ST STEVAL-WLC38RX - Page 79

List of figures
Figure 1. STEVAL-WLC38RX evaluation board ....................................................1
Figure 2. Main board elements................................................................4
Figure 3. Headers and test points ..............................................................5
Figure 4. Transmitter and receiver boards setup....................................................6
Figure 5. PC GUI main screen ................................................................7
Figure 6. Device selection and connection ........................................................8
Figure 7. Save RX button ...................................................................9
Figure 8. Configuration ID field................................................................9
Figure 9. Save folder selection ............................................................... 10
Figure 10. Device selection ..................................................................10
Figure 11. Confirmation of patch version ......................................................... 11
Figure 12. Header file save .................................................................. 11
Figure 13. Loading the header file .............................................................12
Figure 14. Loading the patch and configuration files .................................................13
Figure 15. STWLC38 system block diagram ...................................................... 14
Figure 16. PC GUI charts ...................................................................15
Figure 17. SOVP Rx protection threshold setting ................................................... 18
Figure 18. SOVP Rx protection settings ......................................................... 19
Figure 19. HOVP Rx protection threshold setting ................................................... 19
Figure 20. HOVP Rx protection settings ......................................................... 20
Figure 21. VRECT and OVP thresholds ......................................................... 20
Figure 22. Firmware Rx protection threshold setting .................................................21
Figure 23. Firmware Rx protection settings ....................................................... 21
Figure 24. Over current protection threshold setting ................................................. 22
Figure 25. Hardware overcurrent Rx protection selection.............................................. 22
Figure 26. Firmware overcurrent Rx protection threshold setting......................................... 23
Figure 27. Firmware overcurrent Rx protection settings...............................................23
Figure 28. Hardware overtemperature Rx protection threshold setting..................................... 24
Figure 29. Hardware overtemperature Rx protection settings ...........................................24
Figure 30. Firmware overtemperature Rx protection threshold setting .....................................25
Figure 31. Firmware overtemperature Rx protection settings ........................................... 25
Figure 32. NTC Rx protection threshold setting ....................................................26
Figure 33. NTC Rx protection settings NTC ADC ................................................... 26
Figure 34. Qi Baseline Power Profile flowchart.....................................................28
Figure 35. Qi Extended Power Profile flowchart .................................................... 29
Figure 36. HI and LO states in ASK communication ................................................. 30
Figure 37. Example of a differential bi-phase encoding scheme .........................................31
Figure 38. Example of asynchronous serial format ..................................................31
Figure 39. ASK modulation capacitor connections .................................................. 32
Figure 40. Example of differential bi-phase encoding ................................................ 32
Figure 41. Format of three defined responses ..................................................... 33
Figure 42. STEVAL-WBC86TX and STEVAL-WLC38RX setup.......................................... 35
Figure 43. Writing to a single I²C register......................................................... 36
Figure 44. Writing to multiple I²C registers ........................................................ 37
Figure 45. Reading from a single I²C register ...................................................... 37
Figure 46. Reading from multiple I²C registers ..................................................... 37
Figure 47. Interrupt register settings ............................................................ 39
Figure 48. STEVAL-WLC38RX circuit schematic ................................................... 40
Figure 49. Mechanical characteristics of the receiver coil 1 ............................................ 43
Figure 50. Mechanical characteristics of the receiver coil 2 ............................................ 44
Figure 51. Mechanical characteristics of the receiver coil 3 ............................................ 44
Figure 52. STEVAL-WLC38RX PCB layout top layer................................................. 45
Figure 53. STEVAL-WLC38RX PCB layout inner 1 layer .............................................. 46
UM3154
List of figures
UM3154 - Rev 2
page 79/81