Introduction
The M-501 is a credit card size ARM9-based SoM (System-on-Module). It includes an ATMEL AT91RM9200 ARM9 CPU, 64MB SDRAM and 16MB Flash. The operation system, Linux kernel 2.6.x with file system support, is pre-built in the M-501.
- ATMEL AT91RM9200 CPU, 200MIPS @180MHz, with MMU.
- 64MB SDRAM, 16MB NOR FLASH memory
- One 10/100 Mbps Ethernet interface with on-board PHY and transformer
- Two USB 2.0 Host ports, supports full speed (12 Mbps)
- One SD (secure digital) interface, supports SD mode.
- Four 921.6kbps UARTs supports hardware flow control
- I2C (Inter-IC) bus
- I2S (Inter-IC Sound) bus, one transmitter and one receiver
- SPI (Serial Peripheral Interface) with 2x chip select signals
- 32x general-purpose IOs (GPIO), CMOS/3.3V compatible
- External local bus (A0-A7, D0-D7), with 4x chip select signals
- Small footprint, 80x50mm only
- Ultra low power consumption, less than 2.5W
- Linux 2.6.x OS is pre-built in the FLASH, supports file system
- GNU C/C++ tool chain is included
M-501 Hardware Black Diagram
H/W Specifications
CPU/Memory
- CPU: ATMEL 180MHz AT91RM9200 (ARM9, w/MMU)
- Memory: 64MB SDRAM, 16MB Flash
Network
- Type: Ethernet, 10/100 Mbps
- PHY: DAVCOM DM9161
- Isolation: 1.5 KV
USB
- Host: x2, USB 2.0 compliant
- Signals: UdataA+, UdataA-,UdataB+,UdataB-
UART
- Port0: TXD0, RXD0, RTS0, CTS0, GND
- Port1: TXD1, RXD1, RTS1, CTS1, DCD1, DTR1, DSR1,GND
- Port2: TXD2, RXD2, RTS2, CTS2,GND
- Port3: TXD3, RXD3, RTS3, CTS3,GND
- Signal Level: CMOS/3.3V compatible
Common UART Parameters
- Baud Rate: Up to 921.6 Kbps
- Data Bits: 5 to 8 bits
- Parity: None, Even, Odd, Mark, Space
- Stop: 1, 1.5, 2 bits
- Flow Control: RTS/CTS, XON/XOFF, None
UART Port 0 advanced feature,
(when Port0 used as RS-485)
- Supports 9-bit Multi-drop mode
- Supports hardware auto direction control
I2C (Inter-IC Bus)
- Signals: TWD, TWDK
- Supported devices: (driver has been built-in)
Real-time Clock: Ricoh RS5C372
EEPROM: ATMEL AT24C16 and compatibles
I2S (Inter-IC Sound)
- Signals:
- Transmitter: TSCK, TWS, TSD
- Receiver: RSCK, RWS, RSD
SPI (Serial Peripheral Interface)
- Signals: MISO, MOSI, SPCK, CS1, CS2
SD (Secure Digital Card Interface)
- Signals: MCCDA, MCCK, MCDA0~MCDA3
- Compatible with SD memory card Specification 1.0
Watchdog timer
- CPU built-in internal watchdog timer, used by Linux kernel
General-Purpose IOs (GPIO)
- 32 GPIOs, can be programmed as digital input or output
- Support interrupt function when GPIO set as digital input
- Signal Level: CMOS/3.3V Compatible
Pre-defined Pins
- Reset Button (CN2, pin#35), input
- Buzzer (CN2, pin#37), output
- 2-pin DIP SW (CN2, pin#12,13), input
- System ready LED (CN2, pin#38), output
- LAN activity LED (CN3, pin#11), output
Undefined Digital IO Pins (reserved)
- CN1: pin#23, #24, #25, #26
- CN3: pin#23, #24
Debug ports
- JTAG port: for low level debug
- Console port: Tx/Rx serial console (share RTS2, CTS2)
Local Bus
- Data bus: 8-bit (D0~D7)
- Address bus: 8-bit (A0~A7)
- Chip select: x4 (NCS3~NCS6)
- Control bus: RD, WR
- Signal Level: CMOS/3.3V Compatible
Power Consumption
- Input range: 3.0 to 3.6VDC (3.3V nominal)
- Consumption: 2W
Mechanism
- Board dimension: 50 x80mm
- Connectors (2.0mm pitch)
- CN1: 28 pins; CN2: 50 pins; CN3: 50 pins
- Mounting holes: x4, 2.0mm(M2) diameter
S/W Specifications
General
- OS: Linux kernel 2.6.X
- Boot Loader: U-Boot 1.1.2
- File systems: JFFS2, EXT2/EXT3, VFAT/FAT, NFS
Protocol Stacks
- support IPV4, ICMP, ARP, DHCP, NTP, TCP, UDP, FTP, Telnet, HTTP, PPP, PPPoE, CHAP, PAP, SMTP, SNMP V1/V3,SSL, SSH 1/2
Pre-load Utilities
- Bash: Shell Command
- Telnet: Telnet client program
- Busybox: Linux utility collection
- FTP: FTP client program
Pre-load Daemons
- pppd: Dial In/out over serial port and PPPoE
- snmpd: SNMP agent program
- telnetd: Telnet server program
- inetd: TCP server program
- ftpd: FTP server program
- boa: Web server program
- sshd: secured shell server
- iptables: Firewall service manager
- armd: Artila manager daemon
Tool Chain for Linux/Windows
- GCC: C/C++ PC cross compiler
- GLIBC: POSIX Library
- To use the tool chain for Windows, users have to install Cygwin first, and Invoke the cross-compiler in the Cygwin console. Cygwin package 1.5.19-x is already included in the CD.
Standard Device Drivers
- SD/MMC, UART, Ethernet, GPIO, Buzzer
- Real Time Clock: supports Ricoh RS5C372
- EEPROM: supports ATMEL AT24C16 and compatibles
Pre-load USB Host Drivers (could be customized)
- Flash thumb disk
- IEEE-802.11b/g WiFi adapter (Ralink)
- 10/100Mbps Fast Ethernet adapter (RT8150)
- RS-232 adapter (prolific)
- ADSL modem
- ISDN modem (CDC/ACM compatible)
Screenshots
Search utility to find all the M-501 on the network
M-501 login screen (telnet)
Cross compile user applications in Cygwin Console
Serial Console for advanced debug and maintenance
Pin Assignment
Module Dimension
Ordering Information
M-501-16
Linux-ready ATMEL91RM9200 128-pin System-on-Module
M-501-16 Starter Kit
Includes one M-501-16 SoM and one carrier board with power circuitry, 3x RS-232 ports, 1x RS-232/422/485 port, 1x Ethernet port, 2x USB hosts, 1x SD socket (at back side), 2x GPIO connectors, RealTime Clock, EEPROM, and local bus connector.
