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完成 #175

open

t507 电压域修改

Added by 余 顺 over 2 years ago. Updated about 1 month ago.

Status:
完成
Priority:
普通
Assignee:
-
Category:
引脚电压修改
Target version:
t507-ubuntu
Start date:
01/04/2023
Due date:
% Done:

0%

Estimated time:

Description

版型：pro-t507

系统：linux

需求：怎么修改对应的电压域，查看原理图
不了解电源部分例如下图这里标明 1V8 or 3V3，

是否可以软件配置选择 1V8 或 3V3
VCC-PG 对应的是 PMU 的哪个 LDO

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clipboard-202301042025-fz2fq.png (401 KB) clipboard-202301042025-fz2fq.png 余 顺, 01/04/2023 11:17 AM
clipboard-202301042028-mc581.png (30.1 KB) clipboard-202301042028-mc581.png 余 顺, 01/04/2023 11:19 AM
clipboard-202301042029-h7lo7.png (74.4 KB) clipboard-202301042029-h7lo7.png 余 顺, 01/04/2023 11:20 AM
clipboard-202305251416-xjs9f.png (42.9 KB) clipboard-202305251416-xjs9f.png 周 富甜, 05/25/2023 04:59 AM
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 #1

Updated by 余 顺 over 2 years ago

通过pmu 电源管理模块实现
对应的pmu 的 ldo 就是底板原理图的后面的这个备注 CLDO2

软件修改对应的配置即可
sdk根目录下的longan/kernel/linux-4.9/arch/arm64/boot/dts/sunxi/t507-board.dts

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 #2

Updated by 周 富甜 almost 2 years ago

  • File 2023.5.25.png added
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 #3

Updated by 余 顺 almost 2 years ago

  • File clipboard-202305251412-nnlpm.png added
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 #4

Updated by 周 富甜 almost 2 years ago

如果仅修改上述没有生效还需要修改对应fex 文件
1003300 对应3.3v
1001800 对应1.8v
还需要修改longan/device/config/chips/t507/configs/demo2.0/sys_config.fex

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 #5

Updated by 余 顺 almost 2 years ago

  • File deleted (2023.5.25.png)
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 #6

Updated by 余 顺 almost 2 years ago

  • File deleted (clipboard-202305251412-nnlpm.png)
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 #7

Updated by 余 顺 about 1 month ago

  • Tracker changed from 新建 to 完成
  • Status changed from 新建 to 完成
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