Programmer Sensor Stencil
About the Programmer Sensor Stencil PCB
Programmer Sensor Stencil is an open source FPGA PCB design by MichalVarsanyi, published on GitHub under the MIT license. It is a 2-layer board measuring 85 × 15.8 mm, with 118 components from 77 distinct parts.
Its main chip is the XC7A35T-CSG324, from the FPGA family. Other key parts include the TPD4E02B04, TDS5311P, LTC4368, XT30 and TPS82084. By type, the board carries 40 resistors, 31 capacitors, 17 ICs, 15 diodes, 6 connectors and 3 crystals.
It belongs with the sensors and usb & debug tools designs in this gallery.
From the project
VoxLink is a high-speed solution that allows interfacing of up to 100 sensors using a single high-speed host device. The communication protocol is agnostic to the sensor board, freeing the user from handling low-level communication. This project is part of my Bachelor's thesis at the Czech Technical University in Prague.
- During programming, exceeding internal clocking speeds of 100MHz on the iCE40UL1K-CM36AI FPGA proved to be virtually impossible. In the future, instantiating the hard IP I2C blocks in the FPGA silicon may increase the speed. Realistically, however, switching to a higher speed grade of FPGAs will probably be the best option.
It may seem that 50-100 MHz is unreasonably fast; however, just 40 sensors at 9 kHz get very close to this ballpark. It is difficult to determine what may increase the bandwidth in the future, so it's better to have an excess than to have too little bandwidth.…
Main components on the Programmer Sensor Stencil
Programmer Sensor Stencil bill of materials (BOM)
118 components, 77 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | TPD4E02B04 | USON-10_2.5x1.0mm_P0.5mm__Reduced_Paste | U1, U302, U504 |
| 1 | TDS5311P TPS25942ARVCR Semtech | QFN50P300X400X80-21N | U101 |
| 1 | LTC4368 TPS7A20L_3V3 ADI | Texas_X2SON-4_1x1mm_P0.65mm | U102 |
| 1 | XT30 USBLC6-2SC6 Amass | SOT-23-6 | U103 |
| 1 | TPS82084 FT2232HQ TI | QFN-64-1EP_9x9mm_P0.5mm_EP4.35x4.35mm | U201 |
| 1 | TPS82084 93LC56B TI | TDFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.4mm | U202 |
| 1 | LT8645S TPS7A20L_3V3 ADI | Texas_X2SON-4_1x1mm_P0.65mm | U203 |
| 1 | TPS82084 TLV840 TI | SOT-23-5 | U204 |
| 1 | XC7A35T-CSG324 ICE40UL1K-CM36AI Xilinx | UCBGA-36_2.5x2.5mm_Layout6x6_P0.4mm | U301 |
| 1 | N25Q032A | U-PDFN-8 | U305 |
| 1 | IS25LP256D BNO086 ISSI | LGA-28_5.2x3.8mm_P0.5mm | U401 |
| 1 | SN74AXC4T774 TPD4E02B04 TI | USON-10_2.5x1.0mm_P0.5mm__Reduced_Paste | U501 |
| 1 | FT232H TPD4E02B04 FTDI | USON-10_2.5x1.0mm_P0.5mm__Reduced_Paste | U502 |
| 1 | 93LC56B TPD4E02B04 Microchip | USON-10_2.5x1.0mm_P0.5mm__Reduced_Paste | U503 |
| 1 | CBTU02044 | HUQFN-16 | U505 |
| 1 | 16MHz | Crystal_SMD_2520-4Pin_2.5x2.0mm | Y201 |
| 1 | ASCO | Oscillator_SMD_Abracon_ASCO-4Pin_1.6x1.2mm | Y301 |
| 1 | 12MHZ 32.768 kHz ECS | Crystal_SMD_MicroCrystal_CC8V-T1A-2Pin_2.0x1.2mm | Y401 |
| 1 | IDC Connector | IDC-Header_2x03_P2.54mm_Horizontal | J101 |
| 2 | PicoBlade | Molex_PicoBlade_53048-0810_1x08_P1.25mm_Horizontal | J102, J302 |
Show 57 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USB_C_USB2.0 | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J103 |
| 1 | RJ45_Input | CONN_855035-101_MOL | J501 |
| 1 | RJ45_Output | CONN_855035-101_MOL | J502 |
| 1 | Reset | SW_Push_SPST_NO_Alps_SKRK | SW301 |
| 1 | Slide Switch | SSAJ110100_1 | SW501 |
| 2 | TestPoint | Vox_Testpoint | TP501, TP502 |
| 8 | TVS | D_0402_1005Metric | D101, D102, D104, D301, D303, D304, D501, D502 |
| 2 | Schottky | D_0402_1005Metric | D103, D302 |
| 3 | LED | LED_0603_1608Metric | D105, D305, D308 |
| 1 | RX | LED_0603_1608Metric | D306 |
| 1 | TX | LED_0603_1608Metric | D307 |
| 2 | 600R | L_0402_1005Metric | FB201, FB202 |
| 1 | 4u7 | C_0402_1005Metric | C12 |
| 1 | 4.7U 2u2 Murata | C_0603_1608Metric | C101 |
