Jimmy Fang
/
TEST_SPI_0724
SPU Master
main.cpp@0:f392d06ebab0, 2019-07-24 (annotated)
- Committer:
- jimmy4399
- Date:
- Wed Jul 24 01:54:52 2019 +0000
- Revision:
- 0:f392d06ebab0
SPI Master;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jimmy4399 | 0:f392d06ebab0 | 1 | #include "mbed.h" |
jimmy4399 | 0:f392d06ebab0 | 2 | |
jimmy4399 | 0:f392d06ebab0 | 3 | DigitalOut cs(PB_6); |
jimmy4399 | 0:f392d06ebab0 | 4 | |
jimmy4399 | 0:f392d06ebab0 | 5 | SPI spi(PA_7, PA_6, PB_3); // mosi, miso, sclk |
jimmy4399 | 0:f392d06ebab0 | 6 | |
jimmy4399 | 0:f392d06ebab0 | 7 | void init(void) |
jimmy4399 | 0:f392d06ebab0 | 8 | { |
jimmy4399 | 0:f392d06ebab0 | 9 | spi.format(8,0); |
jimmy4399 | 0:f392d06ebab0 | 10 | spi.frequency(1000000); //default frequency 1MHZ |
jimmy4399 | 0:f392d06ebab0 | 11 | cs = 1; |
jimmy4399 | 0:f392d06ebab0 | 12 | } |
jimmy4399 | 0:f392d06ebab0 | 13 | |
jimmy4399 | 0:f392d06ebab0 | 14 | int main() |
jimmy4399 | 0:f392d06ebab0 | 15 | { |
jimmy4399 | 0:f392d06ebab0 | 16 | while(1) |
jimmy4399 | 0:f392d06ebab0 | 17 | { |
jimmy4399 | 0:f392d06ebab0 | 18 | cs = 0; |
jimmy4399 | 0:f392d06ebab0 | 19 | |
jimmy4399 | 0:f392d06ebab0 | 20 | spi.write(0x8F); |
jimmy4399 | 0:f392d06ebab0 | 21 | |
jimmy4399 | 0:f392d06ebab0 | 22 | cs = 1; |
jimmy4399 | 0:f392d06ebab0 | 23 | } |
jimmy4399 | 0:f392d06ebab0 | 24 | } |