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Buffer for RX is set incorrectly.
barebox@Phytec phyCORE-i.MX27:/ spi -r 128 -v
device config
bus_num = 0
max_speed_hz = 1000000
chip_select = 0
mode = 0x0
bits_per_word = 8
wrote 0 bytes
00000000:
read 128 bytes
00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
unable to handle paging request at address 0x4dffd3d0
pc : [<a7f05ec4>] lr : [<a7f05ebc>]
sp : a7fff890 ip : a7fff860 fp : a7f68820
r10: a6ffe9bc r9 : 00000000 r8 : 00000001
r7 : a6ffe9ec r6 : a6f00000 r5 : a6ffe9ec r4 : a6ffe9e4
r3 : a6ffe9e4 r2 : a6ffe9e5 r1 : a6ffe9e4 r0 : 4dffd3cc
Flags: nZCv IRQs off FIQs off Mode SVC_32
...
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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usefull to debug spi
The command allow to read/write on a spi device
Usage: spi [OPTION] [data to write 0xXX]
write/read spi device.
-b <bus_num> spi bus number (default = 0)
-r <count> to read
-c <cs> chip select (default = 0)
-m <mode> spi mode (default = 0)
-f <hz> max_speed_hz (default = 1MHz)
-w <bit> bits_per_word (default = 8)
-v verbose
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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