ST7735 display driver usage

Posted on March 07, 2018 at 08:10

Hi .

I have a LCD display with st7735 and wanted to use library included within STM32Cube_FW_F3_V1.8.0 package.

Unfortunately the lib seems to be written only for specific boards and while compiling the code I get errors:

st7735.c:241: undefined reference to `LCD_IO_WriteReg'

/st7735.c:323: undefined reference to `LCD_IO_WriteMultipleData'

Is there a way to run it or a lib that would suit to STM32Cube HAL?

This topic has been closed for replies.

ST Technical Moderator

Posted on March 07, 2018 at 10:21

Hi

Rad.Rad

‌,

Do you have already suitable driver for ST7735? If not, you find them under STM32Cube_FW_F3_V1.9.0\Drivers\BSP\Components\st77

This component is used in the demonstration provided for

STM32F303ZE-Nucleo, which is available under

STM32Cube_FW_F3_V1.9.0\Projects\STM32F303ZE-Nucleo\Demonstrations\Adafruit_LCD_1_8_SD_Joystick\Src\main.c.

You need to refer to this example and adapt for your need.

May I know with which hw will you be using this LCD display?

-Amel

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Associate II

Posted on March 21, 2018 at 15:20

Hi Amel,

Thanks for your reply.

I am using lib from: ...STM32Cube_FW_F3_V1.8.0\Projects\STM32F303RE-Nucleo\Demonstrations\Adafruit_LCD_1_8_SD_Joystick.

However as I wrote is seems to be written for a nucleo board specyfic and throws the following errors:

st7735.c:241: undefined reference to `LCD_IO_WriteReg'

/st7735.c:323: undefined reference to `LCD_IO_WriteMultipleData'

which I am not quite able to get over.

I am using Arduino TFT:

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