openrcforums

Yes you are right, one resistor the same, the other double (ish). Here is how I'm connecting to the serial pins on the M64: M64Serial.jpg This way, I only do the difficult/fiddly soldering once, but I can now solder to the little piece of stripboard many times without damaging the main board. I did ...

In the model setup menu there are options for the timer value, Trigger, TriggerB and count up/down. Try: Timer value: 01:00 Trigger: TRNm TriggerB: --- Timer: count down. This will set the main timer (timer 1) to start at 1 minute, and start/stop counting when you flip the trainer switch (m for mome...

My time is limited this week. I have tested sending serial data to a PC, works fine. I don't think there will be any hardware changes for all the serial operations, but it will take some time to do all the software. The existing file system (FATFS) code only handles reading files. To make use of the...

I have an odd setup for testing, just a main board with power. I may have signals of the wrong amplitude. My beeper signal is coming from pin 1 of the 6 way connector, just to the right of the LCD connector (the pin furthest from the LCD connector). But I don't have any load on this signal, it is no...

Is there a particular reason you want such a version?

Mike.

Commercial systems typically use only 80-90% of the available servo movement for their output controlled by the sticks, leaving the rest for use by the trims. So in er9x terms, they might go from -80 to +80 with centre trims, but with full trim one way go from -100 to +60, and full trim the other wa...

r777 removed the hard coded FrSky alarms. The S, A and V otptions are in the safety switches, on the LEFT. You use a custom switch to detect an alarm event, this is the " V<ofs A1 10.5V ". The field at the right on the custom switch page is an extra AND switch option. If a switch is in the...

The LM386 supply voltage won't change the output volume unless the signal is larger. You have a 4K7 to ground from pin 3 (voice), and a 1K to ground from pin 2 (beeper). To increase the volume, make these larger values. Check you have the volume set to 7 as well! Mine is quite loud, maybe try a diff...

I'm not sure there is anything much written up properly. Eepe does support the new functionality, easiest to play there to what can be set up. Basically, the safety switches now have alternative uses, the default S is safety, A and V are for alarm and voice. To get an alarm on a safety switch, you s...

If you have a Tx module in the student radio, and don't turn the student radio on, then the student Tx module will not be powered properly, and the student radio will try to send PPM out of the trainer port. You do need the student radio on for this configuration.

Mike.

The numbers aren't announced it tells only "meters......meters........meters" If I set it to A2 on the safety switches setting than it will say "volts......volts......volts" Once again, the numbers are not announced. Where to download the latest voice files? The files are at the...

LOW 0xFF, HIGH 0xD7, EXTENDED 0xFD, I was just trying to indicate what the changes do.

Mike.

You have the bootloader fuse ON. As you have programmed the '328 without using the bootloader, it is likely the bootloader has now been erased. You need the HIGH byte of the fuses set to 0xDF so the loaded program starts, and to 0xD7 to prevent erasing the EEPROM when programming.

Mike.

Sounds like you haven't downloaded the hex file correctly. If you go to the trunk on the project page, and right click on the file amod_last.hex to save it, you get a HTML page saved. Instead, click the file amod_last.hex to open this page, then on the right is a link to View raw file, right click t...

João: Have you programmed the fuses at all? By default, the CLKDIV8 fuse is programmed, together with setting the clock to the internal 8MHz oscillator, resulting in a 1MHz clock. Your programming clock must be less than a quarter of this, so less than 250kHz. Did I understand you have a STK500 you ...

I know it's a nuiscance, but could you try one or two er9x revisions betweem 736 and 777? Something has changed to cause the problem, and it would be helpful to narrow the changes made to find the exact cause. There were some major changes done for the NMEA version in r773, it is possible they have ...

Where did you get the hex file from? Which version of AVR Studio are you using?
A hex file produced for the Mega88 will not run on the '328 as the interrupt vectors are different sizes.

Mike.

Resistor side, NOT the via which goes directly to the trim switch, we need the resistor to prevent a short when the tri switch is pressed. I haven't had time to wire my breadboard to those pins yet, I've got wires on the pins ready though. Unfortunately, I'm going to have to do some 'real' work this...

I have some of this, or something similar, already coded! It's in er9x r777, I just haven't had time to release the ersky9x version. Remember, not everyone will have the encoder, so MENU and EXIT still need to be available for them. I'll try to get a release out, but this week is going to be taken u...

I just had a look at the code, which I believe has not changed for some time. When on the "JETI" screen, UP, DOWN, LEFT and RIGHT keystrokes are NOT processed by er9x, instead they are transmitted to the JETI telemetry. The screen just displays data as received from the JETI telemetry. It ...

That's quite a lot of work, need to put a GUI front end in, then add ymodem protocol and code to handle the serial interface. It's not impossible, but time is needed.

Mike.

Oh, right. I had assumed the pads were for a micro SD socket, not a connector to a remote socket. Should work fine.
Yes, it looks like eepe will work as a programmer for the '328.

Mike.

Edit: Just added the M88 to eepe as an option and it programmed my Mega88 I'm testing with.

Hageha: Looking good. Just one question, you don't have a programming header, how are you going to program the M328?

Mike.

It's on its way! I've been working on the 'new' voice module, so haven't had time to progress it. I'm adding some 'Globla Variables" (GVARS). These will be controlled by any if the 4 trims switch pairs, or by the rotary encoder, if fitted, or by other things, not currently defined. You will be ...

I don't know. I don't have a JETI setup to test it with. Is it just a telemetry display problem, or does the Tx not work or let you get to menus?

Mike.

I was just going to look intop this! I'll commit the change to the source code, I have to get Erazz to do the build, it's all done under linux and I don't have a version of linux. I tried under windows, complete failure! Romolo: Did you locate the bug from the trace above? Mike. Edit: Updated source...

Hageha: Have you laid it out for a resonator, rather than a crystal? I can't see the two small capacitors we should have for a crystal. I think we should use a crystal for best voice output and baud rate generation. I'm thinking about a stripboard version. We have added lots of nice extra functional...

You can use 6V if you wish, The 5V connection on the serial interface is the RS232 voltage and this may be as hign as 12V. If you use more than 6V, just increase the value of the 2K2 resistor so you get 2-3mA through it when the transistor is ON. Not so much the flash, mor we dont have the pins spar...

Here is the extra circuitry to provide a serial connection to a PC as well as the connection to the M64. You can't use poth at the same time, obviously, as there is only the one serial port on the '328. Serial2.png I have successfully sent data from the '328 to the PC, and I can see correct data arr...

Just to be clear, that layout is NOT stripboard, it's a proper, 2-sided, PCB layout. I wanted to see how small I could get it.
I'll post the circuit as soon as I have tested the serial interface to the PC.

Mike.