| ??? 10/27/04 22:24 Read: times |
#79915 - RE: S-52 Learning board for beginers. Responding to: ???'s previous message |
Prahlad Said:
In S-52 board i am using minimum trace width 13 mils. I have made several boards using screen printing method having 13mils width and they worked well however I will try to increase the trace width. Well, I agree. With experience, it is possible to handle 13mil traces using screen printing. But think of newbies or inexperienced persons. A little over-etching can ruin the whole effort. Also your board has ample space for thicker traces to be accomodated. So I think these should be at least 40mil. It would be nice if you can add a socket for an I2C memory since the users of this board will soon be needing to experiment the some advanced stuff. Also any GPIO port (no matter how many port pins it provides) seems useless without GND and VCC connections. External peripherals connected to these GPIO ports need these power connections in almost all the cases. Some test points on the board might be useful as well like EA, RX, TX, +5V. Very easy to ground the crystal case. I wonder why you didn't (must have overlooked :-) And finally, you should provide the Silk and Mask layouts as well in case one needs them. |
| Topic | Author | Date |
| S-52 Learning board for beginers. | 01/01/70 00:00 | |
| Do you sell them pre-made??? | 01/01/70 00:00 | |
| RE: Do you sell them pre-made??? | 01/01/70 00:00 | |
| RE: S-52 Learning board for beginers. | 01/01/70 00:00 | |
| RE: S-52 Learning board for beginers. | 01/01/70 00:00 | |
| RE: S-52 Learning board for beginers. | 01/01/70 00:00 | |
| RE: S-52 Learning board for beginers. | 01/01/70 00:00 | |
RE: S-52 Learning board for beginers. | 01/01/70 00:00 | |
| There is no Vcc decoupling for micro!! | 01/01/70 00:00 | |
| RE: There is no Vcc decoupling for micro!! | 01/01/70 00:00 | |
| RE: There is no Vcc decoupling for micro!! | 01/01/70 00:00 | |
| RE: There is no Vcc decoupling for micro!! | 01/01/70 00:00 |