Mercurial > ~darius > hgwebdir.cgi > stm32temp
comparison spi.c @ 8:58d76cf522ff
Split out code into separate files.
| author | Daniel O'Connor <darius@dons.net.au> |
|---|---|
| date | Sat, 04 Feb 2012 13:29:31 +1030 |
| parents | |
| children |
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| 7:9404b9869c27 | 8:58d76cf522ff |
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| 1 #include <stdint.h> | |
| 2 #include "spi.h" | |
| 3 #include "stm32f10x.h" | |
| 4 | |
| 5 uint8_t | |
| 6 SPI_WriteByte(uint8_t out) { | |
| 7 uint8_t in = 0; | |
| 8 | |
| 9 /* Wait until the transmit buffer is empty */ | |
| 10 while (SPI_I2S_GetFlagStatus(SPI1,SPI_I2S_FLAG_TXE) == RESET) | |
| 11 ; | |
| 12 | |
| 13 /* Send the byte */ | |
| 14 SPI_I2S_SendData(SPI1, out); | |
| 15 | |
| 16 /* Wait until a data is received */ | |
| 17 while (SPI_I2S_GetFlagStatus(SPI1,SPI_I2S_FLAG_RXNE) == RESET) | |
| 18 ; | |
| 19 | |
| 20 /* Get the received data */ | |
| 21 in = SPI_I2S_ReceiveData(SPI1); | |
| 22 | |
| 23 /* Return the shifted data */ | |
| 24 return (in); | |
| 25 } | |
| 26 |