How to import files on my raspberry?

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hey everyone,
for my project i need to import some files from a microcontroleur to my raspberry pi 3 and i need some help .
Please any suggestion!!!

What I have tried:

i need help to know hox to proceed.thnx

Posted 6-Mar-18 0:22am

Myriem el

Updated 6-Mar-18 0:31am

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CPallini · Answer 1 · 2018-03-06T00:28:00

Solution 1

It depends on the communication medium between the raspberry and the microcontroller. For instance if you are using the UART (serial communication) then you have to implement a (very simple) protocol for transferring binary data.

Posted 6-Mar-18 0:28am

CPallini

Comments

Myriem el 6-Mar-18 6:36am

yes i'm using a serial communication a rs323 usb cable,how can a implement this protocol

CPallini 6-Mar-18 10:04am

So you are probably using a USB to TTL converter. At first, make sure you are able to read and write simple strings. Then, you could try transferring binary blocks of data. In a minimalistc approach you first transfer a header (containing file info like, length, etc...) then trasfer a sequence of binary blocks of data (the file itsef). You should probably use a CRC on every block.

Myriem el 7-Mar-18 4:24am

do i need pyserial?

CPallini 7-Mar-18 4:46am

It would be handy (that is yes you need it).

Myriem el 18-Mar-18 16:55pm

sorry for the delayed respons i choosed to work with uart so i need to activate uart on my raspberry pi 3 and i dindn't find a good tutoriel

CPallini 19-Mar-18 4:30am

The following, I suppose, it is a good starting point:
https://spellfoundry.com/2016/05/29/configuring-gpio-serial-port-raspbian-jessie-including-pi-3/

Myriem el 19-Mar-18 6:35am

i followed this tuto to enable uart ,now i need to get sure that i'll receive data from my microcontroler .how can i doit?

CPallini 19-Mar-18 10:56am

There are many available tutorials on the web, for instance:
https://www.elinux.org/Serial_port_programming

Myriem el 19-Mar-18 16:28pm

can i use a normal rs232 with raspberry pi 3

CPallini 19-Mar-18 16:58pm

You need a level shifter for that. See for instance
https://www.raspberrypi.org/documentation/configuration/uart.md
As the linked page suggests, an alternative could be a (very cheap) USB to TTL adapter.