Updated ttwrplus build instructions

Author: n1zzo

_media/ttwrplus.jpg

@@ -117,14 +117,13 @@ source zephyr/zephyr-env.sh # You need to execute this for every new shell
 From OpenRTX root, compile with:
 
 ```
-meson setup build
-meson compile -C build openrtx_ttwrplus
+rm -rf build; meson setup build; meson compile -C build openrtx_ttwrplus_uf2
 ```
 
 Flash with:
 
 ```
-west flash
+rm -rf build; meson setup build; meson compile -C build openrtx_ttwrplus_flash
 ```
 
 Check the USB serial console with:

compiling.md

@@ -6,13 +6,14 @@ This section collects all the informations about the hardware and the OEM firmwa
 
 This table provides a glance on the underlying hardware of each of the supported platforms, for a detailed description see the individual pages linked below.
 
-| Platform |     MCU     | DMR baseband |  RF chip | Display controller |             Non volatile memory             |   GPS     |
-|----------|:-----------:|:------------:|:--------:|:------------------:|:-------------------------------------------:|:---------:|
-| MD-3x0   | STM32F405VG |   HR-C5000   | SKY73210 |       HX8302A      |              25Q128FV SPI flash             | JS-M710   |
-| MD-UV3x0 | STM32F405VG |   HR-C6000   |  AT1846S |       HX8302A      |              25Q128FV SPI flash             | JS-H210   |
-| GDx      |  MK22FN512  |   HR-C6000   |  AT1846S |       UC1701       | 25Q80BV  SPI flash +<br>AT24C512 I2C EEPROM |    -      |
-| HD1      |  MK22FN512  |   HR-C6000   |  AT1846S |                    | 25Q80BV  SPI flash +<br>AT24C512 I2C EEPROM | ST-26-U7L |
-| MD-9600  | STM32F405VG |   HR-C6000   | SKY73210 |       ST7567       |              25Q128FV SPI flash             | JS-M710   |
+| Platform   |     MCU     |   Baseband   |  RF chip | Display controller |             Non volatile memory             |   GPS     |
+|------------|:-----------:|:------------:|:--------:|:------------------:|:-------------------------------------------:|:---------:|
+| MD-3x0     | STM32F405VG |   HR-C5000   | SKY73210 |       HX8302A      |              25Q128FV SPI flash             | JS-M710   |
+| MD-UV3x0   | STM32F405VG |   HR-C6000   |  AT1846S |       HX8302A      |              25Q128FV SPI flash             | JS-H210   |
+| GDx        |  MK22FN512  |   HR-C6000   |  AT1846S |       UC1701       | 25Q80BV  SPI flash +<br>AT24C512 I2C EEPROM |    -      |
+| HD1        |  MK22FN512  |   HR-C6000   |  AT1846S |                    | 25Q80BV  SPI flash +<br>AT24C512 I2C EEPROM | ST-26-U7L |
+| MD-9600    | STM32F405VG |   HR-C6000   | SKY73210 |       ST7567       |              25Q128FV SPI flash             | JS-M710   |
+| T-TWR Plus | ESP32-S3    |   SA868S     |  AT1846S |       SH1106       |              optional microSD               | L76K      |
 
 ### Device documentation
 

hardware/hardware.md

@@ -3,9 +3,10 @@
 ![T-TWR Plus](../_media/ttwrplus.jpg)
 
 The T-TWR Plus v2.0 is a digital radio, designed and produced by LILYGO, following suggestions from the OpenRTX team.
-This device is based on an ESP32S3 microcontroller, paired with an SA868S baseband. To enable M17 and other digital
-protocols, the SA868S module has to be flashed with [sa8x8-fw](https://github.com/OpenRTX/sa8x8-fw), a Free Software firmware that gives
-OpenRTX full control over the underlying AT1846s radio-on-a-chip.
+This device is based on an ESP32S3 microcontroller, paired with an SA868S baseband.
+
+**NOTE: To be able to use OpenRTX on the T-TWR Plus you need to flash the SA868S module with [sa8x8-fw](https://github.com/OpenRTX/sa8x8-fw), a Free Software firmware that gives
+OpenRTX full control over the underlying AT1846s radio-on-a-chip. The OEM firmware cannot be flashed back at the moment as we don't possess a copy of it.**
 
 ## Hardware Revisions
 
@@ -63,3 +64,4 @@ Once the radio has been flashed at least once you can access again the tinyuf2 b
 ## References
 
 - [T-TWR Plus Schematics](https://github.com/Xinyuan-LilyGO/T-TWR/blob/master/schematic/T-TWR-Plus_Rev2.0.pdf)
+- [T-TWR Plus Support Tracking](https://github.com/OpenRTX/OpenRTX/issues/175)