Ryo Od
/
mbed-os_SPITest_Slave
SPI Test (Slave)
main.cpp@1:7090a42ac6e0, 2017-05-19 (annotated)
- Committer:
- ryood
- Date:
- Fri May 19 01:26:32 2017 +0000
- Revision:
- 1:7090a42ac6e0
- Parent:
- 0:317ca984456c
work well
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ryood | 0:317ca984456c | 1 | #include "mbed.h" |
ryood | 0:317ca984456c | 2 | |
ryood | 1:7090a42ac6e0 | 3 | #define UART_TRACE (1) |
ryood | 1:7090a42ac6e0 | 4 | |
ryood | 0:317ca984456c | 5 | SPISlave spiS(D11, D12, D13, A2); // mosi, miso, sclk, ssel |
ryood | 0:317ca984456c | 6 | |
ryood | 0:317ca984456c | 7 | int main() |
ryood | 0:317ca984456c | 8 | { |
ryood | 0:317ca984456c | 9 | printf("SPISlave Test\r\n"); |
ryood | 0:317ca984456c | 10 | |
ryood | 0:317ca984456c | 11 | spiS.format(8, 0); |
ryood | 1:7090a42ac6e0 | 12 | spiS.frequency(1000000); |
ryood | 1:7090a42ac6e0 | 13 | |
ryood | 1:7090a42ac6e0 | 14 | uint8_t pdata = 0; |
ryood | 0:317ca984456c | 15 | |
ryood | 0:317ca984456c | 16 | for (;;) { |
ryood | 0:317ca984456c | 17 | if (spiS.receive()) { |
ryood | 1:7090a42ac6e0 | 18 | uint8_t rdata = spiS.read(); |
ryood | 1:7090a42ac6e0 | 19 | |
ryood | 1:7090a42ac6e0 | 20 | |
ryood | 1:7090a42ac6e0 | 21 | #if (UART_TRACE) |
ryood | 1:7090a42ac6e0 | 22 | printf("Slave: rdata:%d", rdata); |
ryood | 1:7090a42ac6e0 | 23 | |
ryood | 1:7090a42ac6e0 | 24 | uint8_t err = rdata - pdata; |
ryood | 1:7090a42ac6e0 | 25 | if (err != 1) { |
ryood | 1:7090a42ac6e0 | 26 | printf(" err: %d", err); |
ryood | 1:7090a42ac6e0 | 27 | } |
ryood | 1:7090a42ac6e0 | 28 | |
ryood | 1:7090a42ac6e0 | 29 | printf("\r\n"); |
ryood | 1:7090a42ac6e0 | 30 | #endif |
ryood | 1:7090a42ac6e0 | 31 | |
ryood | 1:7090a42ac6e0 | 32 | pdata = rdata; |
ryood | 1:7090a42ac6e0 | 33 | |
ryood | 1:7090a42ac6e0 | 34 | uint8_t sdata = rdata; |
ryood | 1:7090a42ac6e0 | 35 | spiS.reply(sdata); |
ryood | 1:7090a42ac6e0 | 36 | } |
ryood | 0:317ca984456c | 37 | } |
ryood | 0:317ca984456c | 38 | } |