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Monday, 16 January 2017
VLF/LF Receiver implemented in microprocessor - Hardware Configuration (Part 3 of n)
This post assumes that the RF pre-amp and audio out circuits have been built as described by I2PHD in his original paper found under the ARM Radio section of his website.
Microprocessor - STM32F746-Nucleo board.
LCD - ILI9341 driver, looks the same as this one
Rotary encoder with integrated push switch
My code uses the following pin connections:
Component Pin STM32F746 Pin
LCD_D0 PC0
LCD_D1 PC1
LCD_D2 PC2
LCD_D3 PC3
LCD_D4 PC4
LCD_D5 PC5
LCD_D6 PC6
LCD_D7 PC7
LCD_RST PE2
LCD_CS PE3
LCD_RS PE4
LCD_WR PE5
LCD_RD PE6
Rotary encoder clockwise PB4
Rotary encoder anti-clockwise PB5
Rotary encoder centre GND
Rotary encoder push button PA0
RF In PA3
Audio Out PA4
In the next post I will describe the code I have added to support the rotary encoder functionality as well as the changes to the screen layout.
The cide is available on github link
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