MSC-MOD20 > timing (UART) > SD init / open / write / close / SD read

Environment

microSD module: MSC-MOD20 ( http://www.microtechnica-shop.jp/shopdetail/000000000026/ )
  - ALFAT SoC
microSD: 2GB SD (not SDHC) 

ALFAT SoC

• version 2.0.0
• connection: UART > RX, TX, GND

Tool

rs232cTerminal v0.5
http://qiita.com/7of9/items/80e93ec08fe06c5b24a1

Result for SD init/open/write/close

Below is the case where there is no error.

• I M: command
  • TX: 10:02:29.855
  • RX: 10:02:30.009
• O 1W>M:\123.txt
  • TX: 10:02:40.055
  • RX: 10:02:40.068
• W 1>B
  • TX: 10:02:48.656
  • RX: 10:02:48.753
• HELLO WORLD
  • TX: 10:02:54.056
  • RX: 10:02:54.072
• C 1
  • TX: 10:03:03.657
  • RX: 10:03:03.676

SD read

• O 1R>M:\123.txt
  • TX: 10:09:59.928
  • RX: 10:09:59.947
• R 1Z>B
  • TX: 10:10:16.629
  • RX: 10:10:16.661
• C 1
  • TX: 10:10:22.929
  • RX: 10:10:22.948