30-03-2018, 07:44
Hi uncle_bob. Yes, I like Julian Illett and Big Clive's videos too and you're right, it would be great to see them build a WeatherDuino!!
Back to the Mega 2560 though and after playing around with it most of yesterday I needed something much stronger than lemonade last night and a bottle or two (or more!) of good beer helped.... (Staropramen of course if you read this Zdenek
)
I thought about your idea of using one 2560 to program another, U_B, and I do have a total of 3, but 1 is on the "operational" system that I obviously don't want to disturb, a second did program and is now on the "test" system although it isn't working properly and of course the third is the "faulty" one. So I decided to try the easiest thing first. Off the RX board of course, I powered up the "faulty" 2560 on the bench and tried programming it with my "test RX" sketch. Same thing happened as when it was on the RX board - just kept timing out. Tried a few times with the same result. I then wondered if it would accept another sketch so at random I tried the I2C_scanner. To my amazement it DID program the device!! Tried again a few times and each time it did so successfully. Thinking that perhaps something had been reset on the device, I tried the "test RX" sketch again but again it failed.
I then thought that maybe the sketch itself was somehow corrupted so tried to program a fresh, un-modified version of the b011 software and that DID program properly. Hoping I had finally solved the problem, and with the "successful" sketch still open on the computer, I went through it and did the necessary modifications. Pressed the upload key and it failed with the same "timed out" fault.... After that I spent more than an hour trying to upload *anything* to the device but it just wouldn't work again. This is all VERY strange.
Using a process of elimination I know the software is perfect and the Mega 2560 CAN work so I'm now wondering if the problem is related to my computer. I'll try installing the Arduino IDE on another machine, hopefully later today and see what happens!
Allan.
Back to the Mega 2560 though and after playing around with it most of yesterday I needed something much stronger than lemonade last night and a bottle or two (or more!) of good beer helped.... (Staropramen of course if you read this Zdenek
)I thought about your idea of using one 2560 to program another, U_B, and I do have a total of 3, but 1 is on the "operational" system that I obviously don't want to disturb, a second did program and is now on the "test" system although it isn't working properly and of course the third is the "faulty" one. So I decided to try the easiest thing first. Off the RX board of course, I powered up the "faulty" 2560 on the bench and tried programming it with my "test RX" sketch. Same thing happened as when it was on the RX board - just kept timing out. Tried a few times with the same result. I then wondered if it would accept another sketch so at random I tried the I2C_scanner. To my amazement it DID program the device!! Tried again a few times and each time it did so successfully. Thinking that perhaps something had been reset on the device, I tried the "test RX" sketch again but again it failed.
I then thought that maybe the sketch itself was somehow corrupted so tried to program a fresh, un-modified version of the b011 software and that DID program properly. Hoping I had finally solved the problem, and with the "successful" sketch still open on the computer, I went through it and did the necessary modifications. Pressed the upload key and it failed with the same "timed out" fault.... After that I spent more than an hour trying to upload *anything* to the device but it just wouldn't work again. This is all VERY strange.Using a process of elimination I know the software is perfect and the Mega 2560 CAN work so I'm now wondering if the problem is related to my computer. I'll try installing the Arduino IDE on another machine, hopefully later today and see what happens!
Allan.