Posted by Robbo on January 31, 2004, 7:43:06, in reply to "Schematic for 3068F programming interface" --Previous Message--
81.178.241.5
Have you solved your problem yet? I am about to do a similar thing.
: Hello,
: I have built my own board based on
: 3068F MCU and I have tried to uplod a
: very simple test program to the MCU.
: Unfortunately, the program doesn't
: work as expected. SCI1 TxD and RxD
: are connected through MAX202 to a DB9
: female plug. FWE is normally are tied
: to the GND through 10k resistror and
: MD2 to VCC through resistor of the
: same value. In order switch the MCU
: to the boot mode I connect FWE to VCC
: and MD2 to GND through 2x2 pin header
: and jumpers. I'm using FDT 2.2. It
: seems that FDT can connect and upload
: software to the MCU but I don't know
: what should I do next. I simply
: disconnect power supply and jumpers.
: Unfortunately, the software doesn't
: work, but it is almost impossible
: that there is a bug in software. It
: is too simple.
: I would be greateful if somebody
: could send me circuit diagram of
: tested programming interface.
: Especially I am interested in
: handling of FWE and MD2 pins.
: Thanks in advance,
: John
:
:
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