MMC and PIC

[Yuantu Huang]

Hi Ron & kasapo,

I am interested in MMC card too. Could you please present a piece of code how PIC reads and writes from/to MMC card? I am using EEPROM which seems not good enough (two small). My project needs to store more than 10MBytes log information using PIC.

Thank you.

[kasapo]

hi Yuantu,

if 10 mB is enough for you check sa25f160 serial flash from saifun semiconductor. it is 16 mB.

and i found 2 website about mmc and pic basic codes

http://www.compsys1.com/workbench/

http://www.captain.at/electronics/pic-mmc/

ron thanks for information.

[Ron Marcus]

I have used Compsys1 for the software. It is reasonable, and it formats the card as a fat 16 readable "disk" for the average computer. This means you don't have to feed the info into a serial port, just plug the mem card into the card reader port and open it like any other folder.It saves a lot of time, and if this will be a consumer product, makes it more convenient for them.

Ron

[Yuantu Huang]

Hi Ron & kasapo,

Thank you very much.

I will visit the web site you provided. Our products may have 5000-10000 units per year. So I need to take some time to make a decision whether we use sa25f160 or Compsys1.

Best regards,

[Yuantu Huang]

Hi kasapo,

Quick question. I am using 5V power supply for PIC, but sa25f160 uses maximum 3.6V. Is it possible to communicate each other?

Thank you.

[iw2fvo]

Hi Ron & kasapo,

I am interested in MMC card too. Could you please present a piece of code how PIC reads and writes from/to MMC card? I am using EEPROM which seems not good enough (two small). My project needs to store more than 10MBytes log information using PIC.

Thank you.

Good day,
I am intereste in a program capable of writing_reading data on mmc card using picbasic: any help ? any sample code ?
Thanks
Ambrogio

[SOMRU]

I have a good idea from mmc to pic but my cohorts still want to go from pic to usb...

We are using 16f devices, I wanted to go I2C to mmc... OK and

THEY now want to go USB....

From everything I have read 18f is the way to go for usb,

I don't want to change the entire system just to record data...

would love to here other ideas....


Thanks