Hey guys, Im trying to make a nice little project that will allow people to use USART to reset chips to factory fusebits, using of course SPI... now I really have not started the project execpt some simple code for just testing spi sending and master stuff like that... now I have been studying the serial downloading information inside datasheets (mainly attiny13, its going to be my ginny pig) and Im pretty sure I understand how it works just fine like here is the 'read fuse bits' command
| byte 1 | byte 2 | byte 3 | byte4 | 0101 0000--0000 0000--xxxx xxxx--oooo oooo
x = Doesent matter, so Ill just send 1's
o = fuse bits, 1 = unprogrammed
my question is, when in master mode, can you read bits as well? or am i going to have to switch between master to slave before the fourth byte? I havent really ever used SPI before!