on the SCL and SDA lines?
 
Has the timing been verified on an oscilloscope?
80
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« Last post by arrgon on March 05, 2018, 09:35:38 AM »
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