u-blox NORA-W10 Series - Software; SDK for Open CPU Modules; Developing and Flashing NORA-W10 Open CPU Software

NORA-W10 series - System integration manual
UBX-22005601 - R04 Software Page 29 of 56
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4 Software
4.1 SDK for Open CPU modules
As NORA-W10 Open CPU modules are delivered without flashed software, you develop your
application design using the utilities and device-level APIs supported by the module chipset supplier.
The ESP-IDF Software Development Kit [6] is available from the Espressif website. It bundles the
Wi-Fi stack and the broad range of drivers and libraries necessary for building your development
environment.
Figure 10 shows the architecture of NORA-W10 Open CPU software in relation to the MCU,
transceiver and ESP-IDF SDK.
Figure 10: NORA-W10 open CPU software
4.2 Developing and flashing NORA-W10 Open CPU software
It is recommended to make following pins available through a header or similar connector:
• RESET_N
• U0TXD
• U0RXD
• GPIO0
• MTDO
• MTDI
• MTMS
• MTCK
• USB_D+
• USB_D-
For the Espressif SDK documentation, see also reference [7]. This URL provides information on how
to set up the software environment using the hardware based on the Espressif ESP32-S3. This
resource also describes how to use the latest ESP-IDF (Espressif IoT Development Framework) –
which might have been changed since the publication of this document.