LEDs for D13, TX, and RX are more in line with Uno-like behavior during sketch uploading.
D13 flashes on reboot, TX and RX flash with USB data transfer.
This commit is contained in:
Zach Eveland
parent
5b453fd606
commit
b8a2daf8bc
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@ -13,87 +13,86 @@
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@ -119,6 +119,9 @@ int main(void) __attribute__ ((naked));
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// STK500v1 main loop, very similar to optiboot in protocol and implementation
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int main()
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{
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TXLED0;
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RXLED0;
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LED0;
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BOARD_INIT();
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USBInit();
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void Reboot()
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{
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/* TODO - ZE - this should probably be a WDT reset instead, right? */
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UDCON = 1; // Detatch USB
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UDIEN = 0;
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asm volatile ( // Reset vector to run firmware
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#define BOARD_INIT() DDRC |= (1<<7); DDRB |= (1<<0); DDRE |= (1<<6); CPU_PRESCALE(0); DISABLE_JTAG();
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#define LED0 PORTC &= ~(1<<7)
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#define LED1 PORTC |= (1<<7)
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#define TXLED0 PORTE &= ~(1<<6)
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#define TXLED1 PORTE |= (1<<6)
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#define RXLED0 PORTB &= ~(1<<0)
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#define RXLED1 PORTB |= (1<<0)
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#define TXLED0 PORTE |= (1<<6)
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#define TXLED1 PORTE &= ~(1<<6)
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#define RXLED0 PORTB |= (1<<0)
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#define RXLED1 PORTB &= ~(1<<0)
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#define TRANSFER_PGM 0x80
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#define TRANSFER_RELEASE 0x40
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static
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void Send(volatile const u8* data, u8 count)
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{
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TXLED1; // light the TX LED
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while (count--)
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UEDATX = *data++;
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}
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void Recv(volatile u8* data, u8 count)
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{
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RXLED1; // light the RX LED
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while (count--)
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*data++ = UEDATX;
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}
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static inline u8 Recv8()
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{
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RXLED1; // light the RX LED
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return UEDATX;
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}
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static inline void Send8(u8 d)
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{
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TXLED1; // light the TX LED
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UEDATX = d;
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}
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u8 temp = 0;
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for (temp=100; temp; temp--)
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asm volatile("nop\n\t" "nop\n\t" "nop\n\t" "nop\n\t"::);
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RXLED0; // we turn the RX and TX LEDs on in the relevant Send or Recv instruction
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TXLED0; // we turn them off here after some time has passed to ensure a minimum on time.
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}
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if (!--_timeout)
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if (!--_timeout) {
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TXLED0; // switch off the RX and TX LEDs before starting the user sketch
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RXLED0;
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Reboot(); // USB not connected, run firmware
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}
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LEDPulse();
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// LEDPulse();
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}
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return -1;
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}
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Loading…
Reference in New Issue