Difference between revisions of "Load custom bitstream"

From ElphelWiki
Jump to: navigation, search
(Created page with "==from u-boot== ==from OS== Category:393")
 
(5 intermediate revisions by the same user not shown)
Line 1: Line 1:
==from u-boot==
+
==Description==
==from OS==
+
The default bitstream is loaded from OS not from u-boot.
 +
Reasons:
 +
* Different banks have different (software - controlled and regulated) voltages and they need to be set up before loading.
 +
** voltages are set by the software through i2c
 +
 
 +
==Bitstreams paths==
 +
* ''/usr/local/verilog/''
 +
{| class='wikitable'
 +
! name
 +
! description
 +
|-
 +
|x393_parallel.bit
 +
|for 5MPix sensor with parallel interface + SATA
 +
|-
 +
|x393_hispi.bit
 +
|for 14MPix sensor with serial interface + SATA
 +
|-
 +
|x393_sata.bit
 +
|SATA only
 +
|-
 +
|x359.bit
 +
|for external MUX 3-to-1 board
 +
|}
 +
 
 +
==Init==
 +
* /etc/init.d/init_elphel393
 +
...
 +
$CONFDIR/init_elphel393.py "{\"usb_hub\":1, \"ip\":1,\"imgsrv\":1, \"autoexp_daemon\":1, \"autocampars\":1, \"sata\":1, \"gps\":1, \"eyesis\":0 }"
 +
...
 +
** in this line the extra init procedures are listed, to disable/skip certain procedure set 0, to enable - set 1
 +
** everything is done in ''/etc/elphel393/init_elphel393.py'' which runs other scripts.
 +
** the bitstream is loaded by '''autocampars''' or '''sata''' (if autocampars is skipped)
 +
 
 +
 
 +
 
 
[[Category:393]]
 
[[Category:393]]

Revision as of 21:07, 20 April 2017

Description

The default bitstream is loaded from OS not from u-boot. Reasons:

  • Different banks have different (software - controlled and regulated) voltages and they need to be set up before loading.
    • voltages are set by the software through i2c

Bitstreams paths

  • /usr/local/verilog/
name description
x393_parallel.bit for 5MPix sensor with parallel interface + SATA
x393_hispi.bit for 14MPix sensor with serial interface + SATA
x393_sata.bit SATA only
x359.bit for external MUX 3-to-1 board

Init

  • /etc/init.d/init_elphel393
...
$CONFDIR/init_elphel393.py "{\"usb_hub\":1, \"ip\":1,\"imgsrv\":1, \"autoexp_daemon\":1, \"autocampars\":1, \"sata\":1, \"gps\":1, \"eyesis\":0 }"
...
    • in this line the extra init procedures are listed, to disable/skip certain procedure set 0, to enable - set 1
    • everything is done in /etc/elphel393/init_elphel393.py which runs other scripts.
    • the bitstream is loaded by autocampars or sata (if autocampars is skipped)