Difference between revisions of "DSerial"
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! Symbol !! Package !! Description | ! Symbol !! Package !! Description | ||
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| − | | [[C8051F320|MCU]] || LQFP-32 || [http://www.silabs.com Silicon Laboratories] [[C8051F320]] USB microcontroller | + | | [[C8051F320|MCU]] || [http://www.zmd.de/pdf/packaging/LQFP32%20(7x7).pdf LQFP-32] || [http://www.silabs.com Silicon Laboratories] [[C8051F320]] USB microcontroller |
|- | |- | ||
| [[ADXL311|ACCEL]] || [http://www.analog.com/UploadedFiles/Packages/491921194E_8_1.pdf E-8] || [http://www.analog.com Analog Devices] [[ADXL311]] dual axis accelerometer | | [[ADXL311|ACCEL]] || [http://www.analog.com/UploadedFiles/Packages/491921194E_8_1.pdf E-8] || [http://www.analog.com Analog Devices] [[ADXL311]] dual axis accelerometer | ||
Revision as of 01:14, 13 December 2006
Contents
DSerial Software
DS Side
Microcontroller Side
DSerial Hardware
DSerial Components
DSerial uses ICs that require very few components.
| Symbol | Package | Description |
|---|---|---|
| MCU | LQFP-32 | Silicon Laboratories C8051F320 USB microcontroller |
| ACCEL | E-8 | Analog Devices ADXL311 dual axis accelerometer |
| MAX | TSSOP-16 | Texas Instruments MAX3221 Single-Channel RS-232 Line Driver/Receiver |
| LED1, LED2 | 0805 | Status LEDs |
| R1 | 0603 | 2kOhm resistor (not needed) |
| R2 | 0603 | 1MOhm resistor (for ACCEL) |
| R3, R4 | 0603 | current-limiting resistors (around 47Ohm) |
| C1, C2, C3, C4, C5 | 0603 | 0.1uF ceramic capacitors |
| C6 | 0603 | 0.1uF ceramic capacitor (decoupling cap for MCU) |
| C7, C8, C9 | 0603 | 0.1uF ceramic capacitors (for ACCEL) |
DSerial provides the following connectors.
| Symbol | Number of contacts | Description |
|---|---|---|
| USB | 6 | Mini USB connector |
| RS232 | 3 | RS232 level UART |
| IO1 | 12 | First IO connector |
| IO2 | 12 | Second IO connector |
| PROG | 4 | Programming connector (initial programming) |
| SLOT | 17 | DS Slot connector |
There are also a couple of solder jumpers.
| Symbol | Default | Description |
|---|---|---|
| PWR | Disabled | Enables USB powered mode |
| INV | Disconnected | Connects MAX3221 serial line sense to P0.7 of C8051F320. This could be used to detect whether a serial port is connected. |
| X, Y | Analog | Selects duty cycle or analog mode for the accelerometer |
