Private apis – Altera Embedded Peripherals IP User Manual
Page 99
Parameters:
dev - The UART device
ptr – destination address
len – maximum length of the data
flags – for indicating blocking/non-blocking access
for single/multi threaded
Returns:
Number of bytes read
Description:
Read data to the UART receiver buffer. UART
required to be in a known settings prior executing
this function
Table 9-16: alt_16550_uart_write
Prototype:
alt_u32 alt_16550_uart_write(altera_16550_uart_
dev* dev, const char * ptr, alt_u16 flags, int len);
Include:
<altera_16550_uart.h>
Parameters:
dev - The UART device
ptr – source address
len – maximum length of the data
flags – for indicating blocking/non-blocking access
for single/multi threaded
Returns:
Number of bytes written
Description:
Writes data to the UART transmitter buffer. UART
required to be in a known settings prior executing
this function
Table 9-17: alt_16550_uart_config
Prototype:
alt_u32 alt_16550_uart_config(altera_16550_uart_
dev* dev, UartConfig *config);
Include:
dev - The UART device
Parameters:
config – UART configuration structure to configure
UART (refer to UART device structure
Returns:
Return 0 for success otherwise fail
Description:
Configure UART per user input before initiating
read or Write
Private APIs
Table 9-18: alt_16550_irq
Prototype:
static void altera_16550_uart_irq (void* context)
UG-01085
2014.24.07
Private APIs
9-13
16550 UART
Altera Corporation