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add bulk sram write

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This commit is contained in:
david 2009-06-24 12:22:23 +02:00
parent 465ea1fbfe
commit 1b2b7ecbed
2 changed files with 83 additions and 13 deletions
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86
avr/usbload/sram.c
View File

@ -104,27 +104,27 @@ void sram_bulk_read_start(uint32_t addr)
#endif #endif
avr_data_in(); avr_data_in();
AVR_CS_PORT &= ~(1 << AVR_CS_PIN);
AVR_WR_PORT |= (1 << AVR_WR_PIN); AVR_WR_PORT |= (1 << AVR_WR_PIN);
AVR_RD_PORT |= (1 << AVR_RD_PIN); AVR_RD_PORT |= (1 << AVR_RD_PIN);
AVR_CS_PORT &= ~(1 << AVR_CS_PIN);
sreg_set(addr); sreg_set(addr);
AVR_RD_PORT &= ~(1 << AVR_RD_PIN); AVR_RD_PORT &= ~(1 << AVR_RD_PIN);
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
} }
void sram_bulk_read_end(void) inline void sram_bulk_read_next(void)
{ {
#ifdef DEBUG_SRAM
printf("sram_bulk_read_end:");
#endif
AVR_CS_PORT |= (1 << AVR_CS_PIN);
avr_data_in();
}
inline uint8_t sram_bulk_read(void)
{
uint8_t byte;
AVR_RD_PORT |= (1 << AVR_RD_PIN); AVR_RD_PORT |= (1 << AVR_RD_PIN);
counter_up(); counter_up();
AVR_RD_PORT &= ~(1 << AVR_RD_PIN); AVR_RD_PORT &= ~(1 << AVR_RD_PIN);
@ -138,11 +138,27 @@ inline uint8_t sram_bulk_read(void)
asm volatile ("nop"); asm volatile ("nop");
asm volatile ("nop"); asm volatile ("nop");
}
inline uint8_t sram_bulk_read(void)
{
uint8_t byte;
byte = AVR_DATA_PIN; byte = AVR_DATA_PIN;
AVR_RD_PORT |= (1 << AVR_RD_PIN); AVR_RD_PORT |= (1 << AVR_RD_PIN);
return byte; return byte;
} }
void sram_bulk_read_end(void)
{
#ifdef DEBUG_SRAM
printf("sram_bulk_read_end:");
#endif
AVR_CS_PORT |= (1 << AVR_CS_PIN);
avr_data_in();
}
uint8_t sram_read(uint32_t addr) uint8_t sram_read(uint32_t addr)
{ {
uint8_t byte; uint8_t byte;
@ -153,6 +169,7 @@ uint8_t sram_read(uint32_t addr)
avr_data_in(); avr_data_in();
AVR_CS_PORT &= ~(1 << AVR_CS_PIN); AVR_CS_PORT &= ~(1 << AVR_CS_PIN);
AVR_WR_PORT |= (1 << AVR_WR_PIN); AVR_WR_PORT |= (1 << AVR_WR_PIN);
AVR_RD_PORT |= (1 << AVR_RD_PIN); AVR_RD_PORT |= (1 << AVR_RD_PIN);
@ -179,6 +196,50 @@ uint8_t sram_read(uint32_t addr)
} }
void sram_bulk_write_start(uint32_t addr)
{
#ifdef DEBUG_SRAM
printf("sram_bulk_write_start: addr=0x%08lx\n\r", addr);
#endif
avr_data_out();
AVR_CS_PORT &= ~(1 << AVR_CS_PIN);
AVR_WR_PORT |= (1 << AVR_WR_PIN);
AVR_RD_PORT |= (1 << AVR_RD_PIN);
sreg_set(addr);
AVR_WR_PORT &= ~(1 << AVR_WR_PIN);
}
inline void sram_bulk_write_next(void)
{
AVR_RD_PORT |= (1 << AVR_RD_PIN);
counter_up();
AVR_WR_PORT &= ~(1 << AVR_WR_PIN);
}
inline void sram_bulk_write( uint8_t data)
{
AVR_DATA_PORT = data;
AVR_WR_PORT |= (1 << AVR_WR_PIN);
}
void sram_bulk_write_end(void)
{
#ifdef DEBUG_SRAM
printf("sram_bulk_write_end:");
#endif
AVR_CS_PORT |= (1 << AVR_CS_PIN);
avr_data_in();
}
void sram_write(uint32_t addr, uint8_t data) void sram_write(uint32_t addr, uint8_t data)
{ {
@ -204,6 +265,7 @@ void sram_write(uint32_t addr, uint8_t data)
} }
void sram_clear(uint32_t addr, uint32_t len) void sram_clear(uint32_t addr, uint32_t len)
{ {

10
avr/usbload/sram.h
View File

@ -148,8 +148,16 @@ void sram_clear(uint32_t addr, uint32_t len);
void sram_copy(uint32_t addr,uint8_t *src, uint32_t len); void sram_copy(uint32_t addr,uint8_t *src, uint32_t len);
void sram_bulk_read_start(uint32_t addr); void sram_bulk_read_start(uint32_t addr);
void sram_bulk_read_end(void); inline void sram_bulk_read_next(void);
inline void sram_bulk_read_end(void);
uint8_t sram_bulk_read(void); uint8_t sram_bulk_read(void);
void sram_bulk_write_start(uint32_t addr);
inline void sram_bulk_read_next(void);
inline void sram_bulk_write_end(void);
void sram_bulk_write(uint8_t data);
void sram_read_buffer(uint32_t addr,uint8_t *dst, uint32_t len); void sram_read_buffer(uint32_t addr,uint8_t *dst, uint32_t len);
uint8_t sram_check(uint8_t *buffer, uint32_t len); uint8_t sram_check(uint8_t *buffer, uint32_t len);