Revision 155
undid hack to main toolbox code
got something of the bootloader working
| trunk/toolbox/main.c | ||
|---|---|---|
| 143 | 143 |
init_pins(); //Set pin directions |
| 144 | 144 |
init_uart(51); //Set registers for uart |
| 145 | 145 |
/***** End Start-up Sequence *****/ |
| 146 |
while(1) {
|
|
| 147 |
PORTB |= _BV(PORTB1); |
|
| 148 |
_delay_ms(100); |
|
| 149 |
PORTB &= ~_BV(PORTB1); |
|
| 150 |
_delay_ms(100); |
|
| 151 |
} |
|
| 152 | 146 |
|
| 153 | 147 |
uint8_t r; |
| 154 | 148 |
|
| trunk/toolbox/bootloader/bootloader.c | ||
|---|---|---|
| 90 | 90 |
#define LED_PORT PORTB |
| 91 | 91 |
#define LED PORTB1 |
| 92 | 92 |
|
| 93 |
#define PAGE_SIZE 32 |
|
| 94 |
|
|
| 93 | 95 |
//Function prototypes |
| 94 | 96 |
void flash_led(uint8_t); |
| 95 | 97 |
void onboard_program_write(uint32_t page, uint8_t *buf); |
| 96 | 98 |
void (*main_start)(void) = 0x0000; |
| 97 | 99 |
|
| 98 | 100 |
//Variables |
| 99 |
uint8_t incoming_page_data[256];
|
|
| 101 |
uint8_t incoming_page_data[PAGE_SIZE];
|
|
| 100 | 102 |
uint8_t page_length; |
| 101 | 103 |
uint8_t retransmit_flag = FALSE; |
| 102 | 104 |
|
| ... | ... | |
| 112 | 114 |
uint8_t check_sum = 0; |
| 113 | 115 |
uint16_t i; |
| 114 | 116 |
|
| 115 |
// init_uart(51); //MAGIC NUMBER??
|
|
| 117 |
init_uart(51); //MAGIC NUMBER?? |
|
| 116 | 118 |
|
| 117 | 119 |
//set LED pin as output |
| 118 |
// LED_DDR |= _BV(LED); |
|
| 119 |
|
|
| 120 |
DDRB = 0x00; |
|
| 121 |
DDRB = _BV(DDB0) | _BV(DDB1) | _BV(DDB2) | _BV(DDB5); |
|
| 122 |
DDRD = _BV(DDB4); |
|
| 123 |
PORTB = 0x00; |
|
| 120 |
LED_DDR |= _BV(LED); |
|
| 124 | 121 |
|
| 125 |
// Clear timmer on OCRA1 Compare match |
|
| 126 |
// No prescale |
|
| 127 |
TCCR1B |= _BV(WGM12) | _BV(CS12); |
|
| 128 |
|
|
| 129 |
// 1 second @ 8MHz clock |
|
| 130 |
OCR1AH =0x7A; |
|
| 131 |
OCR1AL =0x12; |
|
| 132 |
|
|
| 133 |
TIMSK = _BV(OCIE1A); |
|
| 134 |
|
|
| 135 | 122 |
//flash onboard LED to signal entering of bootloader |
| 136 |
while(1) {
|
|
| 137 |
PORTB |= _BV(LED); |
|
| 138 |
_delay_ms(100); |
|
| 139 |
PORTB &= ~_BV(LED); |
|
| 140 |
_delay_ms(100); |
|
| 141 |
} |
|
| 142 | 123 |
flash_led(1); |
| 143 | 124 |
|
| 144 | 125 |
//Start bootloading process |
| 126 |
uart_send_byte(5); //Tell the world we can be bootloaded |
|
| 145 | 127 |
|
| 146 |
uart_send_byte(5); //Tell the world we can be bootloaded |
|
| 147 |
|
|
| 148 | 128 |
//Check to see if the computer responded |
| 149 | 129 |
uint32_t count = 0; |
| 150 | 130 |
uint8_t resp; |
| ... | ... | |
| 176 | 156 |
|
| 177 | 157 |
page_length = getch(); //Get the length of this block |
| 178 | 158 |
if (retransmit_flag == TRUE) goto RESTART; |
| 159 |
if(page_length > PAGE_SIZE) {
|
|
| 160 |
while(1) {
|
|
| 161 |
flash_led(1); |
|
| 162 |
} |
|
| 163 |
} |
|
| 179 | 164 |
|
| 180 | 165 |
if (page_length == 'S') {//Check to see if we are done - this is the "all done" command
|
| 181 | 166 |
//boot_rww_enable (); //Wait for any flash writes to complete? |
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