NUC980开源项目11-启动方式
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项目码云地址(国内下载速度快):https://gitee.com/jun626/nuc980-open-source-project
项目github地址:https://github.com/Jun1172/nuc980-open-source-project
ubuntu镜像,文件太大,加群私聊。
进度:
焊接完成,正在测试
1.四种启动方式
按照手册说明
2.电路设计
在电路上设计了两个拨码开关用于选择和配置启动方式
3.四种启动方式的选择和配置
总结一下
NUC980启动方式 | |||||||
PG0 | PG1 | PG3 | PG5 | PG8 | PG9 | ||
USB启动 | ON | ON | ON = After power-on, WDT Disabled. OFF = after power-on WDT Enabled |
ON = UART 0 debug message output ON | |||
NAND启动 | OFF | ON | 同上 | 同上 | ON/ON = NO ECC ON/OFF = ECC is BCH T12 OFF/ON = ECC is BCH T24 OFF/OFF = Ignore power-on setting |
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eMMC/SD启动 | ON | OFF | 同上 | 同上 | OFF/OFF = SD0/eMMC0 (GPC group) used as the booting source. Others = SD1/eMMC1 (GPF group) used as the booting source |
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SPI FLASH | OFF | OFF | 同上 | 同上 | ON/ON = SPI-NAND Flash with 1-bit mode. ON/OFF = SPI-NAND Flash with 4-bit mode. OFF/ON = SPI-NOR Flash with 4-bit mode. OFF/OFF = SPI-NOR Flash with 1-bit mode |
主要关注的是PG0和PG1,上电的不同方式决定了四种启动形式
然后比较重要的是PG3和PG5。
PG3管的是看门狗,PG5管的是调试串口。
那么作为一个开发者PG3和PG5应该都是在ON的位置。