Posted on June 15, 2016 at 15:50Hello all,
I'm facing an issue with sending commands (and time-stamp) from PC to MCU (Stm32L151) via USB_VCP. Following the idea from
http://www.instructables.com/id/Synchronise-DS3221-RTC-with-PC-via-Arduino/?ALLSTEPS
, I was able to send PC time via USART using a Batch script. But, the same script isn't working for USB_VCP. I tried to send single character via script/LabVIEW but MCU can't recognize it. MCU can only recognize character/string sending from uTerm software.
Am I missing something ? Is it mandatory to use Hyper-terminal software to communicate with MCU via USB_VCP ? I'm attaching the Batch Script file for reference: (Output ''S33,D22,H11,T04,M05,J16,'' for 11:22:33 05/04/2016)
Batch Script:
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mode COM11 BAUD=115200 PARITY=n DATA=8
@echo off
for /F ''usebackq tokens=1,2 delims=='' %%i in (`wmic os get LocalDateTime /VALUE 2^>NUL`) do if '.%%i.'=='.LocalDateTime.' set ldt=%%j
set hours=%ldt:~8,2%
set minutes=%ldt:~10,2%
set /A seconds=%ldt:~12,2%+2
set miliSeconds=%ldt:~15,3%
:loop
if %TIME% LSS %hours%:%minutes%:%seconds%.00 goto loop
for /F ''usebackq tokens=1,2 delims=='' %%i in (`wmic os get LocalDateTime /VALUE 2^>NUL`) do if '.%%i.'=='.LocalDateTime.' set ldt=%%j
echo S%ldt:~12,2%,D%ldt:~10,2%,H%ldt:~8,2%,T%ldt:~6,2%,M%ldt:~4,2%,J%ldt:~2,2%, >COM11
set /A seconds=%ldt:~12,2%+4
:loop2
if %TIME% LSS %hours%:%minutes%:%seconds%.00 goto loop2
