The method of embedded blue bridge cup to solve the conflict between LED and LCD pin

Open the H file of LCD and

find 3 codes about the operation of LCD writing

void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue);
void LCD_WriteRAM_Prepare(void);
void LCD_WriteRAM(u16 RGB_Code);

Then add this sentence at the beginning of each function

	u16 PinC_out = GPIOC->ODR;

Add at the end

	GPIOC->ODR =PinC_out;

Get it done

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But later I found that this method did not turn off the light and I do
n’t know Where is the problem, stay here first