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fsparser: fix checksum for gw1n with ram

This commit is contained in:
Gwenhael Goavec-Merou 2020-09-29 08:07:57 +02:00
parent 5d99237652
commit 7b048d2d82
1 changed files with 50 additions and 3 deletions
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53
src/fsparser.cpp
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@ -102,9 +102,14 @@ int FsParser::parse()
* if true 0 -> 0, 1 -> 1
*/
uint32_t idcode = 0;
for (auto &&line: vectTmp) {
/* store bit for checksum */
if ((int)line.size() == max)
tmp += line.substr(padding, addr_length);
/* store header for futher informations */
string data_line;
for (int i = 0; i < (int)line.size(); i+=8) {
data = 0;
for (int ii = 0; ii < 8; ii++) {
@ -115,13 +120,55 @@ int FsParser::parse()
data |= val << (7-ii);
}
_bit_data += data;
data_line += (_reverseByte)? reverseByte(data): data;
}
if (line.size() < max) {
if (data_line[0] == 0x06) {
string str = data_line.substr(data_line.size()-4, 4);
for (auto it = str.begin(); it != str.end(); it++)
idcode = idcode << 8 | (uint8_t)(*it);
}
}
}
_bit_length = (int)_bit_data.size() * 8;
printf("%02x\n", _checksum);
uint32_t sum = 0;
for (int pos = 0; pos < (int)tmp.size(); pos+=16) {
if (idcode == 0)
printf("IDCODE not found\n");
/* use idcode to determine Count of Address */
unsigned nb_line = 0;
switch (idcode) {
case 0x0900281b: /* GW1N-1 */
case 0x0900381b: /* GW1N-1S */
case 0x0100681b: /* GW1NZ-1 */
nb_line = 274;
break;
case 0x0100181b: /* GW1N-2 */
case 0x1100181b: /* GW1N-2B */
case 0x0300081b: /* GW1NS-2 */
case 0x0300181b: /* GW1NSx-2C */
case 0x1100381b: /* GW1N-4B */
nb_line = 494;
break;
case 0x0100481b: /* GW1N-6 */
case 0x1100581b: /* GW1N-9 */
nb_line = 712;
break;
case 0x0000081b: /* GW2A-18 */
nb_line = 1342;
break;
case 0x0000281b: /* GW2A-55 */
nb_line = 2038;
break;
}
printf("%02x\n", _checksum);
/* checksum */
uint32_t sum = 0;
uint32_t max_pos = (idcode == 0) ? tmp.size() : addr_length * nb_line;
for (int pos = 0; pos < max_pos; pos+=16) {
int16_t data16 = 0;
for (int offset = 0; offset < 16; offset ++) {
uint16_t val = (tmp[pos+offset] == '1'?1:0);