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This commit is contained in:
David Voswinkel
2009-07-06 20:05:25 +02:00
parent 21298fc63f
commit 5cb972e7f6
3 changed files with 28 additions and 5 deletions
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15
avr/usbload/sram.c
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@@ -111,6 +111,7 @@ void sram_bulk_read_start(uint32_t addr)
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
}
inline void sram_bulk_read_next(void)
@@ -125,6 +126,7 @@ inline void sram_bulk_read_next(void)
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
}
@@ -188,11 +190,12 @@ void sram_bulk_write_start(uint32_t addr)
sreg_set(addr);
AVR_WR_PORT &= ~(1 << AVR_WR_PIN);
}
inline void sram_bulk_write_next(void)
{
AVR_RD_PORT |= (1 << AVR_RD_PIN);
AVR_WR_PORT |= (1 << AVR_WR_PIN);
counter_up();
AVR_WR_PORT &= ~(1 << AVR_WR_PIN);
}
@@ -200,6 +203,7 @@ inline void sram_bulk_write_next(void)
inline void sram_bulk_write( uint8_t data)
{
AVR_DATA_PORT = data;
}
void sram_bulk_write_end(void)
@@ -224,9 +228,18 @@ void sram_write(uint32_t addr, uint8_t data)
sreg_set(addr);
AVR_WR_PORT &= ~(1 << AVR_WR_PIN);
AVR_DATA_PORT = data;
AVR_WR_PORT |= (1 << AVR_WR_PIN);
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
asm volatile ("nop");
AVR_CS_PORT |= (1 << AVR_CS_PIN);
avr_data_in();