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board/stm32f401rc-rs485: Add support to MAX7219 8x8 LED Matrix

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Signed-off-by: Rodrigo Sim rcsim10@gmail.com
This commit is contained in:
Rodrigo Sim
2024-07-14 18:42:27 -03:00
committed by Xiang Xiao
parent b8561558e7
commit 17aec1328a
9 changed files with 349 additions and 2 deletions
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Documentation/platforms/arm/stm32f4/boards/stm32f401rc-rs485/index.rst
+32
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@@ -632,3 +632,35 @@ Now you will be able to access the Device Configuration over Telnet::
help, ? - show help
reset - reset the board
exit - exit shell
max7219
-------
Configures the NuttShell (nsh) over USB Serial (check usbserial configuration) and enables LCD driver with
MAX7219 for 8x8 LED matrix::
NuttShell (NSH) NuttX-12.5.1
nsh>
nsh> nxhello
nxhello_main: NX handle=0x20005420
nxhello_main: Set background color=0
nxhello_listener: Connected
nxhello_main: Screen resolution (32,8)
nxhello_hello: Position (3,0)
nxhello_main: Disconnect from the server
nsh>
======= ====
MAX7219 PINS
======= ====
CS PC4
DIN PA7
Clk PA5
======= ====
As this LED matrix can be combined either horizontally or vetically,
you can configure this using menuconfig::
Number of 8x8 LEDs matrices in the horizontal (width)
Number of 8x8 LEDs matrices in the vertical (height)