memory - UART to SD Card -


i'm trying implement method write data sd card dspic33f. can transmit data via uart bluetooth , usb, can't find online in regards writing sd card via uart; seems spi.

i would use spi, i'm using i2c , seems difficult use both spi , i2c on same pic, due them sharing pins.

so, can suggest information on writing data sd card via uart, or maybe way use both spi , i2c concurrently?

all want form of storage method, if can suggest method, maybe eeprom or usb flash drive, i'm ears. need @ least 2gb of storage, more better.

most sd cards natively support spi communication not uart direct uart connection isn't possible. recommend against usb flash drive there lot of overhead there complicates things. , eeprom use spi or i2c you're still left problem of having 1 set of peripheral pins in use.

your best option given chip using use peripheral pin select feature map available pins 4 spi pins need. section 11.6 of datasheet has explanation of how remap pin functions. easiest solution.

one other approach possibly use use uart communicate pic has spi pins available that, too, introduces lot of overhead , complexity.


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