|
|
@@ -22,7 +22,8 @@ end)
|
|
|
local music_dir = "/music/"
|
|
|
|
|
|
function music_demo_start()
|
|
|
- sys.wait(1000) -- 启动延时
|
|
|
+ -- sys.wait(1000) -- 启动延时
|
|
|
+ local tag_len = 0
|
|
|
local spiId = 0
|
|
|
local result = spi.setup(
|
|
|
spiId,--串口id
|
|
|
@@ -61,9 +62,9 @@ function music_demo_start()
|
|
|
data = f:read(10)
|
|
|
if data:sub(1, 3) == 'ID3' then
|
|
|
in_buff:copy(nil, data)
|
|
|
- log.info("jump head", in_buff:query(6, 4, true))
|
|
|
- f:seek(SEEK_SET, in_buff:query(6, 4, true))
|
|
|
-
|
|
|
+ tag_len = ((in_buff:query(6, 1, true) & 0x7f) << 21) + ((in_buff:query(7, 1, true) & 0x7f) << 14) + ((in_buff:query(8, 1, true) & 0x7f) << 7) + (in_buff:query(9, 1, true) & 0x7f)
|
|
|
+ log.info("jump head", tag_len)
|
|
|
+ f:seek(SEEK_SET, tag_len)
|
|
|
end
|
|
|
in_buff:del()
|
|
|
data = f:read(2048)
|
alienwalker