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Code Issues Activity

NFC: fix MFC timings (#2719)

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* digital signal: add optimization
* nfc test: more restrict tests
* digital signal: build as separate library
* digital signal: remove unused flags, format sources
* digital signal: fix cflag name
* target: fix build for f18 target

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
gornekich
2023-06-01 16:37:47 +04:00
committed by GitHub
parent 3a7203e32e
commit 1d7966f74e
9 changed files with 98 additions and 16 deletions
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61
applications/debug/unit_tests/nfc/nfc_test.c
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@@ -27,6 +27,12 @@ static const uint32_t nfc_test_file_version = 1;
#define NFC_TEST_DATA_MAX_LEN 18
#define NFC_TETS_TIMINGS_MAX_LEN 1350
// Maximum allowed time for buffer preparation to fit 500us nt message timeout
#define NFC_TEST_4_BYTE_BUILD_BUFFER_TIM_MAX (150)
#define NFC_TEST_16_BYTE_BUILD_BUFFER_TIM_MAX (640)
#define NFC_TEST_4_BYTE_BUILD_SIGNAL_TIM_MAX (110)
#define NFC_TEST_16_BYTE_BUILD_SIGNAL_TIM_MAX (440)
typedef struct {
Storage* storage;
NfcaSignal* signal;
@@ -89,13 +95,13 @@ static bool nfc_test_read_signal_from_file(const char* file_name) {
static bool nfc_test_digital_signal_test_encode(
const char* file_name,
uint32_t encode_max_time,
uint32_t build_signal_max_time_us,
uint32_t build_buffer_max_time_us,
uint32_t timing_tolerance,
uint32_t timings_sum_tolerance) {
furi_assert(nfc_test);
bool success = false;
uint32_t time = 0;
uint32_t dut_timings_sum = 0;
uint32_t ref_timings_sum = 0;
uint8_t parity[10] = {};
@@ -109,17 +115,37 @@ static bool nfc_test_digital_signal_test_encode(
// Encode signal
FURI_CRITICAL_ENTER();
time = DWT->CYCCNT;
uint32_t time_start = DWT->CYCCNT;
nfca_signal_encode(
nfc_test->signal, nfc_test->test_data, nfc_test->test_data_len * 8, parity);
uint32_t time_signal =
(DWT->CYCCNT - time_start) / furi_hal_cortex_instructions_per_microsecond();
time_start = DWT->CYCCNT;
digital_signal_prepare_arr(nfc_test->signal->tx_signal);
time = (DWT->CYCCNT - time) / furi_hal_cortex_instructions_per_microsecond();
uint32_t time_buffer =
(DWT->CYCCNT - time_start) / furi_hal_cortex_instructions_per_microsecond();
FURI_CRITICAL_EXIT();
// Check timings
if(time > encode_max_time) {
if(time_signal > build_signal_max_time_us) {
FURI_LOG_E(
TAG, "Encoding time: %ld us while accepted value: %ld us", time, encode_max_time);
TAG,
"Build signal time: %ld us while accepted value: %ld us",
time_signal,
build_signal_max_time_us);
break;
}
if(time_buffer > build_buffer_max_time_us) {
FURI_LOG_E(
TAG,
"Build buffer time: %ld us while accepted value: %ld us",
time_buffer,
build_buffer_max_time_us);
break;
}
@@ -156,7 +182,16 @@ static bool nfc_test_digital_signal_test_encode(
break;
}
FURI_LOG_I(TAG, "Encoding time: %ld us. Acceptable time: %ld us", time, encode_max_time);
FURI_LOG_I(
TAG,
"Build signal time: %ld us. Acceptable time: %ld us",
time_signal,
build_signal_max_time_us);
FURI_LOG_I(
TAG,
"Build buffer time: %ld us. Acceptable time: %ld us",
time_buffer,
build_buffer_max_time_us);
FURI_LOG_I(
TAG,
"Timings sum difference: %ld [1/64MHZ]. Acceptable difference: %ld [1/64MHz]",
@@ -171,11 +206,19 @@ static bool nfc_test_digital_signal_test_encode(
MU_TEST(nfc_digital_signal_test) {
mu_assert(
nfc_test_digital_signal_test_encode(
NFC_TEST_RESOURCES_DIR NFC_TEST_SIGNAL_SHORT_FILE, 500, 1, 37),
NFC_TEST_RESOURCES_DIR NFC_TEST_SIGNAL_SHORT_FILE,
NFC_TEST_4_BYTE_BUILD_SIGNAL_TIM_MAX,
NFC_TEST_4_BYTE_BUILD_BUFFER_TIM_MAX,
1,
37),
"NFC short digital signal test failed\r\n");
mu_assert(
nfc_test_digital_signal_test_encode(
NFC_TEST_RESOURCES_DIR NFC_TEST_SIGNAL_LONG_FILE, 2000, 1, 37),
NFC_TEST_RESOURCES_DIR NFC_TEST_SIGNAL_LONG_FILE,
NFC_TEST_16_BYTE_BUILD_SIGNAL_TIM_MAX,
NFC_TEST_16_BYTE_BUILD_BUFFER_TIM_MAX,
1,
37),
"NFC long digital signal test failed\r\n");
}