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UM1657 Datasheet(PDF) 22 Page - STMicroelectronics |
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UM1657 Datasheet(HTML) 22 Page - STMicroelectronics |
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22 / 48 page  Hardware description UM1657 22/48 DocID025094 Rev 1 1. The power supply sources: USB connector and jack connector for external power supply. USB connector is used also for I/O with the microcontroller with a virtual COM port exposed to the PC. 2. Switch to turn ON or OFF the board. 3. JTAG/SWD connector. 4. Three button and a joystick: a) SCM_PS, not used b) RESET, for resetting the MB board c) Push_Button, used to enter in DFU mode d) Joystick, not used. 5. Test point (TP), to probe the SPI signals, the 4 GPIOs of the SPIRIT1, the shutdown of the SPIRIT1 (SDN), the supply voltage of the SPIRIT1 (VCCRF). The list of signals available is: a) GND b) VCC_RF c) GPIO SDN (the pin to drive in SHUTDOWN the SPIRIT1) d) SPI CSn e) SPI MISO f) SPI MOSI g) SPI SCKL h) SPIRIT1 GPIO2 i) SPIRIT1 GPIO3 j) SPIRIT1 GPIO1 k) SPIRIT1 GPIO0 l) GND 6. Five LEDs 7. SMA connector |
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