MITX-CORE-820 datasheet(84/104 Pages) EMERSON-NETWORKPOWER

84 / 104 page

Firmware

MITX-CORE-820 Installation and Use (6806800M10D)

5.4

EC Firmware Flash

5.4.1

Flash with SF100

The MITX-CORE-820 uses the Nuvoton W25Q80 as a flash device. The EC firmware is stored in

the SPI flash part. The SF100 can be used to flash the firmware into the flash part.

5.4.2

Flash with ECDT

Nuvoton provides a USB to the JTAG board. A JTAG header is also reserved for the MITX-CORE-

820 board. The EC debug tool can also be used to download the EC code to be used by the JTAG

to flash the USB to the board.

5.4.3

Flash with Utility

Nuvoton provides the flash update application for Nuvoton embedded controllers. It runs on

either 16-bit DOS or Windows XP/Vista 32-bit/64-bit. It programs the flash of the Nuvoton EC

with the contents of a flash binary image file, which holds EC firmware and/or system BIOS.

5.4.4

Crisis Recovery

The NPCE791x BOOTER Program resides in the on-chip ROM. After reset, it performs all boot

procedures, including NPCE791x initialization based on the header data. Then it checks the EC

firmware in the flash and if it detects a problem, the BOOTER enters recovery mode and allows

debugging via JTAG.

5.5

EC Debug Interface

5.5.1

Serial Port

The Serial Port 1 provides the UART functionality by supporting serial data communication

with a remote peripheral device or a modem. The functional block can function as a standard

16450 or 16550 or as an extended UART. The BIOS can use it to implement the console

redirection function.

MITX-CORE-820 Datasheet(PDF) 84 Page - Emerson Network Power