AVR32 USARTs

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AVR32 USARTs

• CS-423
• Dick Steflik

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Block Diagram
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Options
struct usart_options_t unsigned long
baudrate unsigned char charlength
unsigned char paritytype unsigned short
stopbits unsigned char channelmode wher
e parity stop bits
channelmode 0 even
0 1 bit 0 normal
1 odd 1 1.5 bits 1
auto echo 2 space 2
2 bits 2 local loopback
3 mark 3 timeguard 3
remote loopback 4 none

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Driver Functions
void usart_reset( volatile struct
avr32_usart_t usart) void
usart_init_rs232( volatile struct avr32_usart_t
usart, struct usart_options_t opt, long
cpu_hz)? int usart_send_addr(volatile struct
avr32_usart_t usart, int addr) int
usart_write_char(volatile struct avr32_usart_t
usart, int c) inline void usart_bw_write_char(v
olatile struct avr32_usart_t usart, int
c) int usart_putchar(volatile struct
avr32_usart_t usart, int c) int
usart_read_char(volatile struct avr32_usart_t
usart, int c) int usart_getchar(volatile
struct avr32_usart_t usart) void
usart_reset_status(volatile struct avr32_usart_t
usart)