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--- qrp_labs_qcx_firmware [2019/06/05 18:32] – admin
+++ qrp_labs_qcx_firmware [2021/10/09 15:14] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 =====QRP Labs - QCX firmware upgrade with Raspberry Pi=====
--06-02 - Using a Raspberry Pi as AVR programmer. I connected it with power on the QCX, did not use the 5V supply from the Raspberry Pi.
-{{:img_1746.jpg?nolink&600|}}
+**<color #ed1c24>I now use the: [[qcx_firmware_usbtinyisp|USBTinyISP]] method.</color>**
+Using a Raspberry Pi board as AVR programmer to update the QRP Labs QCX transceiver's firmware. The power draw from the QCX to the RPi seemed a bit too much, so I did not use the RPi 5v output.
+{{::img_2158.jpg?nolink&600|}} \\
+//Photo of older version firmware, i'm now at v1.05.//
+{{::img_2155.jpg?nolink&600|}}
 ====Requirements====
-  * Raspberry Pi (I used a model B+ V1.2 board from 2014).
+  * Raspberry Pi (I used a 3 model B+ board from 2017).
-  * Built and working QCX tranceiver. Website: [[http://qrp-labs.com/qcx.html]]
+  * Raspbian (based on Debian Buster). Using ''/boot/ssh'' and ''/boot/wpa_supplicant.conf'' for headless install.
+  * A built and working QCX tranceiver. Website: [[http://qrp-labs.com/qcx.html]]
   * Jumper wires.
+  * QCX Firmware [[https://www.qrp-labs.com/qcx/qcxfirmware.html]].
+  * **Connect a dummy load! I did see a unit going into transmit when connected to the RPi, during flashing transmit was off. I haven't investigated how and why this happens.**
 ====Configure raspbian====
-  * Enable spi <code>dtparam=spi=on</code>
+  * Enable spi in ''/boot/config.txt'' and reboot: <code>dtparam=spi=on</code>
   * Install avrdude:<code>sudo apt install avrdude</code>
@@ Line 17: / Line 26: @@
 <code>
-============
 Raspberry Pi
-============
+=========================================
-BCM 9  (MISO)
+            (Right board edge)
-BCM 10 (MOSI)
+                   |
-BCM 11 (SCLK)
+oo|2
-BCM 25 (RESET)
+oo|4
-Ground
+oo|6
+oo|8
+oo|10
+oo|12
+oo|14
+oo|16
+oo|18
+BCM 10 MOSI - 19 oo|20
+BCM  9 MISO - 21 oo|22 BCM 25 RESET
+BCM 11 SCLK - 23 oo|24
+        GND - 25 oo|26
+<snip>
-============
 QCX
-============
+=========================================
 (left board edge)
@@ Line 42: / Line 63: @@
 </code>
-====programming====
+====Programming====
-  * Check connection:<code>sudo avrdude -p atmega328 -c linuxspi -P /dev/spidev0.0 -v -b19200</code>
+  * Check connection:<code>sudo avrdude -p atmega328p -c linuxspi -P /dev/spidev0.0 -v -b19200</code>
-  * Program latest firmware:<code>sudo avrdude -p atmega328 -c linuxspi -P /dev/spidev0.0 -v -b19200 -U flash:w:T1.00g.hex</code>
+  * Program latest firmware:<code>sudo avrdude -p atmega328p -c linuxspi -P /dev/spidev0.0 -v -b19200 -U flash:w:T1.04.hex</code>