diff options
Diffstat (limited to 'firmware/octoclock/bootloader/main.c')
| -rw-r--r-- | firmware/octoclock/bootloader/main.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/firmware/octoclock/bootloader/main.c b/firmware/octoclock/bootloader/main.c index b2f6730ac..5e2e6f17e 100644 --- a/firmware/octoclock/bootloader/main.c +++ b/firmware/octoclock/bootloader/main.c @@ -28,12 +28,17 @@ #include <debug.h> #include <network.h> +#include <util/delay.h> + #include <net/enc28j60.h> #include "octoclock/common.h" -#define wait() for(uint16_t u=4000; u; u--) asm("nop"); -#define TIME_PASSED (TCNT1 > FIVE_SECONDS || (TIFR & _BV(TOV1))) +/* + * The number for 5 seconds is close enough to 65535 that the + * timer may have overflowed before the main loop queries it. + */ +#define TIME_PASSED (TCNT1 > (TIMER1_ONE_SECOND*5) || (TIFR & _BV(TOV1))) //States static bool received_cmd = false; @@ -83,8 +88,7 @@ void handle_udp_query_packet( const octoclock_packet_t *pkt_in = (octoclock_packet_t*)payload; //Respond to query packets - if(pkt_in->proto_ver == OCTOCLOCK_FW_COMPAT_NUM && - pkt_in->code == OCTOCLOCK_QUERY_CMD){ + if(pkt_in->code == OCTOCLOCK_QUERY_CMD){ octoclock_packet_t pkt_out; pkt_out.proto_ver = OCTOCLOCK_BOOTLOADER_PROTO_VER; pkt_out.sequence = pkt_in->sequence; @@ -134,7 +138,6 @@ void handle_udp_fw_packet( case FILE_TRANSFER_CMD: boot_program_page(pkt_in->data, pkt_in->addr); - wait(); //Necessary for some reason pkt_out.code = FILE_TRANSFER_ACK; break; @@ -144,7 +147,7 @@ void handle_udp_fw_packet( break; case FINALIZE_BURNING_CMD: - //With stuff verified, burn values into EEPROM + //With stuff verified, burn CRC info into EEPROM done_burning = true; calculate_crc(&(crc_info.fw_crc), crc_info.fw_len); eeprom_write_block(&crc_info, (void*)OCTOCLOCK_EEPROM_APP_LEN, 4); @@ -196,17 +199,12 @@ int main(void){ register_udp_listener(OCTOCLOCK_UDP_FW_PORT, handle_udp_fw_packet); register_udp_listener(OCTOCLOCK_UDP_EEPROM_PORT, handle_udp_eeprom_packet); - /* - * Initialize AVR timer. This will be used to detect how much time has gone - * by with no contact from the octoclock_burn_firmware utility. If 5 seconds go by - * with no PREPARE_FW_BURN_CMD packet, the bootloader will jump into the - * existing application. - * - * This timer is polled by the main loop with each iteration instead of using - * an interrupt. - */ - TCCR1B = (1 << CS12) | (1 << CS10); - TCNT1 = 0; + //Turn LED's on to show we're in the bootloader + PORTC |= 0x20; + PORTC |= (0x20<<1); + PORTC |= (0x20<<2); + + TIMER1_INIT(); bool app_checked = false; while(true){ @@ -219,10 +217,14 @@ int main(void){ if(valid_app()) break; } - size_t recv_len = enc28j60PacketReceive(512, buf_in); - if(recv_len > 0) handle_eth_packet(recv_len); + network_check(); } + //Turn LED's off before moving to application + PORTC &= ~0x20; + PORTC &= ~(0x20<<1); + PORTC &= ~(0x20<<2); + /* * Whether the bootloader reaches here through five seconds of inactivity * or after a firmware burn just finished, it can be assumed that the application |