Поиск

Кто как решает понижение питания для внутрисхемки ,некоторых вредных панелей типа Хайлендер ХL, ЛансерX.и т.п.? УПА выдает около 3.5вольт а нужно 2.8 ,2.9. Я переделал питание путем добавки еще одного диода на днях, но панели такой пока не попалось и на практике не испытывал.

Здравствуйте уважаемые форумчане! С недавних пор стал обладателем UPA-USB(оригинал), все ничего но вчера столкнулся с проблемой, что мой прогер отказывается работать с eeprom на 3.3В, т.е. без перемычки J1. С перемычкой на 5В все работает нормально. Проверял на 24С04, 95080, 93с56, 93с46. Как же тогда им работать внутрисхемно? При чтении выскакивает ошибка: Vdd/Vcc Out of Range. Сделал тест оборудования: 5V Tests. Close J1 and press a key to continue --------------------------------------------------------------------------------------------------------------- Test1: P1=0V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=0,00V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test2: P1=8V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=8,20V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test3: P1=9V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=9,23V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test4: P1=10V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=10,15V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test5: P1=11V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=11,12V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test6: P1=12V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=12,02V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test7: P1=13V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=0V Result: P1=12,92V, P2=0,00V (L), P3=0,00V (L), P4=0,00V (L),P6=0,00V (L), P7=0,00V (L), P8=0,00V (L), P9=0,00V Test Passed --------------------------------------------------------------------------------------------------------------- Test20: P1=0V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=5V Result: P1=0,00V, P2=3,40V (L), P3=0,00V (L), P4=0,00V (L),P6=3,43V (L), P7=0,00V (L), P8=0,00V (L), P9=4,22V P9(4,22V ) not in 4,40V - 5,25V Test Failed --------------------------------------------------------------------------------------------------------------- Test21: P1=0V, P2=L, P3=L, P4=L, P6=L, P7=L, P8=L, P9=5V Result: P1=0,00V, P2=0,05V (L), P3=0,00V (L), P4=0,00V (L),P6=0,05V (L), P7=0,00V (L), P8=0,00V (L), P9=4,21V P9(4,21V ) not in 4,40V - 5,25V Test Failed --------------------------------------------------------------------------------------------------------------- Test22: P1=0V, P2=H, P3=H, P4=H, P6=H, P7=H, P8=H, P9=5V Result: P1=0,00V, P2=4,22V (H), P3=4,24V (H), P4=4,21V (H),P6=4,24V (H), P7=4,24V (H), P8=4,24V (H), P9=4,21V P9(4,21V ) not in 4,40V - 5,25V Test Failed --------------------------------------------------------------------------------------------------------------- 3.3V Tests. Open J1 and press a key to continue --------------------------------------------------------------------------------------------------------------- Test40: P1=0V, P2=Z, P3=Z, P4=Z, P6=Z, P7=Z, P8=Z, P9=3.3V Result: P1=0,00V, P2=2,48V (H), P3=0,00V (H), P4=0,00V (H),P6=2,50V (H), P7=0,00V (H), P8=0,00V (H), P9=2,85V P2(2,48V ) not in 2,50V - 3,30V P6(2,50V ) not in 2,50V - 3,30V P9(2,85V ) not in 3,00V - 3,70V Test Failed --------------------------------------------------------------------------------------------------------------- Test41: P1=0V, P2=L, P3=L, P4=L, P6=L, P7=L, P8=L, P9=3.3V Result: P1=0,00V, P2=0,03V (L), P3=0,00V (L), P4=0,00V (L),P6=0,03V (L), P7=0,00V (L), P8=0,00V (L), P9=2,84V P9(2,84V ) not in 3,00V - 3,70V Test Failed --------------------------------------------------------------------------------------------------------------- Test42: P1=0V, P2=H, P3=H, P4=H, P6=H, P7=H, P8=H, P9=3.3V Result: P1=0,00V, P2=2,82V (H), P3=2,84V (H), P4=2,80V (H),P6=2,82V (H), P7=2,82V (H), P8=2,84V (H), P9=2,82V P2(2,82V ) not in 3,00V - 3,70V P3(2,84V ) not in 3,00V - 3,70V P4(2,80V ) not in 3,00V - 3,70V P6(2,82V ) not in 3,00V - 3,70V P7(2,82V ) not in 3,00V - 3,70V P8(2,84V ) not in 3,00V - 3,70V P9(2,82V ) not in 3,00V - 3,70V Test Failed --------------------------------------------------------------------------------------------------------------- Test60 955A8DFDF62202AF Test Passed --------------------------------------------------------------------------------------------------------------- 6 Tests failed Может было у кого-нибудь подобное или кто знает пути решения?