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@KurtE

Dug out a pot and hooked into the T3.6 and then ran you updated DMA example. Bottom line up front it works great. Also works no problem with compare. Haven't tried playing with other...

Morning again.

Anyway, ran the Simple USB Keyboard Example, simple.ino, under keyboard examples. Nothing else was hooked up to the T4. Was using a the Ultimate T4 breakout board I got off...

@Paul

Downloaded and installed Beta2 with no issues whatsoever. Did see all the new USB stuff in the IDE dropdowns.

Out of curiosity I tried to run the keyboard simple example but my PC is...

Thanks not a problem should have mentioned it sooner. That's what I get for taking a nap. :)

@PaulStoffregen
PR has already been issued for the updated ST7735_t3 lib.

Do you think you can get the PR incorporated for Wire library in the 1.49-beta2 release or is it too late?

Paul I think you are referring to the PR I did for the Encoder registers. Based on your preference I will redo the structure and ensure it retains the original register names. May have to do a...

@KurtE
Library taking shape. Instead of the ringbuffer @tonton81 has his circular buffer library not sure which is better. Will look at ring buffer tomorrow but wanted to let you know that I did...

As a quick suggestion try adding Wire.setClock(100000); after temp.begin(). The other possibility is that the pullups should be reduced to 2.2K's

@KurtE
Just as a FYI I pushed some addition changes to the Compare WIP branch. I did test out the compare and compare range and they seem to be working. The only other change is that I made the...

@KurtE

Figured out what was happening with analogRead when doing implementing compare with the T4. The current analogRead gets stuck in in infinite loop on:

while (!(_padc.HS & ADC_HS_COCO0))...

@KurtE

Sorry for the delay. I downloaded the latest and greatest and going to have to change the enabling of the compare function. Decided to add this to the code as a test:

...

@KurtE
Interesting thing I just found out during testing using on the CMP function.

Since ACMP is on pins 26 and 27 you have to change the resolution on the adc1 (ADC4) to match the what...

@KurtE

Just added the last of the basic ADC functions, setOffset, to the base class.

Started looking at using the ADC_test sketch for some of this. But lost on checking errors. Not sure this...

@KurtE
Though I had a problem with the compare code the after an hour or so realized I forgot to make a change in to use ACMP4 for the results. So code seems to be working.

As for the branches I...

@KurtE
Yep added some stuff - basically the equivalent Compare functions for ACMP3 and ACMP4. Only tested a small piece of it. Think there is only one more easy piece to put in and that for adc...

@KurtE et.al.

Added the ADC compare piece of the puzzle. Only tested on case for comparing on one value. Still needs some work - since I think I messed upped what pins are on what adc in code. ...

I will second that sentiment @KurtE.

@KurtE - I can only imagine :). Enjoy. Getting back to looking at CMP again. So probably will work on it tomorrow - getting late now.

Just a quick status. Left it on for 4 hours last know. PC went to sleep. When I woke it up it was still running and spewing data. The processing sketch picked up as well.

@KurtE

Sorry for the delay but its probably not a bad idea. As we get more into the pins configs it will save from having to copy it in the libs all the time.

Glad you added xbara2 and xbara3....

@KurtE, @manitou, ...

For xbara1 stuff you can check out how I did I set it up for the encoder library. Made it pretty general or maybe not:...

Good Morning @KurtE - days are all beginning to merge into one.

Solved my issue to get the current bits for adiv and clk and incorporated into the function. I also just pushed it to GitHub.
...

@KurtE
Got the hack working, now you have more options than you can shake a stick for adc clock speed. Only thing I need to fix is:

//ADC1
//NOTE: Only works once - have to change ADIV and...

@KurtE
Working on the clock module now - not sure I am doing it right I will post when I get done. Trying to understand as I go then next up I think is the Compare which is a bit more complicated...

@KurtE
Thanks. Didn't look in that doc - thought that would have been in the RM as well.

@KurtE et.al.

