Issue with firmware #6
Comments
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It seems that the FLASH or PSRAM size configuration does not match. |
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Are you using the firmware from the S3LCD_OCT_16M folder? |
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Yes, I did try the S3LCD_OCT_16M version since it is the only version
listed for the T-HMI.
According to AliExpress description, the listed memories are PSRAM 8MB, and
FLASH 16MB. The demo program that was running on it reports 16 each (PSRAM
upgraded before shipping, inaccurate listing, or programming? Unknown).
Only the Flash tool reported success, the other methods reported errors -
Thonny said header error, and I don't have the esptool logs. On reset after
Flash tool, the device started it's (dis)connect looping which continued
until I put it back into boot mode or removed it from the computer.
After several attempts, I finally gave up and searched for the Espressif
generic Micropython, which flashed the first time. Since I finally had a
success, I retried yours but still no luck.
Device currently has the generic version flashed. If the driver itself was
available, I would just drop it and a few fonts onto the device and go
from there.
I am not very familiar with C and variants nor have any environments
(except Arduino, and I don't like it) to try compiling it myself. I'm an
old BASIC programmer (mainly self taught - GWBASIC, QBASIC, BetterBASIC,
QB64, and others) and am learning (micro)Python through these
microcontrollers. I also create personal (offline) webpages incorporating
vanilla JavaScript (and used to use VBScript) to store/organise/display
information.
On my T-display, which is running your older version, I am running a
modified version of codemee's ESPWebserver (set up in SoftAP/private
network mode, displayed running information using your driver) - not pretty
but it works. I did try the Lobo firmware but like yours better; which is
why I would really like your driver on the T-HMI. My plans for the T-HMI
may be bigger than my current ability but that's what trial and error (and
plenty of backups) is for.
…On Thu, May 25, 2023, 2:59 AM Russ Hughes ***@***.***> wrote:
Are you using the firmware from the S3LCD_OCT_16M folder?
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The driver is written in C and compiled into the firmware while building the MicroPython firmware. The source for the driver is in the repo. The Python driver from https://github.com/russhughes/st7789s3_mpy should be able to drive the T-HMI display, but you will have to modify the tft_config.py code for the pins used on the T-HMI. Also, it will be much slower. Your device may have a different memory configuration (Quad SPI needing S3LCD_QUAD_16M firmware?). Can you post a link to the generic version of firmware that is working? |
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https://micropython.org/download/GENERIC_S3/
Links at bottom of page
v1.20.0 (2023-04-26) bin file
Speed, right now, is not much of an issue. I am just wanting to get things
started.
Opened your link for st7789s3_mpy.
I see the st7789.pyi and the two tft files in the examples folder (probably
won't need the button file ... yet). I think I am reasonable sure I can
modify the tft_config.py, the data is pretty clear on the T-HMI product/pin
assignment image for the dev board. I looked up pyi files, and read that
that file is basically an info or reference file (no functional code, which
explains all the "...")
Looking in all folders, I can't find the st7789s3.mpy file anywhere.
bigbuckbunny-320x240.jpg bird seems familiar, and vga1_8x8 appears to be
the font I will be using once this is up and running (should give me a nice
40x30 text layout).
…On Thu, May 25, 2023, 3:20 PM Russ Hughes ***@***.***> wrote:
The driver is written in C and compiled into the firmware while building
the MicroPython firmware. The source for the driver is in the repo.
The Python driver from https://github.com/russhughes/st7789s3_mpy should
be able to drive the T-HMI display, but you will have to modify the
tft_config.py code for the pins used on the T-HMI. Also, it will be much
slower.
Your device may have a different memory configuration (Quad SPI needing
S3LCD_QUAD_16M firmware?). Can you post a link to the generic version of
firmware that is working?
—
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Sorry that link should have been https://github.com/russhughes/t-display-s3. |
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from that link, and subfolders, I downloaded: st7789s3.py, tft_config.py,
hello.py, and vga1_8x8.py.
Using the image from https://github.com/Xinyuan-LilyGO/T-HMI image folder,
I modified tft_config.sys.
But 3 values were missing: the strobe signals (rd, wr) and the reset pins.
Using the schematic, I found and traced the rd and wr lines to pins gpio7
and 8 respectively, but no link could be found for RESET (there is a reset
for the display, but I couldn't find a GPIO for it).
Note that GPIO8 is listed as the LCD_PCLK in the image.
GPIO5 is used in the original tft_config.py for RESET, but this is labelled
for the Bat ADC
I changed it to 9, which is the only pin I couldn't trace.
I modified hello.py, changing only the font.
Big Test: the running of hello.py: something is happening but no display
activity or error returned..
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…On Fri, May 26, 2023 at 5:11 AM Russ Hughes ***@***.***> wrote:
Sorry that link should have been
https://github.com/russhughes/t-display-s3.
