4in1 module dead?
Posted: Wed Sep 12, 2018 11:02 pm
Short time ago, I got a new 9xr Pro and ordered a 4in1 Multi Protocol Module (Stm32..) from Banggood that arrived yesterday.
To test, if it has a firmware with a bootloader, I tried to update the firmware, using the Tx.
As expected, that did not work, so I updated the module firmware via the computer and the Arduino IDE with the "Upload via Serial inc. Bootloader (FTDI)" methode. In the first attempt this did not work, but when I exchanged Rx with Tx wire at the USB to TTL converter, it flashed the code. (powered from TX and signal voltages verified for 3.3v)
To verify, that it really had flashed the code, I again tried to update the 4in1 module using the Tx and now, it
worked.
I then tried a Flysky receiver in PPM and in serial mode and both worked also, the servos followed the sticks.
So I shut off the Tx.
This morning, I tried to bind a DSM/DSMX receiver, but nothing. Not even the Flysky receiver worked anymore.
I now see, that the only sign of life is the red LED, that flickers for about 1.5 sec when the radio is powered on.
I tried "Update Multi" from the Tx but it fails with "Flashing complete", "FAILED", 0000 0000.
There is battery power on the connector and 3.3V on the pins for the BootO jumper and on the ICSP connector pins,
but no voltage on the lowest pin (Vin) of the serial programming connector (?).
And in no way that I tried, (Serial mode for Flysky or DSM, PPPM mode with selector switch in Position 1=A7105, 4=CC2500, 7=CYRF6936, 11=NRF24L01) there is any Rf radiation (Wifi detector).
I tried to reflash the module with "firmware with bootloader" but I always get a "failed to init device" message
when it tries to uplode the code.
Is my module dead (after one hour) ??
Reinhard
To test, if it has a firmware with a bootloader, I tried to update the firmware, using the Tx.
As expected, that did not work, so I updated the module firmware via the computer and the Arduino IDE with the "Upload via Serial inc. Bootloader (FTDI)" methode. In the first attempt this did not work, but when I exchanged Rx with Tx wire at the USB to TTL converter, it flashed the code. (powered from TX and signal voltages verified for 3.3v)
To verify, that it really had flashed the code, I again tried to update the 4in1 module using the Tx and now, it
worked.
I then tried a Flysky receiver in PPM and in serial mode and both worked also, the servos followed the sticks.
So I shut off the Tx.
This morning, I tried to bind a DSM/DSMX receiver, but nothing. Not even the Flysky receiver worked anymore.
I now see, that the only sign of life is the red LED, that flickers for about 1.5 sec when the radio is powered on.
I tried "Update Multi" from the Tx but it fails with "Flashing complete", "FAILED", 0000 0000.
There is battery power on the connector and 3.3V on the pins for the BootO jumper and on the ICSP connector pins,
but no voltage on the lowest pin (Vin) of the serial programming connector (?).
And in no way that I tried, (Serial mode for Flysky or DSM, PPPM mode with selector switch in Position 1=A7105, 4=CC2500, 7=CYRF6936, 11=NRF24L01) there is any Rf radiation (Wifi detector).
I tried to reflash the module with "firmware with bootloader" but I always get a "failed to init device" message
when it tries to uplode the code.
Is my module dead (after one hour) ??
Reinhard