| Matrix Vision mvBlueLYNX-M7 (mvBL-M7) | |
| ------------------------------------- | |
| 1. Board Description | |
| The mvBL-M7 is a 120x120mm single board computing platform | |
| with strong focus on stereo image processing applications. | |
| Power Supply is either VDC 12-48V or Pover over Ethernet (PoE) | |
| on any port (requires add-on board). | |
| 2 System Components | |
| 2.1 CPU | |
| Freescale MPC8343VRAGDB CPU running at 400MHz core and 266MHz csb. | |
| 512MByte DDR-II memory @ 133MHz. | |
| 8 MByte Nor Flash on local bus. | |
| 2 Vitesse VSC8601 RGMII ethernet Phys. | |
| 1 USB host controller over ULPI I/F. | |
| 2 serial ports. Console running on ttyS0 @ 115200 8N1. | |
| 1 SD-Card slot connected to SPI. | |
| System configuration (HRCW) is taken from I2C EEPROM. | |
| 2.2 PCI | |
| A miniPCI Type-III socket is present. PCI clock fixed at 66MHz. | |
| 2.3 FPGA | |
| Altera Cyclone-II EP2C20/35 with PCI DMA engines. | |
| Connects to dual Matrix Vision specific CCD/CMOS sensor interfaces. | |
| Utilizes another 256MB DDR-II memory and 32-128MB Nand Flash. | |
| 2.3.1 I/O @ FPGA | |
| 2x8 Outputs : Infineon High-Side Switches to Main Supply. | |
| 2x8 Inputs : Programmable input threshold + trigger capabilities | |
| 2 dedicated flash interfaces for illuminator boards. | |
| Cross trigger for chaining several boards. | |
| 2.4 I2C | |
| Bus1: | |
| MAX5381 DAC @ 0x60 for 1st digital input threshold. | |
| LM75 @ 0x90 for temperature monitoring. | |
| EEPROM @ 0xA0 for system setup (HRCW etc.) + vendor specifics. | |
| 1st image sensor interface (slave adresses depend on sensor) | |
| Bus2: | |
| MAX5381 DAC @ 0x60 for 2nd digital input threshold. | |
| 2nd image sensor interface (slave adresses depend on sensor) | |
| 3 Flash layout. | |
| reset vector is 0xFFF00100, i.e. "HIGHBOOT". | |
| FF800000 environment | |
| FF802000 redundant environment | |
| FF804000 u-boot script image | |
| FF806000 redundant u-boot script image | |
| FF808000 device tree blob | |
| FF80A000 redundant device tree blob | |
| FF80C000 tbd. | |
| FF80E000 tbd. | |
| FF810000 kernel | |
| FFC00000 root FS | |
| FFF00000 u-boot | |
| FFF80000 FPGA raw bit file | |
| mtd partitions are propagated to linux kernel via device tree blob. | |
| 4 Booting | |
| On startup the bootscript @ FF804000 is executed. This script can be | |
| exchanged easily. Default boot mode is "boot from flash", i.e. system | |
| works stand-alone. | |
| This behaviour depends on some environment variables : | |
| "netboot" : yes ->try dhcp/bootp and boot from network. | |
| A "dhcp_client_id" and "dhcp_vendor-class-identifier" can be used for | |
| DHCP server configuration, e.g. to provide different images to | |
| different devices. | |
| During netboot the system tries to get 3 image files: | |
| 1. Kernel - name + data is given during BOOTP. | |
| 2. Initrd - name is stored in "initrd_name" | |
| 3. device tree blob - name is stored in "dtb_name" | |
| Fallback files are the flash versions. |