I tried a simple example but I can't open a file. Is there a volume name that I need to specify? I presume you don't need to create a directory.
Here is the code, but the open fails with "No such file or directory"
// TEST File System char *test_string = "This is data"; int32_t fp; printf("FS Test: Writing:\n"); fp = red_open("/test_file", RED_O_CREAT | RED_O_WRONLY); if (fp != -1) { printf("Writing string\n"); int32_t numOfBytesWritten = red_write(fp, test_string, strlen(test_string)); if (numOfBytesWritten == strlen(test_string)) { printf("Success\n"); } else { printf("Write returned: %d\n",numOfBytesWritten); if (numOfBytesWritten == -1) printf("Unable to write to file: %s\n", red_strerror(red_errno)); } int32_t rc = red_close(fp); if (rc != 0) { printf("Unable to close file: %s\n", red_strerror(red_errno)); }
} else { printf("Unable to open file: %s\n", red_strerror(red_errno)); }
Any thoughts?
73 Chris
On Fri, Apr 7, 2023 at 5:10 PM Burns Fisher (AMSAT) via pacsat-dev < [email protected]> wrote:
I assumed that since this was ARM it was little endian.
Yeah, I would have too. But apparently ARM can go either way. Turns out that for some reason the automotive world seems to standardize on big endian. This has caused nothing but hassle on the TMS570 (the STM32L is little).
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On Sat, Apr 08, 2023 at 02:19:29PM -0400, Chris Thompson wrote:
I tried a simple example but I can't open a file. Is there a volume name that I need to specify? I presume you don't need to create a directory.
"/" should be the volume name, but maybe you need two of them? I wasn't sure from what the documentation said.
If you can open "//test_file", then that's what it is.
-corey
Here is the code, but the open fails with "No such file or directory"
// TEST File System char *test_string = "This is data"; int32_t fp; printf("FS Test: Writing:\n"); fp = red_open("/test_file", RED_O_CREAT | RED_O_WRONLY); if (fp != -1) { printf("Writing string\n"); int32_t numOfBytesWritten = red_write(fp, test_string, strlen(test_string)); if (numOfBytesWritten == strlen(test_string)) { printf("Success\n"); } else { printf("Write returned: %d\n",numOfBytesWritten); if (numOfBytesWritten == -1) printf("Unable to write to file: %s\n", red_strerror(red_errno)); } int32_t rc = red_close(fp); if (rc != 0) { printf("Unable to close file: %s\n", red_strerror(red_errno)); }
} else { printf("Unable to open file: %s\n", red_strerror(red_errno)); }Any thoughts?
73 Chris
On Fri, Apr 7, 2023 at 5:10 PM Burns Fisher (AMSAT) via pacsat-dev < [email protected]> wrote:
I assumed that since this was ARM it was little endian.
Yeah, I would have too. But apparently ARM can go either way. Turns out that for some reason the automotive world seems to standardize on big endian. This has caused nothing but hassle on the TMS570 (the STM32L is little).
pacsat-dev mailing list -- [email protected] View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to [email protected] Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
-- Chris E. Thompson [email protected] [email protected]
Chris, I assume that you did add the "initMRAM" near boot (right after the SPI init). If not, you may have to do format the file system after doing it because it may have the size and the partition setup wrong otherwise.
73,
Burns Fisher, WB1FJ *AMSAT(R) Engineering -- Flight Software*
On Sat, Apr 8, 2023 at 2:39 PM Corey Minyard [email protected] wrote:
On Sat, Apr 08, 2023 at 02:19:29PM -0400, Chris Thompson wrote:
I tried a simple example but I can't open a file. Is there a volume name that I need to specify? I presume you don't need to create a directory.
"/" should be the volume name, but maybe you need two of them? I wasn't sure from what the documentation said.
If you can open "//test_file", then that's what it is.
-corey
Here is the code, but the open fails with "No such file or directory"
// TEST File System char *test_string = "This is data"; int32_t fp; printf("FS Test: Writing:\n"); fp = red_open("/test_file", RED_O_CREAT | RED_O_WRONLY); if (fp != -1) { printf("Writing string\n"); int32_t numOfBytesWritten = red_write(fp, test_string, strlen(test_string)); if (numOfBytesWritten == strlen(test_string)) { printf("Success\n"); } else { printf("Write returned: %d\n",numOfBytesWritten); if (numOfBytesWritten == -1) printf("Unable to write to file: %s\n", red_strerror(red_errno)); } int32_t rc = red_close(fp); if (rc != 0) { printf("Unable to close file: %s\n",
red_strerror(red_errno));
} } else { printf("Unable to open file: %s\n", red_strerror(red_errno)); }Any thoughts?
73 Chris
On Fri, Apr 7, 2023 at 5:10 PM Burns Fisher (AMSAT) via pacsat-dev < [email protected]> wrote:
I assumed that since this was ARM it was little endian.
Yeah, I would have too. But apparently ARM can go either way. Turns
out
that for some reason the automotive world seems to standardize on big endian. This has caused nothing but hassle on the TMS570 (the STM32L
is
little).
pacsat-dev mailing list -- [email protected] View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to [email protected] Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
-- Chris E. Thompson [email protected] [email protected]
participants (3)
-
Burns Fisher (AMSAT) -
Chris Thompson -
Corey Minyard