| 1 | 100N 100n Murata | C_0603_1608Metric | C102 |
| 1 | 10N 1n Murata | C_0402_1005Metric | C103 |
| 1 | 22U 1u Murata | C_0402_1005Metric | C201 |
| 4 | 22U 100n Murata | C_0402_1005Metric | C202, C213, C214, C217 |
| 3 | 100U 1u Murata | C_0402_1005Metric | C203, C204, C205 |
| 1 | 100U 10p Murata | C_0402_1005Metric | C206 |
| 5 | 100U 100n Murata | C_0402_1005Metric | C207, C210, C211, C215, C216 |
| 1 | 100U 33n Murata | C_0402_1005Metric | C208 |
| 1 | 100U 4u7 Murata | C_0603_1608Metric | C209 |
| 5 | 100N 100n Murata | C_0402_1005Metric | C301, C302, C402, C403, C502 |
| 3 | 10U 100n Murata | C_0402_1005Metric | C303, C304, C501 |
| 1 | 100n Murata | C_0402_1005Metric | C401 |
| 2 | 15pF | C_0402_1005Metric | C404, C405 |
| 1 | C201283 1R Walter | R_0603_1608Metric | R101 |
| 1 | C445774 22R Panasonic | R_0402_1005Metric | R102 |
| 1 | 22K 25k5 Vishay | R_0402_1005Metric | R103 |
| 1 | 1.1MEG 100k Vishay | R_0402_1005Metric | R104 |
| 1 | 1.1MEG 5k1 Vishay | R_0402_1005Metric | R105 |
| 1 | 280K 150k Vishay | R_0402_1005Metric | R106 |
| 1 | 23.2K 1k Vishay | R_0402_1005Metric | R107 |
| 2 | 499K 10k Vishay | R_0402_1005Metric | R201, R204 |
| 1 | 12.4K 2k2 Vishay | R_0402_1005Metric | R202 |
| 1 | 49.9K 10k Vishay | R_0402_1005Metric | R203 |
| 1 | 61.9K 10k Vishay | R_0402_1005Metric | R205 |
| 1 | 1MEG 12k Vishay | R_0402_1005Metric | R206 |
| 1 | 49.9K 1k Vishay | R_0402_1005Metric | R207 |
| 1 | 243K 0R Vishay | R_0402_1005Metric | R208 |
| 1 | 41.2K R Vishay | R_0402_1005Metric | R209 |
| 1 | 499K R Vishay | R_0402_1005Metric | R210 |
| 1 | 154K R Vishay | R_0402_1005Metric | R211 |
| 1 | 49.9K R Vishay | R_0402_1005Metric | R212 |
| 1 | 280R R Vishay | R_0402_1005Metric | R213 |
| 1 | 4x22R | EXBN8V101JX | R301 |
| 1 | 22R | R_0402_1005Metric | R302 |
| 4 | 510R | R_0402_1005Metric | R303, R306, R307, R308 |
| 2 | 10k | R_0402_1005Metric | R304, R305 |
| 1 | 200R 4k7 Vishay | R_0402_1005Metric | R401 |
| 1 | 100R 4k7 Vishay | R_0402_1005Metric | R402 |
| 3 | 4.7K 10k Vishay | R_0402_1005Metric | R403, R404, R405 |
| 2 | 4.7K 4k7 Vishay | R_0402_1005Metric | R406, R407 |
| 1 | 4.7K 22R Vishay | R_0402_1005Metric | R408 |
| 1 | 0R Vishay | R_0402_1005Metric | R501 |
| 3 | 12K 0R Vishay | R_0402_1005Metric | R502, R503, R504 |
Programmer Sensor Stencil design files
The KiCad project lives in the MichalVarsanyi/VoxLink repository on GitHub; these links point at the commit this page was built from.
Programmer Sensor Stencil: common questions
What microcontroller does the Programmer Sensor Stencil use?
The Programmer Sensor Stencil is built around the XC7A35T-CSG324, from the FPGA family.
How big is the Programmer Sensor Stencil PCB?
The Programmer Sensor Stencil measures 85 × 15.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Programmer Sensor Stencil?
118 components, from 77 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Programmer Sensor Stencil design files?
From the MichalVarsanyi/VoxLink repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Programmer Sensor Stencil design in my own project?
Yes, under the terms of its MIT license, which MichalVarsanyi chose for the repository.
Can I test firmware for the Programmer Sensor Stencil without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.
More boards in VoxLink
FPGAController Board
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FPGAVoxSense Sensor Board
85 × 15.8 mm92 parts4LMIT1
VoxLink Programmer Board
49.1 × 15.5 mm55 parts4LMIT1
FPGAVoxLink - Lattice Core Module
13 × 13 mm52 parts6LMIT1
VoxLink - BNO086 Sensor Module
13 × 13 mm32 parts4LMIT1
FPGACore Module Intel
13 × 13 mm27 parts6LMIT1
VoxLink - Shell Module - Daisy
54 × 29.5 mm9 parts4LMIT1
VoxLink Programmer Shell
70 × 70 mm7 parts4LMIT1
VoxLink - Shell Module Bus
54 × 29.5 mm4 parts4LMIT1
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