bmp_main.c File Reference

Control program for Spin4/Spin5 BMP. More...

#include <string.h>
#include "lpc17xx.h"
#include "bmp.h"

Functions
static void	set_text (const char *s, uint32_t mask)
	Copy text to LCD buffer.
static void	update_lcd (void)
	Prints current status to LCD.
static void	fan_control (void)
	Regulates fan speeds to manage board temperatures. Runs once a second.
static void	check_status (void)
	General board/frame status check. Runs once a second.
static void	proc_100hz (uint32_t arg1, uint32_t arg2)
	100Hz timer tick callback
void	SysTick_Handler (void)
	System tick handler. Frequency: 1kHz.
void	c_main (cortex_vec_t *cortex_vec_tmp, bool data_ok_tmp, uint32_t arg3, uint32_t arg4)
	Main entry point.

Variables
static uint32_t	ms_tens
	counts 1ms ticks 0..9
static uint32_t	ticks
	counts 10ms ticks 0..99
bool	data_ok
	Data sector CRC OK.
uint32_t	boot_sec
	Boot block number.
cortex_vec_t *	cortex_vec
	Cortex boot vector.
static uint32_t	led2_period
	(Half) period of LED2 flash (in units of 0.01s). Used by proc_100hz()
static uint32_t	led2_timer
	Used to determine when to flash LED2. Reloaded from led2_period.
static uint32_t	shut_count
	Shut down counter. Ensures that shutdowns take 10 seconds.
static uint32_t	eth_timeout
	Ethernet indicator timeout.
static char	text [12]
	Buffer of text to show in LCD.
static uint32_t	scan_next
	Board index used with CAN scan.
static uint8_t	fan = 0
	Current fan speed. 0 (off) .. 3 (high)

Detailed Description

Control program for Spin4/Spin5 BMP.

Copyright

© The University of Manchester - 2012-2015

Author

Steve Temple, APT Group, School of Computer Science

Function Documentation

set_text()

static void set_text ( const char *  s, uint32_t  mask  )

static

Copy text to LCD buffer.

Parameters

[in]	s	String to write. Up to 11 characters long.
[in]	mask	Selects which status indicators show

proc_100hz()

static void proc_100hz ( uint32_t  arg1, uint32_t  arg2  )

static

100Hz timer tick callback

Parameters

arg1	unused
arg2	unused

SysTick_Handler()

void SysTick_Handler

(

void

)

System tick handler. Frequency: 1kHz.

System tick interrupt handler.

c_main()

void c_main	(	cortex_vec_t *	cortex_vec_tmp,
		bool	data_ok_tmp,
		uint32_t	arg3,
		uint32_t	arg4
	)

Main entry point.

Parameters

cortex_vec_tmp	Cortex boot vector
data_ok_tmp	Data sector CRC OK
arg3	unused
arg4	unused

Variable Documentation

eth_timeout

uint32_t eth_timeout

static

Ethernet indicator timeout.

Used to ensure that the ethernet indicator shows for 0.25s after packet reception.

text

char text[12]

static

Buffer of text to show in LCD.

Written to by set_text(). Copied over to LCD in update_lcd().