[Elecraft] Fwd: K3 Failed DSP Firmware Download

[Dick Dievendorff]

Dick

On Feb 6, 2011, at 15:08, Dick Dievendorff <dieven at comcast.net> wrote:

> The PIC18F8722 microcontroller used has 128KB of flash program memory and a bit less than 4KB of RAM. Its a Harvard architecture machine, not the Von Neumann model. Your "simple" suggestion is infeasible. There is no place on chip to buffer the firmware in its entirety. 
> 
> Dick, K6KR
> 
> On Feb 6, 2011, at 14:53, Ross Primrose N4RP <n4rp at aiko.com> wrote:
> 
>> On 2/6/11 3:36 PM, Don Wilhelm wrote:
>>> I do not know how any additional degree of "robustness" in K3 Utility
>>> could correct for that condition.
>>> 
>> 
>> Simple... Don't write ANYTHING to the K3 EEPROM (I assume) until the K3 
>> has received the ENTIRE firmware file w/o errors. Blocks with errors can 
>> always be resent....
>> 
>> 73, Ross N4RP
>> 
>> -- 
>> FCC Section 97.313(a) “At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.”
>> 
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