MSC-MOD20 > timing (UART) > I M: command

Environment

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

Related https://www.ghielectronics.com/community/forum/topic?id=23533

ALFAT SoC

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

Tool

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

Result for I M:command

with SD mounted

boot time: 09:02:08:039

• the first after the power on boot
  • TX: 09:02:08.759
  • RX: 09:02:08.907
  • about 150 msec
• 2nd
  • TX: 09:02:10.445
  • RX: 09:02:10.474
  • about 130 msec
• 3rd
  • TX: 09:02:11.445
  • RX: 09:02:11.466
  • about 120 msec

with SD unmounted

boot time: 09:09:04.451

• the first after the power on boot
  • TX: 09:09:05.016
  • RX: 09:09:08.310
  • about 3.3 sec
• 2nd
  • TX: 09:09:09.517
  • RX: 09:09:12.805
  • about 3.3 sec
• 3rd
  • TX: 09:09:13.618
  • RX: 09:09:16.915
  • about 3.3 sec