u-blox XPLR-HPG-1, Руководство пользователя

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XPLR-HPG-1 - User guide
UBX-23000692 - R01 Hardware description Page 18 of 37
C1-Public
XPLR-HPG-1 supports an auto reset circuit connected to the BOOT0 and RESET pins of NORA-W106,
as shown in Figure 12 . This circuit enables programming tools like the
esptool.py
to assert the DTR
and RTS control lines of the USB to Serial converter (CP2102N) and set NORA-W106 on the serial
bootloader mode. See also Espressif ESP32 Automatic Bootloader documentation
[9] .
Figure 12: NORA-W106 auto reset circuit
2.1.5 MikroBUS
XPLR-HPG-1 board has three MikroBUS connectors with available space to nestle three large size
Click boards. Each MikroBUS connector exposes:
• 3x GPIOs (RESET, PWM, INT)
•
1x analog input (AN)
• 1x UART (2 wire)
• 1x I2C bus
• 1x SPI bus with one CS (chip select) line for each mikroBUS slot
For further information about the mikroBUS standard, visit the mikroBUS website [10] .
⚠
Connecting a third-party Click board with IOs referenced at 5 V can seriously damage because the
board. The NORA-W106 I/Os and the Click boards provided in the XPLR-HPG-1 kit are referenced
at 3.3 V.
Table 3 shows the mikroBUS pin connections.
mikroBUS 1 mikroBUS 2 mikroBUS 3
mikroBUS pin NORA-
W106
ESP32-S3
GPIO NORA-
W106 ESP32-S3
GPIO NORA-
W106 ESP32-S3
GPIO
1 - AN E8 GPIO1 (A) G3 FSPIIO5 / GPIO11 (A) G2 GSPIIO6 / GPIO12 (A)
2 - RST E7 GPIO9 (A) F3 SPICLK_P / GPIO47 H1 JTAG_TDI / GPIO41
3 - SPI-CS A2 FSPIWP / GPIO38 A5 FSPIDQS / GPIO14 (A) A6 FSPIIO7 / GPIO13 (A)
4 - SPI-SCK B1 FSPICLK / GPIO36 B1 FSPICLK / GPIO36 B1 FSPICLK / GPIO36
5 - SPI-CIPO C1 FSPIQ / GPIO37 C1 FSPIQ / GPIO37 C1 FSPIQ / GPIO37
6 - SPI-COPI C2 FSPID / GPIO35 C2 FSPID / GPIO35 C2 FSPID / GPIO35
7 - 3.3 V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V
8 - GND GND GND GND GND GND GND
9 - GND GND GND GND GND GND GND
10 - 5V 5V 5V 5V 5V 5V 5V
11 - I2C-SDA B4 GPIO18 (A) B4 GPIO18 (A) B4 GPIO18 (A)
12 - I2C-SCL A3 GPIO17 (A) A3 GPIO17 (A) A3 GPIO17 (A)