| commit | b29de3e807277c0898f2601ba05581b2fbb6b0b4 | [log] [tgz] |
|---|---|---|
| author | Bryce-Readyhough <brycereadyhough@gmail.com> | Wed Dec 09 08:09:02 2020 -0800 |
| committer | Bryce-Readyhough <brycereadyhough@gmail.com> | Wed Dec 09 08:09:02 2020 -0800 |
| tree | e088c91b6248f8066abc8ca2d4cdd01c9c419500 | |
| parent | 578714ebd789e3149a2a9dff1fa21467ae9bb74d [diff] |
Added 10 bit DAC depencencies to mag directory
This is the Google/EFabless/Skywater Caravel submission of an Analog Spiking Neuron Circuit. The submission also includes a SONOS transistor array.
The circuit in the original paper is in 130nm technology and has a vdd of 300mV. Skywater pdk is hybrid 180nm/130nm node where the minimum transistor length is 150nm. As a result vdd needs to be higher in order to get the circuit to work properly. In simulation 700mV seems to work well.
| node | pad | node | pad |
|---|---|---|---|
| i_bias | mprj_io[13] | v_buff | mprj_io[22] |
| vad | mprj_io[14] | u_buff | mprj_io[23] |
| vr | mprj_io[15] | a_buff | mprj_io[24] |
| vk | mprj_io[16] | axon_buff | mprj_io[25] |
| vth | mprj_io[17] | sel | mprj_io[26] |
| vw | mprj_io[18] | v_syn | mprj_io[27] |
| vau | mprj_io[19] | u_syn | mprj_io[28] |
| vsyn0 | mprj_io[20] | a_syn | mprj_io[29] |
| vsyn1 | mprj_io[21] | axon_syn | mprj_io[30] |
| i_in | mprj_io[31] |
A 2x2 array of nfet sonos cells with transistor sizing 420nmx150nm.
| node | pad |
|---|---|
| WL0 | mprj_io[7] |
| WL1 | mprj_io[8] |
| BL0 | mprj_io[9] |
| SL0 | mprj_io[10] |
| BL1 | mprj_io[11] |
| SL1 | mprj_io[12] |
To setup and install the repo for development:
export PDK_ROOT=(Absolute path where PDKs will be installed) cd $PDK_ROOT git clone https://github.com/google/skywater-pdk cd skywater-pdk git submodule init libraries/sky130_fd_io/latest git submodule init libraries/sky130_fd_pr/latest git submodule init libraries/sky130_fd_sc_hd/latest git submodule init libraries/sky130_fd_sc_hdll/latest git submodule init libraries/sky130_fd_sc_hs/latest git submodule init libraries/sky130_fd_sc_ms/latest git submodule init libraries/sky130_fd_sc_ls/latest git submodule init libraries/sky130_fd_sc_lp/latest git submodule init libraries/sky130_fd_sc_hvl/latest git submodule update make timing
git clone https://github.com/RTimothyEdwards/open_pdks.git cd open_pdks ./configure --with-sky130-source=$PDK_ROOT/skywater-pdk/libraries --with-sky130-local-path=$PDK_ROOT cd sky130 make make install-local
TODO: Finish Install instructions