Hello, I have the SamD21G18A processor the sam as the Arduino zero board. I tried to look and can not find a larger pin version of this processor. I thought at one time there was a 64 pin even a 100 pin version of this processor. Does anyone know if there is a larger pin version of this processor or a unoffical support processor like this one with a larger pin count?
Edit: I did manage to find the ATSAMD21J16B. I was wondering if that processor can be used on the arduino platform?
Joseph
Hello, I had contact with microchip and they told me that the ATSAMD21J20A-au is close to ATSAMD21G18A processor. Now I'm wondering if it is possible to program it?
Depending on what you want to do with sooo many IO-pins different solutions might be possible.
You should post a description of your complete project.
Especially if all you do with all these IO-pins is switching them on/ off once every few seconds and it doesn't matter if a particular IO-pin is switched 0,01 seconds earlier or later
any kind of IO-expander I2C, SPI, bitshiftregisters will work to get multiple hundreds of IO-pins
If you want to drive RGB-LEDs there are LEDs available where a single pin is sufficient to drive hundreds of these LEDs
So what is your overall project?
a 1.5" LCD screen, wiznet 5500 ethernet. Two eeprom, two other memory, This is all for storage working on a PLC controller. I have pc fans 4 of them, A lot of off and on switching for different devices, 4 thermistors, 2 i2c temperatures, Light switches, Basically a whole home automated system. But need more digital pins as well as analong pins.
This is for a friend of mine and I did ask him and ask why not a raspberry pi or something. He said he loves arduino and stuck with it. But He is expanding his project.
Edit: I'm treating this as if it was my own project.
There is no such part!
I have found that the Microchip application engineers are not well trained in their product lines.
The ATSAMD21J18A is almost identical to the ATSAMD21G18A but has 64 pins.
You only gain 14 more I/Os
Since it is an Cortex-M0+ MCU it should be programable with the Arduino IDE but you will need to make a new board support package so that you can use the extra pins.
D51 is not the same as D21. different processor
I'm sorry I retract that. Somehow When I search for that one I keep getting redirect back to the D51 processor. That is my fault there. Strange
Well as I previously mentioned there is no ATSAMD21J20A.
Strange this is what I got in the email. And you are right there is nothing on anysite. But microchip doesn't put everything on there site either. Wonder If this is one of them chips that is no information online.
edit: The only thing I can think of If can not go to another processor then using a GPIO expander maybe.
As I previously mentioned the Microchip application engineers never seem to be very familiar with their own product lines and often provide useless information.
I think it was a typo, I don't think it is a hidden device. Confusingly there are SAM D, and SAM D51 which are different families, SAM D51 are closer to SAM E51. https://www.microchip.com/en-us/products/microcontrollers-and-microprocessors/32-bit-mcus/sam-32-bit-mcus/sam-d
SAMD is Cortex-M0, up to 64 pins.
There are several Arduino platforms with more pins, Mega/Due etc. Of course, you always tend to run out of pins, because of the way MCUs are scaled.
You could be right about the type-o there. There is the SamD51 processor that has a 64 pin ATSAMD51N19A-AUT. I also found
https://github.com/arduino/ArduinoModule-CMSIS-Atmel/
For the supporting on arduino IDE. However it hasn't been updated for a few long years.
I did notice that a couple of times in the past.
So your best solution would be the ATSAMD21J18A
I did find a core for that one and it looks like it is supported.
https://github.com/mattairtech/ArduinoCore-samd#features-summary-for-d21l21c21d11
Hopefully that’s mostly “microchip applications engineers are not well trained on the “newly” acquired Atmel chips…
The samd51 series is another possibility. Same general structure as a d21, but with an M4f processor at 120MHz. Adafruit has done a core and several boards.
Hey West how are you? I'm trying to find a replacement processor for my friend but came across a few road blocks. Trying to get a processor that the IDE can support and have up to 64 pins. Compared to the 48 pins he currently has.
And that is the problem trying to find one to replace it.
MattairTech SAM D|L|C Core for Arduino
I clicked on the link, does not exist.
I would stay away from that core.
I will have to pick this back in later on. I need to sleep now. i have to be at the doctors in 4 hours.