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Reset is tied to the processors reset line and not to an IO pin, so you can ignore it. LCD_PCLK is the WR pin(8). Pin 10 controls power to the LCD and must be set high to turn on the display. This needs to be done before you configure the display. |
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Here is a pure python driver customized for the T-HMI display. It is faster than the other driver, but not as fast as the s3lcd C driver. Edit: forgot the link to https://github.com/russhughes/thmi_py |
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First up: happy to say I finally got the st7789s3.py driver to work.
Here is my tft_config.py changes:
def config(rotation=0):
return st7789.ST7789(
Pin(46, Pin.OUT),
Pin(45, Pin.OUT),
Pin(42, Pin.OUT),
Pin(41, Pin.OUT),
Pin(40, Pin.OUT),
Pin(39, Pin.OUT),
Pin(47, Pin.OUT),
Pin(48, Pin.OUT),
Pin(8, Pin.OUT),
Pin(36, Pin.OUT),
320,
240,
reset=Pin(37, Pin.OUT),
cs=Pin(6, Pin.OUT),
dc=Pin(7, Pin.OUT),
backlight=Pin(38, Pin.OUT),
rotation=rotation)
For the RD and RESET, I used unused GPIOs (36 and 37 in this case) since it
refused to let me blank those out.
In hello.py I added:
from machine import Pin
tft_power = Pin(10, Pin.OUT)
tft_power.value(1)
I also commented out the default font and uncommented vga1_8x8
No other changes were made to any of the other files used.
Now its hello!-ing all over the place.
Next up, I will also be testing out the new THMI pure python driver you
wrote. I see the link is on the gethub response page.
I am really happy for the help you have given, its made my day (which has
been pretty crappy so far - lots of rain, minor traffic accident, no one
hurt, almost no damage to vehicles)
…On Sat, May 27, 2023 at 4:56 PM Russ Hughes ***@***.***> wrote:
Here is a pure python driver customized for the T-HMI display. It is
faster than the other driver, but not as fast as the s3lcd C driver.
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T-HMI driver worked perfectly.
Only changes anywhere were to the used font in hello.py (changed to
vga1_8x8).
On Sun, May 28, 2023, 1:58 AM James V. Fields ***@***.***>
wrote:
… First up: happy to say I finally got the st7789s3.py driver to work.
Here is my tft_config.py changes:
def config(rotation=0):
return st7789.ST7789(
Pin(46, Pin.OUT),
Pin(45, Pin.OUT),
Pin(42, Pin.OUT),
Pin(41, Pin.OUT),
Pin(40, Pin.OUT),
Pin(39, Pin.OUT),
Pin(47, Pin.OUT),
Pin(48, Pin.OUT),
Pin(8, Pin.OUT),
Pin(36, Pin.OUT),
320,
240,
reset=Pin(37, Pin.OUT),
cs=Pin(6, Pin.OUT),
dc=Pin(7, Pin.OUT),
backlight=Pin(38, Pin.OUT),
rotation=rotation)
For the RD and RESET, I used unused GPIOs (36 and 37 in this case) since
it refused to let me blank those out.
In hello.py I added:
from machine import Pin
tft_power = Pin(10, Pin.OUT)
tft_power.value(1)
I also commented out the default font and uncommented vga1_8x8
No other changes were made to any of the other files used.
Now its hello!-ing all over the place.
Next up, I will also be testing out the new THMI pure python driver you
wrote. I see the link is on the gethub response page.
I am really happy for the help you have given, its made my day (which has
been pretty crappy so far - lots of rain, minor traffic accident, no one
hurt, almost no damage to vehicles)
On Sat, May 27, 2023 at 4:56 PM Russ Hughes ***@***.***>
wrote:
> Here is a pure python driver customized for the T-HMI display. It is
> faster than the other driver, but not as fast as the s3lcd C driver.
>
> —
> Reply to this email directly, view it on GitHub
> <#6 (comment)>,
> or unsubscribe
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> .
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Hello.
First, a thank you; I have previously used your driver/firmware with a Lilygo ESP32 T-Display. It works wonderfully.
I have recently purchased some Lilygo ESP32S3 T-HMI units (240x320, Flash and PSRAM is 16MB per demo) and wanted to use your driver/firmware again. I have downloaded the firmware and tried Thonny, esptool, and the Flash Download tool to flash the firmware to said device - all failed (device keeps repeatedly connecting/disconnecting). Please note that I have downloaded and flashed the generic ESP32S3 version of Micropython 1.20.0 multiple times with no failure.
I was wondering if you have py/mpy driver(s) and config.py files that can be dropped onto the device and used with the generic ESP32S3 Micropython instead of a full firmware flash?
Also, how would one go about creating new fonts like the old 5x7 monospace/fixedsys font (I know that is telling my age) for use by the driver?
Thank you for any assistance you may render.
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