| .. _ronoth_lodev: |
| |
| Ronoth LoDev |
| ############ |
| |
| ======== |
| Overview |
| ======== |
| |
| The Ronoth_ LoDev_ is a small open source board containing a `AcSIP S76S`_ SiP from AcSIP_. |
| The `full LoDev design details`_ are available on on GitHub. The LoDev_ board can be purchased |
| from Ronoth_ or from CrowdSupply_. |
| |
| The S76S contains an `STMicro STM32L073RZ`_ MCU, a `Semtech SX1276`_ LoRaWAN transceiver, |
| and a +20 dBm power amplifier. Refer to `AcSIP S76S Product Information Brief`_ for details. |
| |
| Zephyr applications may use the **ronoth_lodev** configuration to run on this board. |
| |
| .. figure:: img/lodev.png |
| :width: 291px |
| :align: center |
| :height: 217px |
| :alt: Image of Ronoth LoDev open source development board containing S76S system on a chip |
| |
| Ronoth LoDev |
| |
| `Board design files`_ are available on GitHub. |
| |
| ================ |
| Device Resources |
| ================ |
| |
| The embedded `STMicro STM32L073RZ`_ has some GPIOs and SPI2 internally committed to the LoRaWAN |
| transceiver operation. See `internally dedicated ports`_ for a list of resources committed to this function. |
| |
| ========= |
| Debugging |
| ========= |
| |
| Programming and debugging uses the SWD port, as on any STM32 processor. An ST-LINK/V2 adapter |
| may be used with the appropriate software (*st-utils* package on Linux). |
| |
| ================= |
| Connector Pin-Out |
| ================= |
| |
| The LoDev has two rows of headers. Pin 1 on both connectors is closest to the micro-USB connector on the board, |
| furthest from the RF (antenna) connector. |
| |
| When viewed from the top (component) side of the board, with the micro-USB connector closest and RF (antenna) |
| connector furthest away, the CN6_ connector is on the left, the CN7_ connector is on the right. |
| |
| UART1 on the S76S SiP is connected to a USB-to-UART device connected to the micro USB connector, so generally |
| PA9 and PA10 are unavailable for I/Os. |
| |
| A helpful silkscreen legend is provided on the board. |
| |
| .. figure:: img/pinout.png |
| :width: 600px |
| :align: center |
| :alt: Ronoth LoDev sketch with pinout |
| |
| Ronth LoDev Pinout |
| |
| .. _CN6: |
| |
| ----------- |
| CN6 Pin-Out |
| ----------- |
| |
| === ======== ====================================================== |
| Pin Function Note |
| === ======== ====================================================== |
| 1 3.3V Output 500 mA max |
| 2 GND |
| 3 PC1 |
| 4 PC0 |
| 5 PB8 |
| 6 BOOT0 |
| 7 PB7 |
| 8 PB6 |
| 9 PB5 |
| 10 PD2 |
| 11 PC12 |
| 12 PC11 |
| 13 PC10 |
| 14 PA14 SWCLK |
| 15 PA13 SWDIO |
| 16 PA12 |
| 17 PA11 |
| 18 PA9 USB serial Tx drives this pin (input) for UART1 |
| 19 PA10 USB serial Rx is driven by this pin (output) for UART1 |
| 20 PA8 |
| === ======== ====================================================== |
| |
| .. _CN7: |
| |
| ----------- |
| CN7 Pin-Out |
| ----------- |
| |
| === ======== ============================ |
| Pin Function Note |
| === ======== ============================ |
| 1 PC2 |
| 2 PC3 |
| 3 nRESET |
| 4 PA0 |
| 5 PA2 |
| 6 PA3 |
| 7 PA4 |
| 8 PA5 |
| 9 PA6 |
| 10 PA7 |
| 11 PC4 |
| 12 PC5 |
| 13 PB0 |
| 14 PB1 |
| 15 PC6 |
| 16 PC7 |
| 17 PC8 |
| 18 PC9 |
| 19 GND |
| 20 PA1 Used in S76S as “RF FEM CPS” |
| === ======== ============================ |
| |
| .. _internally dedicated ports: |
| |
| -------------------------- |
| Internally Dedicated Ports |
| -------------------------- |
| |
| ======== ======== ============= ==== ========================= |
| Pin name Pin Type I/O Structure Note Function |
| ======== ======== ============= ==== ========================= |
| PA15 I/O FT - INTERNAL SX1276 D5 |
| PB3 I/O FTf - INTERNAL SX1276 D4 |
| PB4 I/O FTf - INTERNAL SX1276 D3 |
| PB9 I/O FTf - INTERNAL SX1276 D2 |
| PB10 I/O FT - INTERNAL SX1276 Reset |
| PB11 I/O FT - INTERNAL SX1276 D0 |
| PB12 I/O FT - INTERNAL SX1276 SPI nCS |
| PB13 I/O FTf - INTERNAL SX1276 SPI2_SCK |
| PB14 I/O FTf - INTERNAL SX1276 SPI2_MISO |
| PB15 I/O FT - INTERNAL SX1276 SPI2_MOSI |
| PC13 I/O FT - INTERNAL SX1276 D1 |
| ======== ======== ============= ==== ========================= |
| |
| ========== |
| References |
| ========== |
| |
| .. _Ronoth: https://ronoth.com/ |
| |
| .. _LoDev: https://ronoth.com/products/lodev-s76s-lora-soc-development-board?variant=31608819417220 |
| |
| .. _AcSIP: http://www.acsip.com.tw |
| |
| .. _AcSIP S76S: http://www.acsip.com.tw/index.php?action=products-detail&fid1=11&fid2=29&fid3=27&id=79&lang=3 |
| |
| .. _AcSIP S76S Product Information Brief: http://www.acsip.com.tw/upload/product_attach/S76S_Brief_ver02.pdf |
| |
| .. _CrowdSupply: https://www.crowdsupply.com/ronoth/lodev |
| |
| .. _full LoDev design details: https://github.com/ronoth/LoDev |
| |
| .. _Board design files: https://github.com/ronoth/LoDev |
| |
| .. _posted on MBed by Steve Osborn: https://os.mbed.com/users/steve918/ |
| |
| .. _STMicro STM32L073RZ: STMicro STM32L073RZ |
| |
| .. _Semtech SX1276: https://www.semtech.com/products/wireless-rf/lora-transceivers/sx1276 |
| |
| ======= |
| License |
| ======= |
| |
| This document Copyright (c) 2021 Dean Weiten <dmw@weiten.com> |
| |
| SPDX-License-Identifier: Apache-2.0 |
