About ausera uirwaij

ausera uirwaij · 2022-11-11

Hi, I have tested my 4.3" TFT-LCD by write the whole screen with one color blue or orange freshing with about 34hz, but it blinks.the test code run in main function: int ii=0; int cl =0x0;//color while(1) { if(ii==0) { ii =1; ...

ausera uirwaij · 2022-11-03

after executing constructors:m_Handle and bbb both with int type are not what I write, it seem it's memory alignment problem but all related class has 32bits int type member variables.And I define g_pointer=(int*)m_Handle, the address g_pointer sav...

ausera uirwaij · 2022-05-27

my read flash reading is bellowing:unsigned short * pAddr = (unsigned short * )0x08004000;unsigned short read_value=0;for(int i=0;i<10;i++){read_value = *(pAddr +i);printf(.....,read_value );}---------------I add read_value to watch window ,however...

ausera uirwaij · 2022-05-25

Hi, i'm using stm32f429 to develop i2c communication, the mcu cannot generate START signal after running a few minutes but the SDA and SCL all high, I add the CR1 register to watch and find the CR1 cannot be modified after calling the bellowing: br...

ausera uirwaij · 2022-05-07

As showed in captures, the cloce source of cortex system timer is AHB/8 but not core clock and the frequency of systick is 22.5Mhz. However the generated clock source is Processor clock (AHB) not AHB/8.Is this CUBEMX BUG ?? 0x07=0111bBit 2 CLKSOURCE...

ausera uirwaij · 2022-11-12

closed

ausera uirwaij · 2022-11-11

And, it should complete transmitting 2D data to LCD when DMA2D->CR 's DMA2D_CR_START is set? if so, could I begin another flushing operation immediately to wanted fresh rate? thank you.

ausera uirwaij · 2022-11-11

the manual of my tft-lcd displayer requires its LCD clock 8Mhz~12Mhz, and I set 10Mhz. I tried to improve and lower the clock frequency it has not too much effect. And the supplier of displayer ask me to work with 10Mhz. So could you let me know why ...

ausera uirwaij · 2022-11-11

I tried 1000ms delay it seems work, but I need 40hz fresh rate at least. I check the LTDC guide which writes:And total width = 523,total height = 286, so the refresh rate can reach 66.8hz when LTDC clock is 10Mhz, my tft-lcd can work between 8Mhz~1...

ausera uirwaij · 2022-05-27

Thank you Amel,I read this sheet when I encountered this problem. But just software reseting the I2C as the sheet said doesn't solve my problem .

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4.3" TFT-LCD always blinks using LTDC+ external SDRAM interfacing with FMC

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Re: 4.3" TFT-LCD always blinks using LTDC+ external SDRAM interfacing with FMC

Re: 4.3" TFT-LCD always blinks using LTDC+ external SDRAM interfacing with FMC

Re: 4.3" TFT-LCD always blinks using LTDC+ external SDRAM interfacing with FMC

Re: 4.3" TFT-LCD always blinks using LTDC+ external SDRAM interfacing with FMC

Re: F429 I2C bug