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Basic support for flashing UF2 files

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This commit is contained in:
Michal Moskal 2017-01-04 15:34:39 +00:00
parent 001357098d
commit 8cb86fe217
1 changed files with 27 additions and 7 deletions
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34
uf2tool/tool.c
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@ -134,7 +134,7 @@ void talk_hid(HID_Dev *pkt, int cmd, const void *data, uint32_t len) {
fatal("invalid status");
}
uint8_t flashbuf[256 * 1024];
uint8_t flashbuf[2 * 1024 * 1024];
unsigned short add_crc(char ptr, unsigned short crc) {
unsigned short cmpt;
@ -210,7 +210,7 @@ int main(int argc, char *argv[]) {
printf(" list - list devices\n");
printf(" dmesg - dump internal runtime logs from the device\n");
printf(" info - dump information about the device\n");
printf(" write BIN_FILE - write specified bin file\n");
printf(" write FILE - write specified BIN or UF2 file\n");
printf(" random - write randomly generated bin file\n");
return 1;
}
@ -277,6 +277,7 @@ int main(int argc, char *argv[]) {
int i;
size_t filesize;
int isUF2 = 0;
if (strcmp(filename, "random") == 0) {
srand(millis());
@ -294,17 +295,35 @@ int main(int argc, char *argv[]) {
len = fread(flashbuf + filesize, 1, sizeof(flashbuf) - filesize, f);
filesize += len;
}
filesize = (filesize + (cmd.pageSize - 1)) / cmd.pageSize * cmd.pageSize;
if (strncmp((const char *)flashbuf, "UF2\nWQ]\x9E", 8) == 0) {
printf("detected UF2 file\n");
if (cmd.pageSize != 256)
fatal("wrong page size");
isUF2 = 1;
} else {
filesize = (filesize + (cmd.pageSize - 1)) / cmd.pageSize * cmd.pageSize;
}
printf("read %ld bytes from %s\n", filesize, filename);
fclose(f);
}
uint64_t start = millis();
uint32_t addr = 0x2000;
uint32_t blockSize = cmd.pageSize;
for (i = 0; i < filesize; i += cmd.pageSize) {
write32(cmd.buf + 8, i + 0x2000);
memcpy(cmd.buf + 12, flashbuf + i, cmd.pageSize);
if (isUF2)
blockSize = 512;
for (i = 0; i < filesize; i += blockSize) {
if (isUF2) {
addr = read32(flashbuf + i + 12);
memcpy(cmd.buf + 12, flashbuf + i + 32, cmd.pageSize);
} else {
memcpy(cmd.buf + 12, flashbuf + i, cmd.pageSize);
}
write32(cmd.buf + 8, addr);
talk_hid(&cmd, HF2_CMD_WRITE_FLASH_PAGE, 0, cmd.pageSize + 4);
addr += cmd.pageSize;
}
printf("time: %d\n", (int)(millis() - start));
@ -321,7 +340,8 @@ int main(int argc, char *argv[]) {
}
}
#else
verify(&cmd, flashbuf, filesize, 0x2000);
if (!isUF2)
verify(&cmd, flashbuf, filesize, 0x2000);
#endif
printf("verify time: %d\n", (int)(millis() - start));