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Hardware MHI2

Front cover

MHI2 unit with a SIM card slot (LTE module)

RCC (Radio and Car Control) Mainboard / PCB (Printed Circuit Board)

RCC board bottom view. Chips: RCC, NOR, IOC (Renesas V850)

\n RCC board top view with MMX board top view on top RCC board top view with MMX board removed

MMX (Multi Media eXtension) Mainboard / PCB (Printed Circuit Board)

MMX board top view. Chips: Tegra30, NAND, 4xSDRAM

MMX board bottom view. Chips: NOR

MMX board chip details

MMX - alternative PCB layouts

Over time different MMX PCB layouts can be found in MHI2 units (see also above) MMX Tegra30 Peripherals / Pinouts

Tegra3_publicTRM_DP05644001_v03.pdf 23726005

UARTD is exposed as the MMX UART console on the quadlock

NOR is at 0x48000000

USB0 is normal connection, USB3 is also configured in QNX

MMC/SD

  • sda: 0x78000000 (SDMMC-1) bs=cd=D3:wp=V2:rs=V6
  • sdb: 0x78000400 (SDMMC-3) bs=cd=D4:wp=V3:rs=V7

WLAN

  • io-sdiorm-mib2 -p33 -c45000000 -h ioport=0x78000200,irq=47,inpclk=45000000

You can find more addresses in /net/mmx/mnt/system/etc/boot/startup.sh

:::info MMX board on the MHI2Q does not have Tegra30, NOR and NAND chips. They are replaced with Qualcomm and eMMC chips.

:::