bus pirate spi flash

spi-flash.ls

require! {
  'get-stdin': input
}

BYTE_PER_BLOCK = 256
BYTE_PER_LINE = 8
BASE = 0

out = console.~log

b3 = -> [
  (it.>>.16).&.0xff
  (it.>>.8).&.0xff
  (it.>>.0).&.0xff
]

hex-byte = (x) ->
  s = x.toString(16).toUpperCase()
  '0x' + '0'*(2 - s.length) + s

WRITE_EN = '[0x06]'
WRITE_CMD = '[0x02'
ERASE_4K  = '[0x20 0 0 0]'
ERASE_32K = '[0x52 0 0 0]'
ERASE_64K = '[0xD8 0 0 0]'
ERASE_ALL = '[0x60]'

input.buffer! .then (buf) ->
  for i from 0 til buf.length by BYTE_PER_BLOCK
    out do
      WRITE_EN
      WRITE_CMD
      b3 (BASE + i) .map hex-byte .join ' '
    block = buf.slice(i, i + BYTE_PER_BLOCK)
    for j from 0 til block.length by BYTE_PER_LINE
      line = block.slice(j, j + BYTE_PER_LINE)
      out ...[hex-byte .. for line]
    out ']'
    out ''
  out ''