Differences

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--- packet:mmdvm-tnc [2023/10/08 09:57] – [Flashing from the web] m0lte
+++ packet:mmdvm-tnc [2024/04/14 11:22] – [Building and flashing from source] m0lte
@@ Line 14: / Line 14: @@
 ===== Preparation =====
-Burn Raspberry Pi OS Lite (tested on 32 bit) to a micro SD, boot it
+Tested on 32 bit Bullseye Raspi OS
-`sudo raspi-config` → interfaces → serial shell disabled, serial port enabled
+Verified to NOT work on 64 bit
+Verified to NOT work on Bookworm, only Bullseye, due to /sys/class/gpio/export deprecation
+Burn Raspberry Pi OS Bullseye 32 bit Lite to a micro SD, boot it
+''sudo raspi-config'' → interface options → serial port → serial shell disabled, serial port enabled
 Then:
@@ Line 26: / Line 32: @@
 # Fetch the flashing tool
-curl -OL https://www.bi7jta.org/files/MMDVM_Firmware/repeater_HAT/stm32flashV5
+curl -OLs https://www.bi7jta.org/files/MMDVM_Firmware/repeater_HAT/stm32flashV5
 chmod +x stm32flashV5
-</code>
-===== Flashing from the web =====
+sudo reboot
-Unplug the board from the header
-Run the following:
-<code>
-curl -O https://mmdvm-tnc.s3.eu-west-2.amazonaws.com/mmdvm-f4-simplex.hex
-while ! sudo ./stm32flashV5 -v -w mmdvm-f4-simplex.hex -R -i 20,-21,21:-20,-21,21 /dev/ttyAMA0; do echo Again; done
 </code>
-Carefully but swiftly (!) plug the board into the header
+===== Building and flashing from source =====
-This is required because of some capacitor in the wrong charge state and there may be some workaround coming.
-===== Building and flashing from source (hard(ish) mode) =====
 <code>
@@ Line 56: / Line 48: @@
 </code>
-Make Config.h look like this:
+Run:
-<code>
-#define CONFIG_H
-#define EXTERNAL_OSC 12000000
-#define STM32F4_NUCLEO_MORPHO_HEADER
-#define SERIAL_SPEED    115200
-// Select the initial packet mode
-// 1 = 1200 bps AFSK AX.25
-// 2 = 9600 bps C4FSK IL2P
-#define INITIAL_MODE    2
-// TX Delay in milliseconds
-#define TX_DELAY        300
-// P-Persistence in x/255
-#define P_PERSISTENCE   63
-// Slot Time in milliseconds
-#define SLOT_TIME       100
-// Set Duplex, 1 for full duplex, 0 for simplex
-#define DUPLEX          0
-// Select use of serial debugging
-#define SERIAL_DEBUGGING
-// Baud rate for serial debugging.
-#define DEBUGGING_SPEED 38400
-// Set the receive level (out of 255)
-#define RX_LEVEL        128
-// Set the mode 1 transmit level (out of 255)
-#define MODE1_TX_LEVEL  128
-// Set the mode 2 transmit level (out of 255)
-#define MODE2_TX_LEVEL  128
-// Use pins to output the current mode via LEDs
-#define MODE_LEDS
-</code>
-then run:
 <code>
@@ Line 109: / Line 57: @@
 <code>
-wget -q https://www.bi7jta.org/files/MMDVM_Firmware/repeater_HAT/stm32flashV5
+mv ../stm32flashV5 .
-chmod +x stm32flashV5
+while ! sudo ./stm32flashV5 -v -w bin/mmdvm_f4.hex -R -i 20,-21,21:-20,-21,21 /dev/ttyAMA0; do echo Again; done
-sudo ./stm32flashV5 -v -w bin/mmdvm_f4.hex -R -i 20,-21,21:-20,-21,21 /dev/ttyAMA0
 </code>
+Carefully but swiftly (!) plug the board into the header. If it fails, unplug the board for a while and leave it before trying again later. A minute or two should be fine.
+This is required because of some capacitor in the wrong charge state and there may be some workaround coming.
 ===== Testing notes =====
@@ Line 140: / Line 92: @@
 <code>
 sudo python3 kiss-ax25-ui-batch.py /dev/ttyAMA0 115200 A0AAA B0BBB 100 "Hello world" 100 1
+</code>
+This will listen:
+<code>
+sudo python3 kiss-listen.py /dev/ttyAMA0 115200
 </code>