Programmingjig
About the Programmingjig PCB
Programmingjig is an open source RISC-V PCB design by cnlohr, published on GitHub under the MIT license. It is a 2-layer board measuring 17.9 × 28.4 mm, with 16 components from 12 distinct parts.
Its main chip is the CH32V003JxMx, from the RISC-V family. Other key parts include the RS3236-3.3YUTDN4. By type, the board carries 6 connectors, 4 capacitors, 4 resistors and 2 ICs.
From the project
Bad Apple in 65kB or bust.
This has been moved to https://github.com/cnlohr/badderapple/tree/master/playback/ch32v006_hardware
Main components on the Programmingjig
Programmingjig bill of materials (BOM)
16 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RS3236-3.3YUTDN4 | xdfn-reg | U2 |
| 1 | CH32V003JxMx | SOP-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | SPGM | PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
| 1 | PGMVDD | TestPoint_Loop_D2.60mm_Drill1.6mm_Beaded | J3 |
| 1 | PGMO | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | PGMVDD-POGO-5.5mm | TestPoint_Loop_D2.60mm_Drill1.6mm_Beaded | J5 |
| 1 | PGMIO | TestPoint_Loop_D2.60mm_Drill1.6mm_Beaded | J11 |
| 2 | 1u25v | C_0402_1005Metric | C1, C4 |
| 2 | 10u | C_0603_1608Metric | C2, C3 |
| 3 | 5.1k | R_0402_1005Metric | R1, R2, R3 |
| 1 | 1.5k | R_0402_1005Metric | R4 |
Programmingjig design files
The KiCad project lives in the cnlohr/badderapple repository on GitHub; these links point at the commit this page was built from.
Programmingjig: common questions
What microcontroller does the Programmingjig use?
The Programmingjig is built around the CH32V003JxMx, from the RISC-V family.
How big is the Programmingjig PCB?
The Programmingjig measures 17.9 × 28.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Programmingjig?
16 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Programmingjig design files?
From the cnlohr/badderapple repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Programmingjig design in my own project?
Yes, under the terms of its MIT license, which cnlohr chose for the repository.
Can I test firmware for the Programmingjig without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RISC-V firmware against it before you order a PCB.
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