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author | uwe <uwe@2b7e53f0-3cfb-0310-b3e9-8179ed1497e1> | 2011-10-20 23:14:10 +0000 |
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committer | uwe <uwe@2b7e53f0-3cfb-0310-b3e9-8179ed1497e1> | 2011-10-20 23:14:10 +0000 |
commit | 9eb9c96de56b3caf11b5ad97fbfb63bf316fbbd7 (patch) | |
tree | 8b58adf2bf2f4fb2c54fb563a56558671ba722ba /rayer_spi.c | |
parent | 551f8c84a0a9d73748624d739597658d2695e335 (diff) | |
download | flashrom-9eb9c96de56b3caf11b5ad97fbfb63bf316fbbd7.tar.gz |
Add support for the GOEPEL PicoTAP programmer.
http://www.goepel.com/en/jtagboundary-scan/hardware/picotap.html
This device is actually a JTAG adapter, but since it uses standard
FT2232 A interface pins, it can be easily used as SPI programmer
(tested it here successfully). PicoTAP supports only 5V output, so one
needs to reduce this to 3.3V in a same manner as DLP Design DLP-USB1232H, see
http://flashrom.org/FT2232SPI_Programmer#DLP_Design_DLP-USB1232H
for details.
The PicoTAP pin-out is as follows:
PicoTAP | SPI
---------+-------
TCK | SCLK
TMS | CS#
TDI | SO
TDO | SI
/TRST | -
GND | GND
+5V | VCC, HOLD# & WP# after 3.3V regulator
I managed to run PicoTAP in 10MHz, 15MHz and 30MHz modes (by forcing
DIVIDE_BY), against SST25VF016B SPI flash, read/write/erase all worked
fine (write seems somewhat slow).
Signed-off-by: Samir Ibradžić <sibradzic@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: https://code.coreboot.org/svn/flashrom/trunk@1453 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'rayer_spi.c')
0 files changed, 0 insertions, 0 deletions