D evelerBoard Blue Hardware Reference Manual Mechanical Characteristics Component Side view Pin #1 is indicated by a notch which is in the top right corner in the image. https://www.develboard.com Pag. 4/30 ...
D evelerBoard Blue Hardware Reference Manual Module Outline NOTE: dimensions are in millimeters. Module height is 2 .7 millimeters. https://www.develboard.com Pag. 5/30 ...
D evelerBoard Blue Hardware Reference Manual Recommendations for carrier board design The board has 168 pins placed all around the module. There are therefore 42 pins for each side. Pad dimensions are 0.4x1.5 mm with a pitch of 0.8mm. There are also 4 GND connections at the module corners which are not included in pin count. We recommend to use the following landing pattern for soldering the module on the carrier board PCB. Top view, unit:mm We suggest to surround each pad with a 0.05mm solder mask. https://www.develboard.com Pag. 6/30 ...
D evelerBoard Blue Hardware Reference Manual We also supply the schematic symbol and PCB footprint for various CADs. Please check on our site. We suggest to avoid running noisy traces (e.g. high speed digital, RF, high current traces, etc…) underneath the module on a layer where the module is mounted. Signal traces can be run on a third layer under the solid ground layer and beneath the module mounting. PCB planarity We recommend to try to achieve the best planarity in PCB manufacturing and finishing process to improve the mechanical strength of solder joints. We suggest to use horizontal finishing processes (e.g. Chemical Gold) and to contact your PCB manufacturer in order to achieve the best compromise between planarity and other characteristics (e.g. needed padstack, impedance, etc…). https://www.develboard.com Pag. 7/30 ...
D evelerBoard Blue Hardware Reference Manual Ordering Information Please use the following codes: Product RAM size Flash size Code Operating temperature DevelBoard Blue SOM 128MiB 128MiB DBB128R128F 40°C to +85°C DevelBoard Blue SOM 256MiB 512MiB DBB256R512F 40°C to +85°C https://www.develboard.com Pag. 8/30 ...
MAX (@I MAX) 0.4 V OL O V MIN (@I MAX) VDD 0.4 V OH O Please note that all pins are N OT 5Vtolerant. Special Pins SHDN This pin is connected to the SHDN pin of the CPU. It is used to shut down an external power supply. This pin is always high and goes low when the CPU performs a software shutdown. It is connected to the VDDBU domain voltage. For more information, please refer to the ATSAMA5D44 datasheet: http://www.atmel.com/devices/ATSAMA5D44.aspx VBATT This voltage is be used to supply the VDDBU domain voltage peripherals of the CPU (e.g. the real time clock). You can connect the VBATT pin to a battery or backup capacitor with a voltage in range 2.63.3V. You can leave it unconnected if the VDDBU peripherals are not used. VDDBU is internally generated with a LDO connected with a diode to 3.3V if VBATT is not present. Pag. 14/30 https://www.develboard.com ...
D evelerBoard Blue Hardware Reference Manual WKUP This pin is connected to the WKUP pin of the CPU. It is used to wake up the CPU is in shutdown mode. For more information, please refer to the ATSAMA5D44 datasheet: http://www.atmel.com/devices/ATSAMA5D44.aspx #RESET General reset of the board, active low. Keep this pin low (#RESET < 1V) for at least 1ns to reset the board. This pin has an internal pullup of 100K to 3.3V power supply. Can be left unconnected if reset control is not needed. ADCREF_EXT Not connected in current DevelBoard Blue version. Currently ADCVREF of the CPU is connected to the 3.3V power supply. For normal operation leave this pin unconnected. BOOT_RECOVERY For normal operation, this pin can be driven low or left unconnected. If driven high, this pin disables the CE input of the onboard flash memory. This is useful to prevent the CPU from booting from the onboard flash if something goes wrong during development or if you want the CPU to boot from other devices. Pag. 15/30 https://www.develboard.com ...
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D evelerBoard Blue Hardware Reference Manual GPIO Driven during Boot Program Execution The Atmel bootloader present on the CPU of the DevelBoard uses several GPIOs in peripheral mode to communicate with external memory devices. Care must be taken when these GPIOs are used by the application. The connected devices could be unintentionally driven at boot time, and thus electrical conflicts between output pins used by the bootloader and the connected devices could occur. To assure the correct functionality, it is recommended to plug in critical devices to other pins, not used by bootloader. The following contains a list of pins that are driven during the boot program execution. These pins are driven during the boot sequence for a period of less than 1 second if no correct boot program is found. Before performing the jump to the application in the internal SRAM, all the GPIOs and peripherals used in the boot program are set to their reset state. PIN Name Peripheral Bootloader type 35 MCI1_CK PE18 MCI1A SD Card / eMMC 18 MCI1_CDA PE19 ...
D evelerBoard Blue Hardware Reference Manual Onboard Peripherals LEDs DevelBoard Blue has two onboard LEDs: Power LED and Generic LED. The Power LED is connected to the 3.3V power supply and turns on as soon as the power is applied. The Generic LED is connected to P B31 and can be controlled by the CPU: PIN Name PB31/Generic LED Pag. 17/30 https://www.develboard.com ...
