Difference between revisions of "Hantek PSO2020"
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Uwe Hermann (talk | contribs) (Wikify EEPROM contents. Doesn't contain firmware so we can actually host this.) |
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'''Note''': The firmware is '''not''' flashed into the device permanently! It will be automatically "uploaded" to the Cypress FX2's SRAM every time you attach the device to a USB port. | '''Note''': The firmware is '''not''' flashed into the device permanently! It will be automatically "uploaded" to the Cypress FX2's SRAM every time you attach the device to a USB port. | ||
EEPROM | === EEPROM layout === | ||
The device has a 256-byte I²C EEPROM with the following layout: | |||
<span style="background-color: orange">c0</span> <span style="background-color: lime">b4 04</span> <span style="background-color: green">23 60</span> <span style="background-color: lightgreen">00 00</span> <span style="background-color: brown">00</span> <span style="background-color: yellow">91 91 91 91 8a 8a 85 85</span> | |||
<span style="background-color: yellow">81 81 91 91 8a 8a 85 81 81 81 81 81 91 91 91 91</span> | |||
<span style="background-color: yellow">8a 8a 85 85 81 81 91 91 8a 8a 85 81 81 81 81 81</span> | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff | |||
Description: | |||
{| border="0" style="font-size: smaller;" class="alternategrey sigroktable" | |||
!Bytes | |||
!Description | |||
|- | |||
| style="background-color: orange" | 0 | |||
| '''0xc0''': FX2 "c0 load" mode, i.e. VID/PID/DID are loaded from EEPROM (but not firmware). | |||
|- | |||
| style="background-color: lime" | 1-2 | |||
| '''0x04b4''': USB vendor ID (VID). | |||
|- | |||
| style="background-color: green" | 3-4 | |||
| '''0x6023''': USB product ID (PID). | |||
|- | |||
| style="background-color: lightgreen" | 5-6 | |||
| '''0x0000''': USB device ID (DID). | |||
|- | |||
| style="background-color: brown" | 7 | |||
| '''0x00''': FX2 configuration byte (see FX2 TRM for details). | |||
|- | |||
| style="background-color: yellow" | 8-47 | |||
| Unknown. Possibly calibration data? | |||
|- | |||
| style="background-color: cyan" | 48-255 | |||
| All-0xff. | |||
|} | |||
== Resources == | == Resources == | ||
Revision as of 15:09, 24 December 2017
 | |
| Status | |
|---|---|
| Source code | [1] |
| Channels | 1 |
| Samplerate | 96MHz |
| Analog bandwidth | 20MHz |
| Vertical resolution | 8bit |
| Triggers | none (SW-only) |
| Input impedance | 1MΩ‖25pF |
| Memory | none |
| Display | none |
| Connectivity | USB |
| Website | hantek.com |
The Hantek PSO2020 is a USB-based, 1-channel oscilloscope with an analog bandwidth of 20MS/s and 96MS/s sampling rate. Wide input rage, from ±100mV to ±50V.
See Hantek PSO2020/Info for more details (such as lsusb -v output) about the device.
Hardware
- USB: Cypress CY7C68013A-100AXC (FX2LP) (datasheet)
- 256-byte I²C EEPROM: Microchip 24LC02BI (datasheet)
- ?? 2x 8-channel analog multiplexer/demultiplexer: NXP 74HC4051D (datasheet)
- 1A low-dropout voltage regulator (3.3V): Advanced Monolithic Systems AMS1117-3.3 (datasheet)
- ?? 2W, fixed input, isolated & unregulated dual/single output DC/DC converter: Mornsun A_S-2WR2 (A0505S-2WR2) (datasheet)
- 8-bit, 40/80/100MHz, dual ADC: Analog Devices AD9288 (datasheet)
- ?? 4x 145 MHz FastFET Op Amp: Analog Devices AD8065 (datasheet)
- Crystal: 24MHz
Microchip 24LC02BI pinout:
| (Low, but not GND) A0 | 1- | O | -8 | VCC |
| (GND) A1 | 2- | -7 | WP (GND) | |
| (GND) A2 | 3- | -6 | SCL (FX2 SCL) | |
| VSS | 4- | -5 | SDA (FX2 SDA) |
Analog Devices ADS9288 pinout:
| AD9288 pins | Description |
|---|---|
| S1, S2 | S1=VCC, S2=GND. "Normal operation, data align disabled". |
| DFS | Tied to GND. Data format select = "offset binary" (not "twos complement"). |
| AINA, AINB | Analog input channels. |
Cypress FX2 pinout (TODO):
| FX2 pins | Description |
|---|---|
| CTL2 | Connected to AD9288 ENCA and ENCB and FX2 IFCLK. |
| PB0-PB7 | Connected to AD9288 D0A-D7A. |
| PD0-PD7 | Connected to AD9288 D0B-D7B. |
| PA7 | High Voltage Rele' |
| PC6 | Green LED.
|
Photos
Box Front
Box Back
Device
Inside Front
Inside Back
Inside Detail
Protocol
Firmware
Note: The firmware is not flashed into the device permanently! It will be automatically "uploaded" to the Cypress FX2's SRAM every time you attach the device to a USB port.
EEPROM layout
The device has a 256-byte I²C EEPROM with the following layout:
c0 b4 04 23 60 00 00 00 91 91 91 91 8a 8a 85 85 81 81 91 91 8a 8a 85 81 81 81 81 81 91 91 91 91 8a 8a 85 85 81 81 91 91 8a 8a 85 81 81 81 81 81 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Description:
| Bytes | Description |
|---|---|
| 0 | 0xc0: FX2 "c0 load" mode, i.e. VID/PID/DID are loaded from EEPROM (but not firmware). |
| 1-2 | 0x04b4: USB vendor ID (VID). |
| 3-4 | 0x6023: USB product ID (PID). |
| 5-6 | 0x0000: USB device ID (DID). |
| 7 | 0x00: FX2 configuration byte (see FX2 TRM for details). |
| 8-47 | Unknown. Possibly calibration data? |
| 48-255 | All-0xff. |