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-rw-r--r--self-test/fmc-perf.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/self-test/fmc-perf.c b/self-test/fmc-perf.c
deleted file mode 100644
index 0c753a7..0000000
--- a/self-test/fmc-perf.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Test read/write performance of the fmc bus
- */
-#include "stm32f4xx_hal.h"
-#include "stm-init.h"
-#include "stm-led.h"
-#include "stm-fmc.h"
-#include "stm-uart.h"
-
-#define TEST_NUM_ROUNDS 2000000
-
-RNG_HandleTypeDef rng_inst;
-
-static void MX_RNG_Init(void)
-{
- rng_inst.Instance = RNG;
- HAL_RNG_Init(&rng_inst);
-}
-
-static uint32_t random(void)
-{
- uint32_t rnd;
- if (HAL_RNG_GenerateRandomNumber(&rng_inst, &rnd) != HAL_OK) {
- uart_send_string("HAL_RNG_GenerateRandomNumber failed\r\n");
- Error_Handler();
- }
- return rnd;
-}
-
-static void sanity(void)
-{
- uint32_t rnd, data;
-
- rnd = random();
- if (fmc_write_32(0, &rnd) != 0) {
- uart_send_string("fmc_write_32 failed\r\n");
- Error_Handler();
- }
- if (fmc_read_32(0, &data) != 0) {
- uart_send_string("fmc_read_32 failed\r\n");
- Error_Handler();
- }
- if (data != rnd) {
- uart_send_string("Data bus fail: expected ");
- uart_send_hex(rnd, 8);
- uart_send_string(", got ");
- uart_send_hex(data, 8);
- uart_send_string(", diff ");
- uart_send_hex(data ^ rnd, 8);
- uart_send_string("\r\n");
- Error_Handler();
- }
-}
-
-static void _time_check(char *label, const uint32_t t0)
-{
- uint32_t t = HAL_GetTick() - t0;
-
- uart_send_string(label);
- uart_send_integer(t / 1000, 0);
- uart_send_char('.');
- uart_send_integer(t % 1000, 3);
- uart_send_string(" seconds, ");
- uart_send_integer(((1000 * TEST_NUM_ROUNDS) / t), 0);
- uart_send_string("/sec\r\n");
-}
-
-#define time_check(_label_, _expr_) \
- do { \
- uint32_t _t = HAL_GetTick(); \
- (_expr_); \
- _time_check(_label_, _t); \
- } while (0)
-
-static void test_read(void)
-{
- uint32_t i, data;
-
- for (i = 0; i < TEST_NUM_ROUNDS; ++i) {
- if (fmc_read_32(0, &data) != 0) {
- uart_send_string("fmc_read_32 failed\r\n");
- Error_Handler();
- }
- }
-}
-
-static void test_write(void)
-{
- uint32_t i;
-
- for (i = 0; i < TEST_NUM_ROUNDS; ++i) {
- if (fmc_write_32(0, &i) != 0) {
- uart_send_string("fmc_write_32 failed\r\n");
- Error_Handler();
- }
- }
-}
-
-int main(void)
-{
- stm_init();
-
- uart_send_string("Keep calm for Novena boot...\r\n");
-
- // Blink blue LED for six seconds to not upset the Novena at boot.
- led_on(LED_BLUE);
- for (int i = 0; i < 12; i++) {
- HAL_Delay(500);
- led_toggle(LED_BLUE);
- }
- led_off(LED_BLUE);
-
- // initialize rng
- MX_RNG_Init();
-
- // prepare fmc interface
- fmc_init();
-
- sanity();
-
- time_check("read ", test_read());
- time_check("write ", test_write());
-
- uart_send_string("Done.\r\n\r\n");
- return 0;
-}