2 layers73.9 × 69.9 mm
8051 Transmitter End
D-curs-D/8051_Serial_Comm
8051 based serial communication. The PCB Design was done on KiCAD, the simulations were done using proteus and code on keil studios.
26 parts1
2 layers91.4 × 61 mm
Atusbprog
mwbrown/atusbprogAtmel 8051 USB programmer using a SiLabs EFM8UB1 device.
- Size
- 91.4 × 61 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 68
- Pads
- 159
- Tracks, vias
- 220, 4
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 10 May 2019
- Updated
- 25 Apr 2020
Overview
Atusbprog is an open-source printed circuit board by mwbrown, from the mwbrown/atusbprog repository on GitHub, published under the MIT licence. It is a 2-layer board of 91.4 × 61 mm with 30 parts on 68 nets, routed with 220 tracks and 4 vias.
It is built around the AT89S52-24PU, SN74HCT125D and LTL2R3KGD-EM, with the LTL2R3KRD-EM, LTL2R3KYD-EM and SMH-110-02-L-D among its other parts. Its parts include 10 diodes, 5 capacitors, 5 connectors, 4 resistors and 2 ICs. It belongs with the 8051 (CH55x, STC, AT89) boards of this library.
Main components
6
AT89S52-24PU
DIP-40-40℃~+85℃ 24MHz 256Byte 32 4V~5.5V 51 Family 8 Bit 8KB Built-in FLASH DIP-40 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SN74HCT125D
SOIC-14-40℃~+85℃ 1 18ns@5.5V,50pF 4 4.5V~5.5V 6mA 6mA 74HCT 80uA Tri-State Unidirectional SOIC-14 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversLTL2R3KGD-EM
插件,D=5mmLED Indication - DiscreteLite-OnLTL2R3KRD-EM
插件,D=5mmLED Indication - DiscreteLite-On
LTL2R3KYD-EM
插件,D=5mm1.8V 2mA 30° 50mcd 588nm 592nm Yellow Yellow Lens 插件,D=5mm LED Indication - Discrete ROHSLite-OnLED Indication - DiscreteSMH-110-02-L-D
-Female HeadersSamtec
README
README.mdatusbprog
This project is intended as an exercise in learning about the following:
- Silicon Labs EFM8UB1 USB-enabled 8051 microcontroller
- Simplicity Studio for programming the EFM8UB1
- LibUSB on Linux (and possibly Windows?)
- USB in general i.e. for interacting with a microcontroller
- KiCAD design of a daughter card for the EFM8UB1 SLSTK2000A
Status
Currently, this project is in the very early stages where only experimentation between Linux and the SLSTK2000A have been done to toggle some LEDs, etc.
This will eventually be used as the foundation of a command/response type device that can be used to program Atmel microcontrollers. In order to accomplish this, a daughter card with one of these microcontrollers will be designed to be plugged into the side of an SLSTK2000A as an exercise in PCB design. This is not strictly required, per-se as the micros can be wired over to a breadboard, but the PCB design will prove to be a useful learning experience.
Planned Device Support
Current plans for device support are AT89S series C51-based microcontrollers, due to their simple SPI-based programming protocol. If flash space allows, a potential addition would be supporting AVR serial programming.
A preliminary list of devices is:
- AT89S52
- This will require some level-shifting due to the required 5V supply.
- AT89S8253
- This can interface directly with the EFM8UB1 due to both being 3.3V chips.
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | LTL2R3KGD-EM | LEDs:LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 3 | Conn_01x08 | Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm | J3, J4, J5 |
| 2 | 0.1u | Capacitors_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C1, C5 |
| 2 | 1.2k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4 |
| 2 | 30pF | Capacitors_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C3, C4 |
| 2 | SW_Push | Buttons_Switches_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 0 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 1.2k | Resistors_THT:R_Array_SIP9 | RN1 |
| 1 | 100k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 24 MHz | Crystals:Crystal_HC49-U_Vertical | Y1 |
| 1 | 47u | Capacitors_THT:CP_Radial_D8.0mm_P3.50mm | C2 |
| 1 | AT89S52-24PU | Housings_DIP:DIP-40_W15.24mm_LongPads | U2 |
| 1 | Conn_01x04 | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J2 |
| 1 | LTL2R3KRD-EM | LEDs:LED_D5.0mm | D9 |
| 1 | LTL2R3KYD-EM | LEDs:LED_D5.0mm | D10 |
| 1 | SMH-110-02-L-D | Socket_Strips:Socket_Strip_Straight_2x10_Pitch2.54mm_SMD | J1 |
| 1 | SN74HCT125 | Housings_DIP:DIP-14_W7.62mm | U1 |
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Questions
How big is the Atusbprog PCB?
It measures 91.4 × 61 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Atusbprog use?
30 parts, built around the AT89S52-24PU, SN74HCT125D, LTL2R3KGD-EM and LTL2R3KRD-EM. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Atusbprog KiCad files?
From the mwbrown/atusbprog repository on GitHub, at the commit this page was made from: the board is hw/kicad/atusbprog/atusbprog.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Atusbprog design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).