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Bugfix: Fix compile error for ESP32 FSM ULP GPIO Example (IDFGH-9687) #11028

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Bugfix: Fix compile error for ESP32 FSM ULP GPIO Example (IDFGH-9687) #11028

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3eafff3
Change namespace variable to nvs_namespace to prevent expected unqual…
Kampi Mar 20, 2023
90849db
Undo wrong bugfix with type casting
Kampi Mar 22, 2023
0f93e52
Change namespace variable to nvs_namespace to prevent expected unqual…
Kampi Mar 20, 2023
c96429e
Merge branch 'v5.0_Bugfix_ULP_FSM_GPIO_Example' of github.com:Kampi/e…
Kampi Mar 22, 2023
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10 changes: 5 additions & 5 deletions examples/system/ulp_fsm/ulp/main/ulp_example_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -98,27 +98,27 @@ static void init_ulp_program(void)

static void update_pulse_count(void)
{
const char* namespace = "plusecnt";
const char* nvs_namespace = "plusecnt";
const char* count_key = "count";

ESP_ERROR_CHECK( nvs_flash_init() );
nvs_handle_t handle;
ESP_ERROR_CHECK( nvs_open(namespace, NVS_READWRITE, &handle));
ESP_ERROR_CHECK( nvs_open(nvs_namespace, NVS_READWRITE, &handle));
uint32_t pulse_count = 0;
esp_err_t err = nvs_get_u32(handle, count_key, &pulse_count);
assert(err == ESP_OK || err == ESP_ERR_NVS_NOT_FOUND);
printf("Read pulse count from NVS: %5"PRIu32"\n", pulse_count);
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@Kampi What is the reason for this change? The formatting macros have been introduced to fix warnings after switching between compilers for different platforms (e.g. Xtensa-gcc to RISCV-gcc). If it is because of the C++ compiler warning about invalid suffix on literal, please add the suggested change instead of changing the macro back to a hard-coded formatter.

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Hi @0xjakob,

thanks for your suggestion. Your argument makes sense to me and I guess I had an error in my setup because I forgot (or accidentally removed) #include <inttypes.h>, which leads to a compilation error. I have modified the pull request and reverted this change.

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@Kampi OK, thanks for the fix! Would you mind squashing the commits into one? Then we wouldn't have an intermediate commit that could potentially break builds on machines where the print formatters are different.

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Hi @0xjakob,
not sure if this was successful, because I´ve never done this before. Please check it. Otherwise I can create a new merge request.

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@Kampi OK, let's leave it as it is then. We will amend the commits to squash them. The only difference is that the PR will be seen as closed instead of merged. The rest stays the same. In particular, your authorship of the commit in IDF will be retained.

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Hi @0xjakob
It's fine. Thanks!

printf("Read pulse count from NVS: %5d\n", (unsigned int)pulse_count);

/* ULP program counts signal edges, convert that to the number of pulses */
uint32_t pulse_count_from_ulp = (ulp_edge_count & UINT16_MAX) / 2;
/* In case of an odd number of edges, keep one until next time */
ulp_edge_count = ulp_edge_count % 2;
printf("Pulse count from ULP: %5"PRIu32"\n", pulse_count_from_ulp);
printf("Pulse count from ULP: %5d\n", (unsigned int)pulse_count_from_ulp);

/* Save the new pulse count to NVS */
pulse_count += pulse_count_from_ulp;
ESP_ERROR_CHECK(nvs_set_u32(handle, count_key, pulse_count));
ESP_ERROR_CHECK(nvs_commit(handle));
nvs_close(handle);
printf("Wrote updated pulse count to NVS: %5"PRIu32"\n", pulse_count);
printf("Wrote updated pulse count to NVS: %5d\n", (unsigned int)pulse_count);
}