Trying to understand a bit more about the ADC clocks. Understand about using the IPG clock (also more noisy) but a bit confused on the Async Clock (ADACK). According to RM the...

@jonr - @KurtE

To test my theory of the changing the ADC clock i first ran the sketch in @KurtE's new version of the library for a baseline:

8:2:2:2(000005b3 00000000)> 255 6 7 : 255 0 8 : 255...

@jonr - might be possible to get better. Right now the adc clock defaults to 20mhz. Not sure but if you change it to 40mhz it should be faster.

Just received my MLX90640 110FOV from sparkfun. Hooked it up to a Teensy 4.0 and a Teensy 3.5. In both cases it showed temp data and using the processing sketch it showed the thermal image as...

@luni
Thank for testing and glad its working. I forget to post that I did play around with your test sketch and seemed to be working. Got side tracked on other diversions which is way too common...

Sorry I missed this earlier. MotionCal only calibrates the magnetometer and I believe when you run the examples sketches using the motionsense library it does do a quick calibration for the gyro but...

ok - thanks - Reason I asked is that I ordered one of the sparkfun boards and should have it today.

@Sam_in

Quick question did you still use the Sparkfun library?

@KurtE
Good morning again :)

Think you are right about repackaging the test stuff. Make it look more like how the ADC.lib is organized in terms of function names.

What I posted showed that all its doing is recalibrating the magnetometer when you power up. Which is just moving the sensor slightly on power up.

As for your other question on stability data of...

@KurtE - Good Morning as well.

As for ADC DMA think @manitou was playing with that in the beta thread:...

Just tried the restore_offset sketch on the Teensy 4.0.

On initial calibration when calibration is completed I see this:

Fully calibrated!

--------------------------------

Calibration...

@KurtE

Did a quick and dirty test with the following 2 functions added to the sketch:

void setShortConvTime(uint8_t adc_num){
uint32_t tmp32, mode;

tmp32 = ADC_CFG_ADSTS(0); //set...

Well can you give me a bit more information. What Teensy are you using? You know it might not be the calibration but the environment you are in. Also not sure what you mean by noisy and random? Is...

Take a look at the example sketch "restore_offsets.ino".

That example sketch stores the calibration data in the Teensy EEPROM if the calibration data is not already stored and if it is will reload...

@KurtE

Head is still in a fog but it looks like all you did was
ADC_CFG_ADSTS(3) to
ADC_CFG_ADSTS(0),i.e., sample time duration from 17 to 2 clocks? Understand that part but then when I read...

@KurtE
Think you need to leave in the while(….) for doing the calibration. As for the wait_for_cal function we can probably get rid of it of just put the same lines of code in for calibration as in...

@KurtE
To be honest was wondering myself. Since you are testing ADCx_GC & ADC_GC_CAL to see if cal is completed in a while loop calibration is completed when it comes out of the loop. Would think...

@KurtE
Yeah that's probably better change in wait_for_cal - couldn't sleep so jump on line while Theraflu was working :) That function is only used once in the analogRead function:

if...

@KurtE

Nice catch and thanks for correcting. Checked Analog Resolution function to make sure that didn't have the same problem, but that was set up a bit differently so its ok.

Think there is...

@KurtE

Yep it handles them but it setups up the same resolution and averaging for both channels (ADC1 and ADC2). At least I think that is how it is currently working. Changing it this way allows...

@KurtE - @tasha
Ok tried the other route and adds too much complexity to the situation. So I just added T4AnalogReadRes(pin, adc) as well as T4AnalogReadAveraging(pin, adc) .

18320

@KurtE - @Paul

Was going through analog.c again and was thinking since this is a lite version in order support the second ADC would it be better just to update analog.c to support the second adc?

@KurtE
Thanks. Going to have to update a couple of other functions as well. AnanlogResolution and analogreadaveragering. Just as a note may have to use that other function on reinitialiaztion of...

As @tonton81 suggested not sure if you have your connections correct but another sure way to test is to run a I2C scanner. If it comes back with the I2C address of the device you know you have it...