ColdFire/68K Microcontrollers and ProcessorsのトピックRe: MCF5223: using of CFM command to write a really big array in flash

MCF5223: using of CFM command to write a really big array in flash

sev — Fri, 08 Aug 2008 15:52:25 GMT

Hi,

I use the CFM module to copy 128 char arrays (a file dowloaded throw the UART) into the flash by using the back door.

However, After several copy in flash, the process speed become really low.

has anybody any idea on the reason ?

Really thanks for your help.

Sév

Re: MCF5223: using of CFM command to write a really big array in flash

Kremer — Fri, 29 Aug 2008 20:44:58 GMT

Are you really waiting for it to finish write the current data?

while( !(MCF_CFM_CFMUSTAT & MCF_CFM_CFMUSTAT_CCIF));

I´ve did an ehternet bootloader using the CFM fro internal flash reprogram and never faced this behavior you mentioned.

Re: MCF5223: using of CFM command to write a really big array in flash

doublev724 — Thu, 22 Jul 2010 03:38:57 GMT

Hi Kremer

Did you use RTCS for ethernet and write new image to flash througth CFM commands?

I am working a similar project and find the "while( !(MCF_CFM_CFMUSTAT & MCF_CFM_CFMUSTAT_CCIF));" never returns. Did you get similar issues?

song