Matrix user forums

Hi, I dont think there is a component in flowcode for the RA8835. I did a while ago have a play with this chip, very powerful but absolutely riddled with bugs. You can use the SPI component in flowcode to send data to and from the controller, the commands are pretty straight forward and there are ex...

Hi,
Has anyone managed to use a microcontroller as a mass storage device in flowcode?

I would like to have a microcontroller communicate with a PC or phone using no drivers or software. The microcontroller will behave as a mass storage device where a file created can be downloaded.

Thanks

Hi, I would like to explore the possibility of an idea. I would like to have a microcontroller (not yet determined) output a PDF file to a PC. The device would collect variety of data, when required the user would plug the device into a computer. The device would then give access to PDF daily logs. ...

My mistake.

I just checked myself and found its the PIC16F1614 that has the UART hardware.

Hi.

I am using a PIC16F1613. Attempting to use UART. However there is no hardware option available in the properties.
Can you fix this please.
Also can you check when doing so that the RXINT will be working.

Thanks

EDIT: Also, what would the possibility of getting IOC interrupts working on PORT C?

Hi,
This has solved my problem. Please mark as solved.

Hi. I am new to ethernet based projects. We are working on a project where sensors talk to a central hub and send the details to a website api. The web guys have advised that when selecting an ethernet controller i make sure it can support HTTPS due to the security that they will be implementing. Ho...

Thanks Ben, I shall try that this evening.

Hi. So since flowcode doesn't yet support the PIC16F18875 in I2C slave mode i thought i would see about using the UART. Fortunately it has remappable pins and i was able to reuse the pins i had set for the I2C. PORTC4 = TX PORTC3 = RX I have good communication both ways. However putting the receive ...

Oh, thats a shame.
It was one of the main reasons we decided to trial FC7.

A little disappointing that after 7 versions of flowcode slave devices still arent there.

So to clarify, the I2C slave will be usable even in software mode??
I take it that i cannot then use hardware interrupt for I2C to flag incoming traffic?

Hi.
I am attempting to use the I2C slave on PIC16F18875.
In the properties i seem to be unable to select a channel. I only have option for "software" I would have preffered to use the hardware channel on PORTC.4 and PORTC.3 which appear to be remappable pins.

Is it possible to do this?

Hi, The chip is possibly going to be PIC18LF25K22. As for sleep modes, no idea as of yet, i didnt realise there were more than one setting. It will be the setting that requires least power. I dont think EEPROM will be suitable as we will be constantly reading and writing to it so it will wear over t...

Hi, I am working on a project and need to get a clear answer on a potential problem. We are using a PIC to communicate with a sensor. This sensor has some data that needs to be read initially in order to use it in formulating the output. This data will be pulled upon startup and stored in an array. ...

Ben, Maybe you can help with something.

The PWM on the DSPIC33, it seems to be split into 2 pins, a High and a Low.
How does this work? Can i essentially use the PWM as a 16bit DAC?

If it were 1 16bit PWM pin then i could understand it, but since its split i dont get how it could be used?

So i have chosen a DAC for this project. 16bit DAC are silly money and a bit over complicated for my needs. So i have gone for a 12bit DAC. I am told that the loss of quality will be minimal and hardly even noticeable.

The MU series are physically too big for the application, space is limited. I have just checked the datasheet for the,

DSPIC33EP32MC202 and it says it can do 60MIPS, In the description it said 60MHz which is why i dismissed it. Its on the flowcode list so i think i should be good to go.

I have actually just realised that this PIC is not supported in Flowcode. The MC version is but its not as fast.
Is this chip a no go Ben?

I did look at the GP and MC versions, but they run at half the speed. Only 60MHz instead of 140MHz.

There shouldnt be a problem using the GS version should there??

Slightly off topic but i just need to clarify something...

On the DSPIC33EP32GS202 that i have selected to use, The chip doesnt have any specific SPI port. Instead there are "RPxx" pins.
Is there any restriction as to which pin can be mapped for a specific task??

Hi Ben, Thanks for the quick reply. Timer is a good shout, i think i can work that one out. PIC Speed, is it simply a case of faster the better? I assume that if streaming at 44.1KHz but clock speed of 140MHz then there is loads of time between interrupts to be gathering data from the memory. If thi...

Hello, I am currently in the process of designing an audio player. The plans is as follows, PIC Microcontroller (receives commands via I2C on which file to play, Outputs file data via SPI) SPI DAC, Takes SPI data and turns it analogue (better than PWM??) Audio amplifier (D CLASS, takes analogue data...

Hi

For the purpose of only reading/writing to USB flash drive this is too expensive for our end product.
I would rather spend this on more functional components such as WiFi or a more capable microcontroller.

I think i might have a bash at writing the USB firmware and see how far in i can get.

Hi Steve. I have breifly looked at the vdrive. Our project is price sensitive so such devices in this instance are not suitable. I am currently torn between SD card or USB. SD card makes for easier coding but has its downsides in terms of customer useability and also how it would fit in our design. ...

Hi Ben. Would an AVR bootloader be very much different to PIC24? If it would follow a similar type of code, would it be at all possible to get a look at your AVR bootloader please. Assuming of course it was written in flowcode? An SD card would be easier i admit, from an end user point of view im no...