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EPC635 数据表(PDF) 28 Page - Espros Photonics corp

部件名 EPC635
功能描述  3D TOF Imager 160 x 60 Pixel
PDF  97 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  EPC [Espros Photonics corp]
网页  http://www.espros.ch
标志 EPC - Espros Photonics corp

EPC635 数据表(HTML) 28 Page - Espros Photonics corp

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5.4.8. I2C control command examples:
To simplify command sequence definitions, following C-programming language style functions are defined for the I2C master CPU:
■ i2cGeneralCall(byte genAdr, byte cmd);
// 20 x tSCL = 20µs
■ i2cSingleWrite(byte devAdr, byte regAdr, byte regVal);
// 29 x tSCL = 29µs
■ i2cMultiWrite(byte devAdr, byte regAdr, byte* regVal, byte n
// 20 + (n x 9 x tSCL) = 20 + (n x 9)µs
■ byte i2cSingleRead(byte devAdr, byte regAdr);
// 39 x tSCL = 39µs
■ byte* i2cMultiRead(byte devAdr, byte regAdr, byte n);
// 30 + (n x 9 x tSCL) = 30+(n x 9)µs
Software reset with I2C general call command
PRECONDITION: None
1.
i2cGeneralCall(0x00, 0x06);
// Software reset, same effect like RESET pin, 20µs
2.
…
// Wait for tRESET (> 100ns, see chapter 5.3.2., Software reset via I2C)
continue frame acquisition
Activates device address with I2C general call command
PRECONDITION: None
1.
i2cGeneralCall(0x00, 0x04);
// Activates I2C device address, 20µs
2.
i2cSingleWrite(0x22, 0x92, 0x34);
// Start with Sine mode, 4x DCS acquisition on I2C device 0x22...
3.
i2cMultiWrite(0x22, ...
4.
...
continue frame acquisition
Sine mode, 4x DCS mode: Acquire DCS 0 … 3 frames with integration time = 10µs
PRECONDITION: All other registers contain default values.
1.
i2cSingleWrite(0x20, 0x92, 0x34);
// MOD_Control = 0x34 (mod_sel = 00, dcs_sel = 11), 29µs
2.
i2cMultiWrite(0x20, 0xA2, &(0x031F), 2);
// Int_len = 0x031F (Integration time = 10µs), 38µs
3.
i2cSingleWrite(0x20, 0xA4, 0x01);
// Shutter_Control = 0x01, (shutter_en = 1), 29µs
4.
…
// Acquisition starts. Wait until all 4x DCS frames are finished.
done.
Sine mode, 4x DCS mode: Acquire DCS 0 … 3 with integration time = 10µs, followed by DCS 0 … 3 with integration time 200µs
PRECONDITION: All other registers contain default values.
1.
i2cSingleWrite(0x20, 0x92, 0x34);
// MOD_Control = 0x34 (mod_sel = 00, dcs_sel = 11), 29µs
2.
i2cMultiWrite(0x20, 0xA2, &(0x031F), 2);
// Int_len = 0x031F (integration time = 10µs), 38µs
3.
i2cSingleWrite(0x20, 0xA4, 0x01);
// Shutter_Control = 0x01, (shutter_en = 1), 29µs
4.
…
// Acquisition starts. Wait until all 4x DCS frames are finished.
5.
i2cMultiWrite(0x20, 0xA2, &(0x3E7F), 2);
// Int_len = 0x3E7F (integration time = 200µs), 38µs
6.
i2cSingleWrite(0x20, 0xA4, 0x01);
// Shutter_Control = 0x01, (shutter_en = 1), 29µs
7.
…
// Acquisition starts. Wait until all 4x DCS frames are finished.
done.
Sine mode, 2x DCS mode: Acquire DCS 0, 1 frames with integration time = 10µs
PRECONDITION: All other registers contain default values.
1.
i2cSingleWrite(0x20, 0x92, 014);
// MOD_Control = 0x14 (mod_sel = 00, dcs_sel = 01), 29µs
2.
i2cMultiWrite(0x20, 0xA2, &(0x031F), 2);
// Int_len = 0x031F (integration time = 10µs), 38µs
3.
i2cSingleWrite(0x20, 0xA4, 0x01);
// Shutter_Control = 0x01, (shutter_en = 1), 29µs
4.
…
// Acquisition starts. Wait until all 2x DCS frames are finished.
done.
Indirect single write to EEPROM: Store 2 bytes at address 0xE8 and 0xE9
PRECONDITION: None
1.
i2cSingleWrite(0x20, 0x11, 0xE8);
// EE_ADDR = 0xE8, 29µs
2.
i2cSingleWrite(0x20, 0x12, 0x22);
// EE_DATA = 0x22 (Temp_tl_cal1 = 0x22), 29µs + 20ms = ~20ms
3.
i2cSingleWrite(0x20, 0x12, 0x28);
// EE_DATA = 0x28 (Temp_tl_cal2 = 0x28), 29µs + 20ms = ~20ms
4.
...
done.
Note 1:
Start address is written in EE_ADDR.
© 2017 ESPROS Photonics Corporation
Characteristics subject to change without notice
28 / 97
Datasheet_epc635-V1.02
www.espros.com



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