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How far can you get? Does the programmer work (ie. can you program/verify a simple program like toggling an I/O pin)?

You mentioned the problem was with printf. Post a simple program showing your ...

dyeatman,

I think you got MB and GB mixed up.

I don't know how you'd partition an SD drive though.

From your pic, the I2C signals look correct. Are you sure SCL and SDA aren't swapped? Did you check the power connections? And have you tried another EEPROM chip? Maybe one burned out.

Your rise times look a bit long. You can probably reduce the size of the pullup resistors. With the time div. you have set (25us) it looks like your rise times could be near 5us. The spec sheet gives ...

Sorry, to correct. On Power-On reset, Pins A4 and A6 are configured as digital inputs, the rest as analog inputs.

Pin A4 is an open drain pin. This means it can only drive low. To get the pin high, you will need a pullup reistor to Vcc.

As for pin A6, I'm not sure what the porblem could be. The datasheet does ...

Production quality programmers verify the programming results at both the maximum and minimum operating voltages. I haven't checked, but I'm fairly certain the ICDU does not. Depending on how thorough ...

I'm not quite sure what you are trying to do, but it's probably a lot harder than you'd expect. First, TV signals are usually modulated on a carrier frequency, which would require demodulation prior t ...

I haven't had any problems for quite a while with the 18LF452 chips. I don't know if that helps any. The problems I did have were programming related -> can't perform bulk erase when using ICSP at ...

http://www.piclist.com/techref/logic/xtrapins.htm
From a google search....i'm sure there is a lot more already out there

I also tried setting breakpoints using MPLAB and ICD2. What I found was that I couldn't really set the breakpoints directly in the C code. However, if you open up the disassembly, you will see assembl ...

Look in the datasheet for the 18F452. Table 22-4 shows max. external freq. to be 40MHz. Since 1 instruction cycle = 4 clock cycles, it's really only operating at 10MIPS.
I can't tell what you are tr ...

With both PICs set to use an external oscillator it may work.

However, the TTL oscillators usually spec a maximum capacitive load they will drive, usually about 30pF to 50pF. The output may be redu ...

Assuming you have the CCS compilier, look in the "drivers" directory for the file "24256.c" and in the "examples" directory for "ex_extee.c".

To break the 32 bit value into bytes you can use the "m ...

Sounds like you are doing fine. Have you checked out the files "24256.c" (in the drivers directory) and "ex_extee.c" (in the examples directory).

If your hardware is setup correctly, then the "242 ...