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Hi
I am using at91sam7x256 board In our product only one parameter ID has to be set and store in the product .So for this one parameter using external eprom is not an ecnomical . and also in our product we provides option for user to set ID ie not hard coded one So How can I allot memory for setting this parameter in flash . how to identify memory location vacant place in flash . Is there any problem to use flash this purpose my bin file size is 80KB please helpme ...
Regards Rajeesh
Sorry - what did that have to do with "Generation squireware - arn7 RTOS" ?!
"using external eprom is not an ecnomical"
In that case, you're going to have to ues some specific feature of the chip itself - so this is a question for the chip manufacturer - not Keil.
Chip manufacturers often provide Application Notes for things like this - have you checked their website?
I haven't spent the time looking through all the features of your chip. But if it supports IAP - In Application Programming - then you can use one flash sector (such as the last one) to store your parameter.
Quite a lot of embedded devices are using a flash sector for configuration store, since it is expensive to combine EEPROM when designing processors, so quite fiew processors have an internal EEPROM.
Check the manufacturer's website for any Application Notes or similar to illustrate this...
sorry heading mistake........
Thanks ... Rajeesh.