Title: dsPIC33fj256MC710 dev breakout
Post by: haley0918 on November 10, 2011, 01:58:56 am
Post by: haley0918 on November 10, 2011, 01:58:56 am
As the reply to "TQFP 100 break out for Microchip devices" on the blog here's the breakout board that I mentioned.
I have to admit that the placement of ICSP and JTAG are very tight in this design. The board fits exactly the 5cm*5cm board order at SeeedStudio. Another part that I'm not really satisfied is the placement of the crystal. It is placed close to other pins, although on the bottom side, which is susceptible to noise. Unless I go for 4 layer board design this is the best that I can do.
I have to admit that the placement of ICSP and JTAG are very tight in this design. The board fits exactly the 5cm*5cm board order at SeeedStudio. Another part that I'm not really satisfied is the placement of the crystal. It is placed close to other pins, although on the bottom side, which is susceptible to noise. Unless I go for 4 layer board design this is the best that I can do.
Title: Re: dsPIC33fj256MC710 dev breakout
Post by: Sjaak on November 10, 2011, 08:13:44 am
Post by: Sjaak on November 10, 2011, 08:13:44 am
Looks very clean! nice job
Title: Re: dsPIC33fj256MC710 dev breakout
Post by: arakis on November 11, 2011, 09:09:32 am
Post by: arakis on November 11, 2011, 09:09:32 am
TIp, you didn't have to break out all the pins that are connected to GND and VDD, VCAP, since you wont be using them
Title: Re: dsPIC33fj256MC710 dev breakout
Post by: haley0918 on November 11, 2011, 02:37:06 pm
Post by: haley0918 on November 11, 2011, 02:37:06 pm
[quote author="arakis"]TIp, you didn't have to break out all the pins that are connected to GND and VDD, VCAP, since you wont be using them[/quote]
That's a nice tip! I didn't thought of that when drawing.
My initial thought was to make a breakout for this dsPIC that is comparable to the microcontroller plug in modules on Microchip Explorer 16 Demo Board. Microchip's plug in module uses 1.27mm pitch sockets, which is not as user friendly as the usual 2.54mm pitch, but has one to one mapping of pins onto the microcontroller.
That's a nice tip! I didn't thought of that when drawing.
My initial thought was to make a breakout for this dsPIC that is comparable to the microcontroller plug in modules on Microchip Explorer 16 Demo Board. Microchip's plug in module uses 1.27mm pitch sockets, which is not as user friendly as the usual 2.54mm pitch, but has one to one mapping of pins onto the microcontroller.