def replace_in_memory_block(data, startaddr, replace_dict):
"""
Replace memory cells in memory write commands in an XML profile
This function won't be applied to EEPROM write commands!
"""
cell_len = Adau145x.cell_len(startaddr)
assert len(data) % cell_len == 0
endaddr = startaddr + len(data) / cell_len
for repl_addr in replace_dict.keys():
if repl_addr >= startaddr and repl_addr <= endaddr:
content = replace_dict[repl_addr]
if len(content) != cell_len:
logging.error(
"Cell %s: content len is %s but cell len is %s, ignoring",
repl_addr, len(content), cell_len)
continue
assert len(content) == cell_len
address_offset = (repl_addr - startaddr) * cell_len
logging.debug("replacing memory at address {} by {}", repl_addr,
content)
data[address_offset:address_offset + len(content)] = content
def get_updates(self, xmlprofile):
replace = {}
for attribute in self.values:
(addr, length) = xmlprofile.get_addr_length(attribute)
if addr is None and attribute.startswith("0x"):
# if it's not a setting form the profile, it might be
# a memory address
try:
addr = int(attribute, 16)
length = 1
except:
logging.error("can't parse address %s", addr)
addr = None
if addr is None:
continue
val = self.values[attribute]
word_length = Adau145x.cell_len(addr)
memory = self.param_to_bytes(val, length, word_length=word_length)
if len(memory) <= self.dsp.cell_len(addr):
replace[addr] = memory
else:
# Split long replaced into single words
assert len(memory) % word_length == 0
while len(memory) > 0:
cellvalue = memory[0:word_length]
replace[addr] = cellvalue
addr += 1
memory = memory[word_length:]
return replace