D evelerBoard Blue Hardware Reference Manual MAC EEPROM DevelBoard Blue has an onboard MAC EEPROM which is used to store the MAC address of the onboard 2 ethernet interface and other service information. The EEPROM is connected to the I C bus TWI0 of the CPU: PIN Name TWCK0 140 TWD0 The EEPROM is accessed at boot time to read the MAC address and therefore these pins cannot be used as 2 2 generic GPIOs. They can be used as a normal I C bus by the user. The connected EEPROM has 2 I C addresses: 0x58 for MAC and 0x50 for the EEPROM, please ensure other devices connected on the bus have different addresses to avoid conflicts. Ethernet (GMAC0 - eth0) The DevelBoard Blue has an onboard ethernet PHY connected to GMAC0. You can directly connect the ...
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D evelerBoard Blue Hardware Reference Manual Example connection, connector used: Würth 74990101210. Pag. 19/30 https://www.develboard.com ...
D evelerBoard Blue Hardware Reference Manual Ethernet connection (GMAC1 - eth1) The second ethernet port (GMAC1) needs a external PHY connected to the RMII interface of the microprocessor. List of signals: PIN Name G1_RX0 49 G1_RXDV 52 G1_TX0 53 G1_TXCK 54 G1_RXER 55 G1_TXEN 58 G1_RX1 60 G1_TX1 ...
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D evelerBoard Blue Hardware Reference Manual Example GMAC1 connection using the M icrel KSZ8081RNBIA 10/100 ethernet physical layer transceiver: Pag. 21/30 https://www.develboard.com ...
D evelerBoard Blue Hardware Reference Manual USB connection The board has 2 highspeed USB host ports and 1 highspeed USB OTG port. List of signal: PIN Name Notes HHSDMA/DHSDM USB OTG port A, D signal 142 HHSDPA/DHSDP USB OTG port A, D+ signal 143 HHSDMB USB host port B, D signal 144 HHSDPB USB host port B, D+ signal 145 HHSDPC USB host port C, D+ signal 146 HHSDMC USB host port C, D signal ...
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D evelerBoard Blue Hardware Reference Manual In order to supply the USB host port, it is also recommended to use a USB power distribution switch: In the example above, the E xar SP2526A dual channel USB power distribution switch is used to power USB C port. VBUS_C_ENABLE and VBUS_C_OVERCURRENT can be connected to any available GPIO in order to enable the USB power and sense overcurrent events. Example USB OTG port A: J1 is a miniAB connector has an additional fifth pin: ID. ID can be connected to any available GPIO pin and can be used to detect USB role if needed. Pag. 23/30 https://www.develboard.com ...
D evelerBoard Blue Hardware Reference Manual SD card connections The board has 2 SDIO interfaces, MCI0 and MCI1 which can be connected to SD cards. To boot DevelBoard from SD you m ust use MCI1A. List of signals for MCI1A: PIN Name Notes MCI1_DA0 18 MCI1_CDA 35 MCI1_CK 32 PE9 (optional) Card detect, any GPIO will do ...
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D evelerBoard Blue Hardware Reference Manual The second SDIO interface is available on MCI0B. List of signals for MCI0B: PIN Name Notes MCI0_DB2 19 MCI0_DB3 23 MCI0_DB0 26 MCI0_DB1 28 MCI0_CDB 138 MCI0_CK 164 PE10 (optional) Card detect, any GPIO will do ...
D evelerBoard Blue Hardware Reference Manual JTAG interface and debug port JTAG signal list: PIN Name NTRST 61 TMS 65 TCK 104 TDO 149 RESET Example 20 pin JTAG connector: The board will use UART3 as debug console: PIN Name ...
D evelerBoard Blue Hardware Reference Manual Electrical Characteristics This module can be damaged by ESD. Develer recommends that all modules be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Absolute Maximum Ratings Value Minimum Maximum Unit Storage temperature 55 +150 °C Voltage on Input Pins with Respect to Ground 0.3 4.0 V Maximum operating voltage 4.0 V Total DC Output Current on all I/O lines ...
Hardware Reference Manual Power Consumption DevelBoard power consumption measured on a DBB256R512F module @3.3V, 25°C. TEST Condition Typ. Unit CPU CPU @600MHz, no user task or action, linux shell prompt with no sd, 570 mW IDLE no eth, and no usb device connected. CPU CPU @600MHz, 100% load with stressng0.03.11 (no sd, no eth, no 800 mW 100% usb device connected): ./stressng cpu 1 io 0 vm 0 l 100 MAX CPU @600MHz, 100% load, read/write on USB flash drive 890 mW LOAD DC Characteristics For DC characteristics and other electrical specifications please refer to the ATSAMA5D44 datasheet: http://www.atmel.com/devices/ATSAMA5D44.aspx Pag. 30/30 https://www.develboard.com ...