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Hi,<br>
<br>
I'm testing an Amontec JtagKey-tiny interface for programming a
SST25VF040B eeprom i'm using in a project.<br>
The Jtagkey-tiny is detected without problems, it reads the eeprom
ID and is detected.<br>
<br>
But when i try to read it contents, i get an error:<br>
<br>
<blockquote>$ ./flashrom -p ft2232_spi:type=jtagkey,port=A -Vr
test.bin<br>
flashrom v0.9.3-r1205 on Linux 2.6.32-26-generic (i686), built
with libpci 3.0.0, GCC 4.4.3, little endian<br>
flashrom is free software, get the source code at
<a class="moz-txt-link-freetext" href="http://www.flashrom.org">http://www.flashrom.org</a><br>
<br>
Calibrating delay loop... OS timer resolution is 2 usecs, 1000M
loops per second, 10 myus = 11 us, 100 myus = 91 us, 1000 myus =
904 us, 10000 myus = 9823 us, 8 myus = 10 us, OK.<br>
Initializing ft2232_spi programmer<br>
Using device type Amontec JTAGkey interface A<br>
Set clock divisor<br>
SPI clock is 2.000000MHz<br>
No loopback of TDI/DO TDO/DI<br>
Set data bits<br>
[Probings ommited]<br>
Probing for SST SST25VF040B, 512 KB: probe_spi_rdid_generic: id1
0xbf, id2 0x258d<br>
Chip status register is bf<br>
Chip status register: Block Protect Write Disable (BPL) is set<br>
Chip status register: Auto Address Increment Programming (AAI) is
not set<br>
Chip status register: Bit 5 / Block Protect 3 (BP3) is set<br>
Chip status register: Bit 4 / Block Protect 2 (BP2) is set<br>
Chip status register: Bit 3 / Block Protect 1 (BP1) is set<br>
Chip status register: Bit 2 / Block Protect 0 (BP0) is set<br>
Chip status register: Write Enable Latch (WEL) is set<br>
Chip status register: Write In Progress (WIP/BUSY) is set<br>
Resulting block protection : all blocks<br>
Found chip "SST SST25VF040B" (512 KB, SPI) at physical address
0xfff80000.<br>
[More probings ommited]<br>
[UNTESTED status warning ommited]<br>
Some block protection in effect, disabling<br>
Missing status register write definition, assuming EWSR is needed<br>
Reading flash... ftdi_write_data: -110, usb bulk write failed<br>
send_buf failed at end: 1<br>
Read operation failed!<br>
FAILED.<br>
<br>
</blockquote>
As you can see, i tried to low the SPI speed to 2MHz.<br>
Any idea? I know this part is marked as UNTESTED, but it should work
as SST25VF080B do.<br>
<br>
Thanks,<br>
Carlos<br>
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