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stm32h7/linum-stm32h753bi: Add buzzer support

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Signed-off-by: Jorge Guzman <jorge.gzm@gmail.com>
This commit is contained in:
Jorge Guzman
2024-03-16 10:15:37 -03:00
committed by Xiang Xiao
parent a7ba822389
commit 8e0bf9a0b4
10 changed files with 269 additions and 45 deletions
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Documentation/platforms/arm/stm32h7/boards/linum-stm32h753bi/index.rst
+59 -43
View File
@@ -49,6 +49,8 @@ Expansion connector 2 features.
- 6 PWM Channels
- 10 ADCs
Board documentation: https://wittetech.com/
LEDs
====
@@ -301,42 +303,37 @@ LCD
=======
The LINUM-STM32H753BI use the LTDC to support one LCD with RGB connection.
=========== =====
LTDC PINS
=========== =====
LTDC_B0 PF0
LTDC_B1 PJ13
LTDC_B2 PJ14
LTDC_B3 PJ15
LTDC_B4 PK3
LTDC_B5 PK4
LTDC_B6 PK5
LTDC_B7 PK6
LTDC_CLK PI14
LTDC_DE PK7
LTDC_G0 PJ7
LTDC_G1 PJ8
LTDC_G2 PJ9
LTDC_G3 PJ10
LTDC_G4 PJ11
LTDC_G5 PK0
LTDC_G6 PK1
LTDC_G7 PK2
LTDC_HSYNC PI10
LTDC_R0 PI15
LTDC_R1 PJ0
LTDC_R2 PJ1
LTDC_R3 PJ2
LTDC_R4 PJ3
LTDC_R5 PJ4
LTDC_R6 PJ5
LTDC_R7 PJ6
LTDC_VSYNC PI9
=========== =====
============= =====
PWM PINS
LTDC PINS
============= =====
LTDC_B0 PF0
LTDC_B1 PJ13
LTDC_B2 PJ14
LTDC_B3 PJ15
LTDC_B4 PK3
LTDC_B5 PK4
LTDC_B6 PK5
LTDC_B7 PK6
LTDC_CLK PI14
LTDC_DE PK7
LTDC_G0 PJ7
LTDC_G1 PJ8
LTDC_G2 PJ9
LTDC_G3 PJ10
LTDC_G4 PJ11
LTDC_G5 PK0
LTDC_G6 PK1
LTDC_G7 PK2
LTDC_HSYNC PI10
LTDC_R0 PI15
LTDC_R1 PJ0
LTDC_R2 PJ1
LTDC_R3 PJ2
LTDC_R4 PJ3
LTDC_R5 PJ4
LTDC_R6 PJ5
LTDC_R7 PJ6
LTDC_VSYNC PI9
PWM_BACKLIGHT PH6
============= =====
@@ -352,15 +349,15 @@ The LINUM-STM32H753BI has one I2S output.
I2S2_SDO PI3
======== =====
BUZZER
PWM
=======
The LINUM-STM32H753BI has a buzzer without internal oscillator
The LINUM-STM32H753BI has a buzzer without internal oscillator connected to PB7
======= =====
GPIO PINS
======= =====
BUZZER PC13
======= =====
========= =====
GPIO PINS
========= =====
BUZZER PB7
========= =====
==============
@@ -451,10 +448,29 @@ The SD card can then be mounted by the NSH commands::
eeprom
------
Use dd command to write and read data from EEPROM as below:::
Use **dd** command to write and read data from EEPROM as below:::
nsh> dd if=/dev/console of=/dev/eeprom bs=1 count=35
Witte-Tech Linum-STM32H753BI board
nsh> dd if=/dev/eeprom of=/dev/console bs=4 count=35
Witte-Tech Linum-STM32H753BI board
nsh>
nsh>
buzzer
------
This example use the timer 4 with channel 2 to generate a PWM output signal on buzzer pin::
nsh> ls /dev
/dev:
console
null
pwm0
rtc0
ttyS0
nsh> pwm -d 75 -t 3
pwm_main: starting output with frequency: 100 duty: 0000bfff
pwm_main: stopping output
nsh> pwm -f 300 -t 3
pwm_main: starting output with frequency: 300 duty: 0000bfff
pwm_main: stopping output