Fusebit Doctor, AVR, Восстановление фьюзов микроконтроллеров
Многие радиолюбители знают (иногда на собственном печальном опыте), что микроконтроллер AVR можно вывести из строя неосторожным программированием настроечных бит (так называемых фьюзов). Будучи запрограммированными неправильно, эти биты сохраняются в энергонезависимой памяти, и могут привести к невозможности дальнейшего программирования микроконтроллера или выбору фьюзами его тактовой частоты. По крайней мере невозможно восстановить микроконтроллер обычными средствами, без наличия специального высоковольтного HVPP/HVSP программатора.
ДокументациЯ:
http://dixom.ru/zverchproject/vosstanovlenie-fyuzov-avr-mikrokontrollerov
http://www.getchip.net/posts/059-ispravlyaem-avr-fyuzy-pri-pomoshhi-atmega-fusebit-doctor/
http://programmator-ua.ucoz.ru/publ/atmega_fuse_doctor_variant_plat_pod_proshivki_v_2_11_i_v_2_12/1-1-0-9
**Firmware on Fusebit Doctor AVR MCU**
http://dixom.ru/images/filesstati/fusebitdoctor/files/firmwareV2.11.rar
**BOM:**
Label Name Value Footprint
C1,C4,C5,C6 smd ceramic capacitor 100nF 0805
C2 smd ceramic capacitor 1uF 0805
C3 smd ceramic capacitor 470pF 0805
C7 smd tantalum capacitor 4.7uF 1206
C8 smd tantalum capacitor 220uF 7343
C9 smd tantalum capacitor 100uF 7343
R1,R2 smd resistor 330R 0805
R35-R40 smd resistor 300R 0805
R3-R11,R14-R22,R25,R27,R28,R32 smd resistor 1k 0805
R12,R24 smd resistor 100R 0805
R13,R23,R29 smd resistor 4.7k 0805
R26 smd resistor 180R 0805
R30 smd resistor 10k 0805
R31 smd resistor 1.5k 0805
R33 smd resistor 1R 0805
R34 smd resistor 13k 0805
VT1,VT3 smd transistor BC857 SOT-23
VT2 smd transistor BC847 SOT-23
D1 smd diode 1N5819 DO-214AC
L1 smd inductor 220uH CDRH104R
U1 Atmega8 QFP-32
U2 MC34063AD SOP-8
U3 CP2102 QFN-28
GOOD,BAD,TX,RX,PWR,USB,AUTO,ERASE,HVSP,HVPP smd led 1206
AUTO,ERASE,HVSP smd self-locking switch 5.8x5.8mm
START smd tacktile switch 6x6mm
Fusebit Doctor, AVR, Восстановление фьюзов микроконтроллеров
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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