Revision 1543
Added a bunch of debug prints to the library
| spi.c | ||
|---|---|---|
| 27 | 27 |
int spi_init (spi_fun_recv_t recv_func, spi_fun_recv_complete_t recv_complete_func) |
| 28 | 28 |
{
|
| 29 | 29 |
if(spi_initd) {
|
| 30 |
DRAGONFLY_DEBUG_PRINT("ERROR: SPI already init'd\r\n");
|
|
| 30 | 31 |
return ERROR_INIT_ALREADY_INITD; |
| 31 | 32 |
} |
| 32 | 33 |
|
| ... | ... | |
| 58 | 59 |
**/ |
| 59 | 60 |
int spi_transfer(char bytes) |
| 60 | 61 |
{
|
| 61 |
if(!spi_initd) |
|
| 62 |
return ERROR_LIBRARY_NOT_INITD; |
|
| 62 |
if(!spi_initd) {
|
|
| 63 |
DRAGONFLY_DEBUG_PRINT("ERROR: SPI not init'd\r\n");
|
|
| 64 |
return ERROR_LIBRARY_NOT_INITD; |
|
| 65 |
} |
|
| 63 | 66 |
|
| 64 | 67 |
spi_bytes = bytes; |
| 65 | 68 |
PORTB &= ~SS; /* Set SS low to initiate transmission */ |
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