void ihx_read_print(__xdata uint8_t* start_addr, uint16_t len) {
__xdata char buff[45];
uint8_t byte, sum, i, chunk;
while (len) {
sum = 0;
if(len > 0x10)
chunk = 0x10;
else
chunk = len;
buff[0] = ':';
to_hex8_ascii(&buff[1], chunk);
sum += chunk;
// Write address into buffer
to_hex16_ascii(&buff[3], (uint16_t)start_addr);
sum += (uint16_t)start_addr & 0xFF;
sum += ((uint16_t)start_addr >> 8) & 0xFF;
// Write record type into buffer
to_hex8_ascii(&buff[7], 0x00);
// Write data bytes into buffer
for (i=0; i<chunk; i++) {
byte = *(start_addr+i);
sum += byte;
to_hex8_ascii(&buff[9 + 2*i], byte);
}
// Write checksum into buffer
to_hex8_ascii(&buff[9 + 2*i], (uint8_t)(-(int8_t)sum));
buff[11 + 2*i] = '\n';
buff[12 + 2*i] = 0;
// Print buffer over usb
usb_putstr(buff);
// Updates for next go round
if(len > 0x10) {
start_addr += 0x10;
len -= 0x10;
} else // we're done
len = 0;
}
usb_putstr(":00000001FF\n");
}
/**
* Send given value as hexadecimal string
*
* @param value Value to send as hex over the UART
* @param len Count of characters to produce
*/
void sendHex(unsigned long value, unsigned char len) {
char s[20];
s[len] = 0;
while (len--) {
unsigned char hex = value & 0x0f;
if (hex > 9) hex = hex - 10 + 'A';
else hex = hex + '0';
s[len] = hex;
value = value >> 4;
}
usb_putstr(s);
}