2018-07-30 15:54:44 +08:00
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#ifndef __USART_H
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#define __USART_H
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2019-08-08 22:57:33 +08:00
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#include "common.h"
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#include "usart_defs.h"
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2019-04-14 17:08:44 +08:00
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2019-08-08 22:57:33 +08:00
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#define USART_BUFFLEN 512
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#define USART_FIFOLEN (2*USART_BUFFLEN)
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2019-06-13 05:59:00 +08:00
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// Higher baudrates are pointless, only increasing overflow risk
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2019-05-19 03:40:45 +08:00
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2019-05-15 08:15:19 +08:00
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extern uint32_t usart_baudrate;
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extern uint8_t usart_parity;
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2019-04-21 01:17:32 +08:00
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2019-05-15 08:15:19 +08:00
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void usart_init(uint32_t baudrate, uint8_t parity);
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2019-04-23 04:58:45 +08:00
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int usart_writebuffer_sync(uint8_t *data, size_t len);
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2019-04-20 07:47:50 +08:00
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uint32_t usart_read_ng(uint8_t *data, size_t len);
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2019-04-21 01:17:32 +08:00
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uint16_t usart_rxdata_available(void);
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2019-04-14 17:08:44 +08:00
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2018-07-30 15:54:44 +08:00
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#endif
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