| Brian Silverman | df49fe3 | 2013-12-11 14:21:37 -0800 | [diff] [blame] | 1 | #ifndef CAPE_UART_BYTE_H_ |
| 2 | #define CAPE_UART_BYTE_H_ |
| 3 | |
| 4 | #include <stdint.h> |
| 5 | |
| 6 | // uart_common_configure must be called before this. |
| 7 | void uart_byte_configure(void); |
| 8 | |
| 9 | // Spins until 1 byte is received or some amount of time. The timeout is |
| Brian Silverman | 1b6fbd0 | 2013-12-12 18:08:47 -0800 | [diff] [blame] | 10 | // timeout_count*(timeout_divider+1)/30MHz. |
| Brian Silverman | df49fe3 | 2013-12-11 14:21:37 -0800 | [diff] [blame] | 11 | // The result is <0 for timeout or the received byte. |
| 12 | int uart_byte_receive(uint16_t timeout_count, uint16_t timeout_divider); |
| 13 | |
| 14 | // Spins until 1 byte can be written out. |
| 15 | void uart_byte_send(uint8_t value); |
| 16 | |
| 17 | #endif // CAPE_UART_BYTE_H_ |