177 lines
4.7 KiB
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177 lines
4.7 KiB
ReStructuredText
.. _ronoth_lodev:
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Ronoth LoDev
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############
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========
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Overview
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========
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The Ronoth_ LoDev_ is a small open source board containing a `AcSIP S76S`_ SiP from AcSIP_.
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The `full LoDev design details`_ are available on GitHub. The LoDev_ board can be purchased
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from Ronoth_ or from CrowdSupply_.
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The S76S contains an STMicro STM32L073RZ MCU, a `Semtech SX1276`_ LoRaWAN transceiver,
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and a +20 dBm power amplifier. Refer to `AcSIP S76S Product Information Brief`_ for details.
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Zephyr applications may use the **ronoth_lodev** configuration to run on this board.
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.. figure:: img/lodev.jpg
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:align: center
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:alt: Image of Ronoth LoDev open source development board containing S76S system on a chip
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Ronoth LoDev
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`Board design files`_ are available on GitHub.
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================
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Device Resources
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================
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The embedded STMicro STM32L073RZ has some GPIOs and SPI2 internally committed to the LoRaWAN
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transceiver operation. See `internally dedicated ports`_ for a list of resources committed to this function.
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=========
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Debugging
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=========
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Programming and debugging uses the SWD port, as on any STM32 processor. An ST-LINK/V2 adapter
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may be used with the appropriate software (*st-utils* package on Linux).
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=================
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Connector Pin-Out
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=================
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The LoDev has two rows of headers. Pin 1 on both connectors is closest to the micro-USB connector on the board,
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furthest from the RF (antenna) connector.
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When viewed from the top (component) side of the board, with the micro-USB connector closest and RF (antenna)
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connector furthest away, the CN6_ connector is on the left, the CN7_ connector is on the right.
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UART1 on the S76S SiP is connected to a USB-to-UART device connected to the micro USB connector, so generally
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PA9 and PA10 are unavailable for I/Os.
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A helpful silkscreen legend is provided on the board.
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.. figure:: img/pinout.jpg
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:align: center
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:alt: Ronoth LoDev sketch with pinout
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Ronth LoDev Pinout
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.. _CN6:
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-----------
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CN6 Pin-Out
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-----------
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=== ======== ======================================================
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Pin Function Note
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=== ======== ======================================================
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1 3.3V Output 500 mA max
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2 GND
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3 PC1
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4 PC0
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5 PB8
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6 BOOT0
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7 PB7
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8 PB6
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9 PB5
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10 PD2
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11 PC12
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12 PC11
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13 PC10
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14 PA14 SWCLK
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15 PA13 SWDIO
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16 PA12
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17 PA11
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18 PA9 USB serial Tx drives this pin (input) for UART1
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19 PA10 USB serial Rx is driven by this pin (output) for UART1
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20 PA8
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=== ======== ======================================================
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.. _CN7:
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-----------
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CN7 Pin-Out
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-----------
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=== ======== ============================
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Pin Function Note
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=== ======== ============================
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1 PC2
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2 PC3
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3 nRESET
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4 PA0
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5 PA2
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6 PA3
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7 PA4
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8 PA5
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9 PA6
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10 PA7
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11 PC4
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12 PC5
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13 PB0
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14 PB1
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15 PC6
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16 PC7
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17 PC8
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18 PC9
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19 GND
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20 PA1 Used in S76S as “RF FEM CPS”
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=== ======== ============================
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.. _internally dedicated ports:
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--------------------------
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Internally Dedicated Ports
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--------------------------
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======== ======== ============= ==== =========================
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Pin name Pin Type I/O Structure Note Function
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======== ======== ============= ==== =========================
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PA15 I/O FT - INTERNAL SX1276 D5
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PB3 I/O FTf - INTERNAL SX1276 D4
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PB4 I/O FTf - INTERNAL SX1276 D3
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PB9 I/O FTf - INTERNAL SX1276 D2
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PB10 I/O FT - INTERNAL SX1276 Reset
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PB11 I/O FT - INTERNAL SX1276 D0
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PB12 I/O FT - INTERNAL SX1276 SPI nCS
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PB13 I/O FTf - INTERNAL SX1276 SPI2_SCK
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PB14 I/O FTf - INTERNAL SX1276 SPI2_MISO
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PB15 I/O FT - INTERNAL SX1276 SPI2_MOSI
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PC13 I/O FT - INTERNAL SX1276 D1
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======== ======== ============= ==== =========================
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==========
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References
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==========
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.. _Ronoth: https://ronoth.com/
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.. _LoDev: https://ronoth.com/products/lodev-s76s-lora-soc-development-board?variant=31608819417220
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.. _AcSIP: http://www.acsip.com.tw
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.. _AcSIP S76S: http://www.acsip.com.tw/index.php?action=products-detail&fid1=11&fid2=29&fid3=27&id=79&lang=3
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.. _AcSIP S76S Product Information Brief: https://www.acsip.com.tw/index.php?action=download_pro&perm=d&id=365
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.. _CrowdSupply: https://www.crowdsupply.com/ronoth/lodev
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.. _full LoDev design details: https://github.com/ronoth/LoDev
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.. _Board design files: https://github.com/ronoth/LoDev
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.. _posted on MBed by Steve Osborn: https://os.mbed.com/users/steve918/
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.. _Semtech SX1276: https://www.semtech.com/products/wireless-rf/lora-transceivers/sx1276
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=======
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License
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=======
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This document Copyright (c) 2021 Dean Weiten <dmw@weiten.com>
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SPDX-License-Identifier: Apache-2.0
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