esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

jr-test
Posts: 100
Joined: Mon Aug 23, 2021 3:04 am

esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

Postby jr-test » Fri Dec 31, 2021 6:51 am

esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

ESP_morris
Posts: 290
Joined: Wed Sep 05, 2018 6:23 am

Re: esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

Postby ESP_morris » Mon Jan 03, 2022 9:43 am

受限于PSRAM带宽,8线PSRAM, 80MHz模式下,PCLK大约可以设置到10MHz左右

jr-test
Posts: 100
Joined: Mon Aug 23, 2021 3:04 am

Re: esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

Postby jr-test » Tue Jan 04, 2022 12:36 am

ESP_morris wrote:
Mon Jan 03, 2022 9:43 am
受限于PSRAM带宽,8线PSRAM, 80MHz模式下,PCLK大约可以设置到10MHz左右
那如何设置其他的参数,提高屏幕的刷新率呢?

ESP_morris
Posts: 290
Joined: Wed Sep 05, 2018 6:23 am

Re: esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

Postby ESP_morris » Tue Jan 04, 2022 2:04 am

1. menuconfig中对PSRAM的时钟速率可以调高
2. 使用8线的PSRAM

jr-test
Posts: 100
Joined: Mon Aug 23, 2021 3:04 am

Re: esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

Postby jr-test » Tue Jan 04, 2022 3:22 am

ESP_morris wrote:
Tue Jan 04, 2022 2:04 am
1. menuconfig中对PSRAM的时钟速率可以调高
2. 使用8线的PSRAM
试过了,还是困顿,fps为0,我驱动的rgb屏是st7701s,需要60hz的帧率,pclk只能是10mhz,无论如何设置屏参proch都无法达到60hz的帧率,是不是esp32-s3不适合通过rgb接口驱动st7701s呢?

wangyz1997
Posts: 8
Joined: Wed Nov 10, 2021 9:27 am

Re: esp32-s3 驱动rgb屏像素时钟频率pclk可设置多大?

Postby wangyz1997 » Sun Jan 09, 2022 3:55 am

ESP_morris wrote:
Mon Jan 03, 2022 9:43 am
受限于PSRAM带宽,8线PSRAM, 80MHz模式下,PCLK大约可以设置到10MHz左右
在较高的PCLK下,PSRAM占用的SPI0带宽是否会对芯片XIP的效率产生较大的影响?

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