Order R1000AX and other modules here.
Overview
R1000AX is a base board for the JuicyBoard platform. It includes 15 feature slots, efficient switching regulators with 5V and 3.3V outputs, power monitoring and safety features.
Architecture
This is a block diagram of the board
Design Source Files
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Hot-swap Controller and System Protection
Power Tree
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System Power Monitoring
R1000AX includes an INA3221 high side supply monitor from TI. It monitors the high voltage, 5V and 3.3V domains.
| INA3221 Channel # | Voltage Domain | Operating Range |
|---|---|---|
| 1 | High voltage | 9 ~ 24V |
| 2 | +5V | 4.5v~5.5V |
| 3 | +3.3V | 3V~3.6V |
EEPROM For Storing NV Configuration Data
R1000AX includes a small 8kbit EEPROM that can be used to store critical configuration data outside the MCU flash memory. This is useful for tracking changes, serial number ... etc. By default the EEPROM is write protected, the user enable write by 2 ways
| Short J18 with a jumper |
|
| Connect TP1 on the bottom of the board to ground. This is useful for automated test setups |
|
Compute Module
Currently there are 3 interposer designs that allow mounting a particle Electron, Photon or a C.H.I.P. Pro. Interposer board numbers are
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| R1000AX Signal Name | Description | Polarity | Type | Photon | Electron | C.H.I.P. Pro |
|---|---|---|---|---|---|---|
| !RESET | LPC1769 reset pin | Active Low | Open Drain | A5 | A5 | PB2/SPDIF-DO/PWM0 |
| ISP/Module Reset | LPC1769 boot pin AND module reset | Active Low | Open Drain | A4 | A4 | PG13/EINT13/PWM1 |
| SWDCLK | LPC1769 SWD clock | - | Push-Pull, tie low or leave floating for normal operation | A3 | A3 | PD4/UART2-CTS |
| SWDIO | LPC1769 SWD data | - | Push-Pull, leave floating for normal operation | A2 | A2 | PD5/UART2-RTS |
| RXD0 | LPC1769 UART0 RX pin | - | Input to LPC1769, output from compute module | TX | TX | PD2/UART2-TX |
| TXD0 | LPC1769 UART0 TX pin | - | Output from LPC1769, input to compute module | RX | RX | PD3/UART2-RX |
| COMPUTE_USB+/- | Host USB from compute module (C.H.I.P. Pro) | Differential Pair | USB 2.0 | - | - | USB0-UDM0/UDP0 |
| +5V | 5V supply from R1000AX to power compute module | - | Power pin | VIN | VIN | CHG-IN |
This is the footprint for the compute module
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