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1 Hardware Overview gpio interface,pin map: AM335X_I2C0_W_C MCASP0_AXR1 /*4g-power*/ AM335X_MMC2_DAT0 GPMC_A1 /*4g-reset*/ AM335X_MMC2_DAT2 GPMC_A3 /* 阅读全文
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1 Scope of Document This document describes can bus hardware design and can bus driver development and can test 2 Requiremen 2.1 Function Requirement 阅读全文
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1 Scope of Document This document describes UART hardware design, uart driver porting 2 Requiremen 2.1 Function Requirement Uboot enable uart0 for deb 阅读全文
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1 Scope of Document This document describes i2c bus hardware design and support i2c-devices: eeprom(at24c08) rtc(rx8025). 2 Requiremen 2.1 Function Re 阅读全文
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为了系统和稳定性，flash上有两套系统。在uboot引导阶段会根据当前的bootslot变量，决择运行哪套系统。进入系统之后，会自动挂载数据区，然后启动开关的应用程序。 如上图所示系统有两块存储芯片，分别为512K的SPI-NOR与128M的SPI-NAND。Spi-nor分为5个区，其中rese 阅读全文