Rezo

I think it might have more to do with the ER-TFTM101-1 display as I am using the same length wires as well. I do not have any other displays to test with...

@wwatson echoing @mjs513 - great work getting the driver ported to the different boards! FlexIO is a bit confusing at first, but the 8080 stuff is fairly simple to setup and debug compared to other protocols. The place it gets messy and really...

Note: that is simply a print to pdf of one of the pages in the excel document: https://github.com/KurtE/TeensyDocuments/blob/master/Teensy4x%20Pins.xlsx Note: @mjs513 did a modified version of this that I think is in @defragster github project...

My main question would be, what do you even need the Teensy/Arduino pin numbers for when writing code for modules like CSI and FlexIO? You can use IOMUXC_SW_MUX_CTL_PAD_GPIO_x and IOMUXC_SW_PAD_CTL_PAD_GPIO_x to initialize them (which works...

@KurtE can we get an original excel copy of this so that we can edit it? https://github.com/KurtE/TeensyDocuments/blob/master/Teensy4%20MicroMod%20Pins.pdf

A couple of questions and things I am playing with... With the 4.5 and SD adapter: guessing you used SDIO pins? (Same ones as defined for Micromod?) of if SPI which IO pins? CSI pins - I am in the process of integrating in some CSI support...

@KurtE and I have been at it again. This time creating a library that supports a number Arducam/Arduino camera modules: Model FrameSizes Pixel Formats Omnivision OV2640 FRAMESIZE_VGA //640x480 FRAMESIZE_QQVGA, // 160x120...

So I decided to make a facelift, adding SDCARD and USB-PD which supports the PD protocol up to 12V. There are pads to solder if you just want to use the second port as a pass through with 5V. Meaning, it will deliver the same 5V coming into the...

Wow you been busy!!! Nice job

One question did you bring out the csi pins?

I did not bring out any special ports. All that was done was SDCARD and USB-PD. But ofc we can keep going and make a gen5 that has more stuff. But it needs coordinating, Rezo and KurtE together could make a full pin mapping, that would be ideal...

It's hard to troubleshoot these things online, but can yo do a simple test with a logic analyzer? similar to what I did here? We need to verify that the data is being sent out in the correct order. The DMA is set up specifically to accept a 16...

@wwatson the code looks good from a brief overview. What length wires are you using between the MCU and the display boards? WIth 10cm wires I could not get past 20Mhz when testing With an LCD and Micromod mounted to the same pcb with 2cm traces...

@wwatson Are you trying 16 bit FlexIO on the dev board? If you have it working on a 4.1, then the config should be almost identical, but you need to make sure of the following changes: Set the relevant pins to output mode, and set the MUX to...

You have to order the boot loader from PJRC. It has custom code on it that allows the 1062 to work with Arduino/Teensyduino. A fresh boot loader should work on an unpaired 1062. @PaulStoffregen can confirm

Flash memory is not fused, so it can be replaced. But the RT1062 and the MKL02 are fused together the first time they both power up.

Everything is mentioned on the bootloader page - https://www.pjrc.com/store/ic_mkl02_t4.html If you got as far as creating your own Teensy 4.1, you should have come across this at some point

Here is the SDRAM board and ER-TFTM101-1 TFT working in 8080 8-bit mode. It's a start:) Waiting on some info to try out 16-bit 8080 mode...

My morning just begun :) Update us how it goes

Thanks @Rezo - Will set it up in the AM. Bedtime...

@wwatson Set the pin to FlexIO IOMUXC_SW_MUX_CTL_PAD_GPIO_B0_00 = 4; Set pin as output, high strength drive: IOMUXC_SW_PAD_CTL_PAD_GPIO_B0_00 = 0xFF; Do this for all 16 pins. You can still use FlexIO library, you just don’t need to call the...

@wwatson I set it through the IOMUXC just like jmarsh did. I have a 24bit 8080 FlexIO library I put together for an RM68120 display that died half way though development - I’ll dig it up and share the init code

If those pins are not responding but adjacent pins are, then there is a hardware issue with the board, bad BGA soldering from the production run. @Dogbone06 FYI

@jmarsh - Tested the elcdif sketches. Impressive:D Did not realize the mandelbrot sketch was animated. Now to hook up the 10.1" LCD and test... EDIT: By the way the T41 on the breadboard is the first T41 I got from PJRC. It has the white...

