Red, green, blue and white, but can clearly see the refresh process, could you tell me how to do can't see the refresh

CodePudding user response:

Chip M0, frequency of 48 m, brush a screen about 2 seconds, using IO mouth simulation spi

CodePudding user response:

reference 1st floor weixin_40294928 response:

chip M0, dominant frequency of 48 m, brush a screen about 2 seconds, using IO mouth simulation spi

Use hardware spi + DMA transfers, IO simulation is too slow

CodePudding user response:

Acuity

reference 2 floor - response:

Quote: refer to 1st floor weixin_40294928 response:

Chip M0, frequency of 48 m, brush a screen about 2 seconds, using IO mouth simulation spi

Use hardware spi + DMA transfers, IO simulation too slow

try it tomorrow

CodePudding user response:

Frame rate is too low, high frame rate Settings

CodePudding user response:

Look at eight or nine when SPI communication

CodePudding user response:

reference 5 floor jgj58 reply:

look at eight or nine when SPI communication

8 bits

CodePudding user response:

I also am simulation spi chip l4 80 m 3.2 inch TFT brush a screen for a second feel is too slow

CodePudding user response:

SPI screen to use the CPU speed is faster, or refresh is very slow, I use STM '32 f4 can feel refresh

CodePudding user response:

I am using 480 x320