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by captbill
Fri Feb 16, 2018 6:16 am
Forum: Discussion
Topic: PIC Peripheral Interface Controller connected to Ultibo
Replies: 9
Views: 1090

Re: PIC Peripheral Interface Controller connected to Ultibo

The PICkit3 from Microchip can be had for under $50. There are even some knockoffs available for under $20, but probably best avoided. The PICkit3 also has the in-circuit-debugger feature which is nice. http://www.microchip.com/Developmenttools/ProductDetails.aspx?PartNO=PG164130 So it is in circui...
by captbill
Fri Feb 16, 2018 4:32 am
Forum: Discussion
Topic: PIC and sd card
Replies: 3
Views: 481

Re: PIC and sd card

How does that relate to this? Thanks, Mark This is exactly what I was thinking. All of the back-and-forth could be eliminated by having a PIC based controller sitting in between the Ultibo IDE (which will send commands) and the Rpi. The PIC will have control of the power switch and the necessary pi...
by captbill
Fri Feb 16, 2018 4:15 am
Forum: Discussion
Topic: PIC Peripheral Interface Controller connected to Ultibo
Replies: 9
Views: 1090

Re: PIC Peripheral Interface Controller connected to Ultibo

The PICkit3 from Microchip can be had for under $50. There are even some knockoffs available for under $20, but probably best avoided.

The PICkit3 also has the in-circuit-debugger feature which is nice.

http://www.microchip.com/Developmenttools/ProductDetails.aspx?PartNO=PG164130
by captbill
Fri Feb 16, 2018 4:00 am
Forum: Discussion
Topic: PIC and sd card
Replies: 3
Views: 481

Re: PIC and sd card

Hi Mark,
I was thinking of using the PIC as a way to efficiently hand off the SDCard from the Rpi to the Pc, upload files, then hand back control of the SDCard to the Rpi to prevent all the swapping back and forth.
by captbill
Thu Feb 15, 2018 6:36 pm
Forum: Projects
Topic: Jan 2018 Semester Group Project
Replies: 86
Views: 8395

Re: Jan 2018 Semester Group Project

What are some of the ultibo spi projects that are notable? Mark What about the issue with the SDCard? If we use the PIC as the SDCard 'controller', that we manage the uploading with, it would simply be a matter of switching a couple of pins to redirect the data flow to either the Pi or the PIC cont...
by captbill
Thu Feb 15, 2018 4:51 pm
Forum: Projects
Topic: Jan 2018 Semester Group Project
Replies: 86
Views: 8395

Re: Jan 2018 Semester Group Project

Is PIC16F84 programmable (low voltage) using pi gpio? It would be quite convenient if it is. What are some of the ultibo spi projects that are notable? Mark I appears as if, at first glance, using GPIO directly for programming the PIC's is not that simple. I see many DIY boards but none directly to...
by captbill
Thu Feb 15, 2018 5:09 am
Forum: Projects
Topic: Jan 2018 Semester Group Project
Replies: 86
Views: 8395

Re: Jan 2018 Semester Group Project

Bill - do these part suggestions change your plans? http://www.microchip.com/wwwproducts/en/PIC16F84 PIC16F84 Not Recommended for new designs Please consider this device PIC16F84A http://www.nordicsemi.com/eng/Products/2.4GHz-RF/nRF24L01 This product is not recommended for new designs. Nordic recom...
by captbill
Wed Feb 14, 2018 9:12 pm
Forum: Projects
Topic: Jan 2018 Semester Group Project
Replies: 86
Views: 8395

Re: Jan 2018 Semester Group Project

I would like to propose as my project a hardware based implementation of a "RAD hardware reference design". The idea is to break the barrier between the Pc world and the MCU world and bring a more RAD like experience by providing a mediator layer to manage the intercommunication between pc...
by captbill
Wed Feb 14, 2018 7:59 pm
Forum: News
Topic: Success really isn’t optional
Replies: 34
Views: 6472

Re: Success really isn’t optional

What if you were able to simply place all the graphics code on an Rpi which serves as 'graphical hardware appliance' that has a component-like interface that is driven via SPI? There are a few items we need to get done first before this would be totally possible but one step at a time I can see thi...
by captbill
Mon Feb 12, 2018 5:55 am
Forum: General
Topic: saleae logic analyzer automation
Replies: 2
Views: 956

Re: saleae logic analyzer automation

Sorry I missed this post. I can't determine, with a quick search for 'is Saelae SUMP compatible' or if has a proprietary control interface. The SUMP protocol is a standardized 'logic analyser protocol' that many la's use. If the saelae unit you have doesn't speak SUMP I would sell it and get a Pipis...

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