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发表于 2019-10-26 20:53:00
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' t) F# i8 y; m4 x2 L: @求指点 问题出在哪儿 跪谢' I) g% _4 U q4 Z' y# S/ g' [
0 J m: A$ s8 e' H s) R/ u# G) ^Marvell>> sf probe
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machine id: 59d27c40ee176d8a9690c9e459a049ad6 g) Q& w5 m0 j& i( q5 G7 Z
SF: Detected gd25lq64c with page size 256 Bytes, erase size 4 KiB, total 8 MiB
+ d* V7 Q( Z; B/ U; N; BMarvell>> sf updatemacsn 001132B60655 1980S6R9Z0BSM. \& a2 a0 R5 L
sf - SPI flash sub-system* @, D, o+ ~& E/ \6 C
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Usage:# p' I. }. }1 P4 t9 }
sf probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus
+ q' h5 X, u, O3 L- e% b and chip select
1 s7 j* v- m- z# dsf read addr offset|partition len - read `len' bytes starting at1 J& } V# ?/ E$ q
`offset' or from start of mtd
) P7 k& y4 U/ S `partition'to memory at `addr'
+ P' V" g5 B& X, o) o* Nsf write addr offset|partition len - write `len' bytes from memory& f w4 f+ H% Z1 L# k
at `addr' to flash at `offset'
. Z/ [# R( b$ i5 `/ `: B or to start of mtd `partition'0 \0 g* R; V: O6 ^, T6 m* ]& W
sf erase offset|partition [+]len - erase `len' bytes from `offset'
' Q* w" I4 s+ @- g' f1 a5 h& G or from start of mtd `partition'
5 Z1 }4 R) ?& Q* p, y- M( w `+len' round up `len' to block size, r* \4 y! [# r! t4 H8 ^# S
sf update addr offset|partition len - erase and write `len' bytes from memor y
. N- c- e$ D9 I3 u' ^$ M2 t1 n at `addr' to flash at `offset'
: @" r8 u3 v Z1 X or to start of mtd `partition'
}& J/ \( E9 n# F" \6 C; ksf protect lock/unlock sector len - protect/unprotect 'len' bytes starting
8 U* y8 S+ Q% C! g at address 'sector'
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Marvell>>* T4 Y) l$ l+ k1 e0 s9 c
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