WIZ750SR-100 TCP GPIO control

Question

Dear Sir or Madam, I try to change the state of GPIOA of my WIZ750SR-100 board through TCP but the PIN does not change state. I open TCP connection to: 192.168.11.2 and port: 50001 I check the MAC: SENT: {4D}{41}{FF}{FF}{FF}{0D}{0A}{50}{57}{20}{0D}{0A}{4C}{49}{0D}{0A} RECEIVED:{4D}{41}{00}{08}{DC}{56}{53}{FF}{0D}{0A}{50}{57}{20}{0D}{0A}{4C}{49}{31}{39}{32}{2E}{31}{36}{38}{2E}{31}{31}{2E}{32}{0D}{0A} which means my MAC is: {00}{08}{DC}{56}{53}{FF} after that I want to set GPIO A as output: SENT: {4D}{41}{00}{08}{DC}{56}{53}{FF}{0D}{0A}{50}{57}{20}{0D}{0A}{43}{41}{31}{0D}{0A} RECEIVED: {4D}{41}{00}{08}{DC}{56}{53}{FF}{0D}{0A}{50}{57}{20}{0D}{0A} Is that answer ok? After that I want to set GPIO A HIGH: SENT: {4D}{41}{00}{08}{DC}{56}{53}{FF}{0D}{0A}{50}{57}{20}{0D}{0A}{47}{41}{31}{0D}{0A} RECEIVED:{4D}{41}{00}{08}{DC}{56}{53}{FF}{0D}{0A}{50}{57}{20}{0D}{0A} But the PIN does not change state. It changes nothing (GPIOA remains LOW). Should the answers be different? Am I doing something wrong? Regards,

becky · Answer

Hello, I tested it. Set GPIOA to HIGH SENT : RECEIVED: image720×960 566 KB Set GPIO A to low SENT : RECEIVED: image720×960 526 KB It worked. So I hope you check the GPIOA pin once more. image905×755 445 KB