SD Card Update. The original software presented in the BV Foundation made a good start at showing how to interface an SD card to the BV511. Just released ( see the downloads section ) is a new suit of programs that allows a fully implemented reading and writing to FAT16 Formatted cards. There is also available a suitable card holder from www.byvac.com
Reading
and writing to SD cards is straight forward. The difficulty is when the contents
of what has been written need to be read by another system, in particular a card
reader attached to a PC. For this it must be in a standard format that the PC
can understand. Writing using this format creates some challenging issues when
trying to implement in a microcontroller.
In the downloads section is a zip file containing all of the software required to do this along with a PDF file that explains how to use the software. Advantage has been taken of the new Scope ID that allows the buffers and internal workings to be 'hidden' whilst the useful words are exposed for the user to use. Words such as OPEN, READ, WRITE, CREATE etc.
It is quite difficult to get hold of a suitable socket for using these cards. They are all surface mount and so need a PCB in order to be able to use one successfully. A suitable holder has been made available at www.byvac.com at low cost, so there is no need to buy a cheap card reader and take it appart.
See the article and software in the Download section of this site.