You might have bought a counterfeit teensy. Can you share the link to the product on Aliexpress?

Thanks for the info and link above. I now have it working with external sdram. It seems to work ok up to 270MHz with a 1280x720 frame buffer. Excuse my shakey picture:) I still am not using double buffering like in your original sketch but it...

First simple experiment on SDRAM board works. Adapted my 4-bit VGA library based on @jmarsh's driver to the dev board. Just had to change two pin defines for FlexIo2 for HSYNC and VSYNC which is used in several places in the FlexIO begin method...

Just received the sdram development board today:D I ran through all of the test programs that I know about without a problem. I need to make sure I have all of the pinout info for this board. It is a version 4 board. I thought I would start out...

simplest route would be to use LittleFS, then load the hex file from a BLE source for example, or via USB with MTP. You can then use flasherX to flash the hex to the program flash

I have had fun developing a Chronograph for measuring bullet speed with a Teensy 4.0 with 3.2in tft and RFM69 radio link to a Feather M0 with the 433mhz onboard radio. Also added a Nano printer to the wireless display for a hardcopy at the...

Thanks, I'll take a look at it. So far it has been my lack of knowledge of FlexIO and DMA that has slowed me down but I'm starting to understand it more...

@mborgerson thanks for taking the time and putting this together. I will have a play with it in the coming days!

I had issues just as you have above with the DMA write, but I can't recall what it was. Worth reading though my comments in this FlexIO thread - my memory is just not good enough to recall what the root cause was. But I have a feeling it's the...

Can you comment out gpioRead(); ? I think it's redundant.

what clock source are you using? And prescalers? When I was playing with FlexIO initially I found that the clock speed had to be half of the clock source speed. Eg if the clock source is 480Mhz, the maximum FlexIO clock speed can be 240Mhz. When...

Midbar (Teensy 4.1 Version) V3.1 is released. This version of Midbar can encrypt data that can be decrypted in the desktop app and vice versa. The new feature is available in the "Other Options" -> "Custom Key Encryption" -> "AES-256 CBC" tab...

Thank you, I appreciate the time spent on helping out! 1. The signal will be attuned, but the target is 5-15kW amplifiers, so peak to peak voltages of up to 400-500 volts. Plan is to use a voltage divider to get the levels down to around 3vpp...

Thanks @PaulS

Yes, your design will do. Set the sine module output to 1.0 and set the attenuation or amplification at the amp module. Paul

I need to build a test rig for another Teensy based project that can generate an audio sine wave from 0-20Khz, but I need to be able to make the signal clip as well. I have a a T4.x and a Rev D audio shield here at home - would this +a simple...

You can alter the alert/panic temps in the core files: https://github.com/PaulStoffregen/cores/blob/master/teensy4/tempmon.c#L10 Change this at your own risk. I have set my panic to over 100c for a product that sits in direct sunlight (and is...

To be honest im not sure either. Why would you need to know supply voltage if it won't work with anything much less than 3.3v? Also if it's battery powered there will be a DC-DC converter providing a stable 3.3v regardless of cell voltage...

We copied the Micromod pin pad labels, that's why it says BATT_IN - it's a Micromod label. It is wired to 3.3v on the ATP board and any other MM carrier board with a voltage divider. But it's just a GPIO, so can be used for anything else on the...

Finally got around to sitting down and mapping out all the exposed pins properly and found something odd - there's a pin labelled BATT_VIN/22/A8. My first thought: "how can this pin be both BATT_VIN and an I/O pin?" The answer is it can't/isn't...

@mborgerson anything you can suggest? The comparator rout seems like a very good trigger option so start/stop ADC samples. Perhaps use two buffers, so while one is being filled via DMA the other can be read and calculated. Just need some...

Awesome. Now to cover any leftover SPI calls with 8080 calls and then onto the MicroMod. I am really trying keep it all in one library...

For a full 1024*600 @ 2bpp frame on an 8 bit bus with a 40Mhz baud rate you should get up to 16fps. No super fast, but for such a high resolution and narrow bus, that's as good as it will get!

Good, just finished updating the 8-bit version and the draw time was 29ms for 449280 bytes which would be close to 60ms for 800k...

Thats looks much better!

That was the issue: Teensy and RA8876 parallel 8080 mode testing (8/16) Bus speed: 40 MHZ Rotate: After Origins Drawing two pictures at 794800 bytes in 16-bit mode Draw time: 26ms This is the code now: void...