From 9278e9bafd96105b64f9946eb94f5618f01649d3 Mon Sep 17 00:00:00 2001
From: Paul Selkirk <paul@psgd.org>
Date: Thu, 29 Oct 2015 15:42:29 -0400
Subject: add libhal tests, some cleanup (some mess-making)

---
 fmc-test.c | 240 -------------------------------------------------------------
 1 file changed, 240 deletions(-)
 delete mode 100644 fmc-test.c

(limited to 'fmc-test.c')

diff --git a/fmc-test.c b/fmc-test.c
deleted file mode 100644
index 0e8ff39..0000000
--- a/fmc-test.c
+++ /dev/null
@@ -1,240 +0,0 @@
-//------------------------------------------------------------------------------
-// main.c
-//------------------------------------------------------------------------------
-
-
-//------------------------------------------------------------------------------
-// Headers
-//------------------------------------------------------------------------------
-#include "stm32f4xx_hal.h"
-#include "stm-init.h"
-#include "stm-led.h"
-#include "stm-fmc.h"
-#include "stm-uart.h"
-
-//------------------------------------------------------------------------------
-// Defines
-//------------------------------------------------------------------------------
-
-
-//------------------------------------------------------------------------------
-// Macros
-//------------------------------------------------------------------------------
-
-
-//------------------------------------------------------------------------------
-// Variables
-//------------------------------------------------------------------------------
-RNG_HandleTypeDef rng_inst;
-
-// FT: "I changed some interesting-to-look-at-in-the-debugger values to be
-// volatile, so that my compiler wouldn't optimize/obscure them."
-
-volatile uint32_t data_diff = 0;
-volatile uint32_t addr_diff = 0;
-
-
-//------------------------------------------------------------------------------
-// Prototypes
-//------------------------------------------------------------------------------
-/* XXX move this to stm-rng.[ch] */
-static void MX_RNG_Init(void);
-
-int test_fpga_data_bus(void);
-int test_fpga_address_bus(void);
-
-
-//------------------------------------------------------------------------------
-// Defines
-//------------------------------------------------------------------------------
-#define TEST_NUM_ROUNDS		100000
-
-
-//------------------------------------------------------------------------------
-int main(void)
-//------------------------------------------------------------------------------
-{
-  int i;
-  
-  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 (i = 0; i < 12; i++) {
-    HAL_Delay(500);
-    led_toggle(LED_BLUE);
-  }
-
-  // initialize rng
-  MX_RNG_Init();
-
-  // prepare fmc interface
-  fmc_init();
-
-  // turn on green led, turn off other leds
-  led_on(LED_GREEN);
-  led_off(LED_YELLOW);
-  led_off(LED_RED);
-  led_off(LED_BLUE);
-
-  // vars
-  volatile int data_test_ok = 0, addr_test_ok = 0, successful_runs = 0, failed_runs = 0, sleep = 0;
-
-  // main loop (test, until an error is detected)
-  while (1)
-    {
-      // test data bus
-      data_test_ok = test_fpga_data_bus();
-      // test address bus
-      addr_test_ok = test_fpga_address_bus();
-
-      uart_send_string("Data: ");
-      uart_send_integer(data_test_ok, 100000);
-      uart_send_string(", addr: ");
-      uart_send_integer(addr_test_ok, 100000);
-      uart_send_string("\r\n");
-
-      if (data_test_ok == TEST_NUM_ROUNDS &&
-	  addr_test_ok == TEST_NUM_ROUNDS) {
-	// toggle yellow led to indicate, that we are alive
-	led_toggle(LED_YELLOW);
-
-	successful_runs++;
-	sleep = 100;
-      } else {
-	led_on(LED_RED);
-	failed_runs++;
-	sleep = 2000;
-      }
-
-      uart_send_string("Success ");
-      uart_send_integer(successful_runs, 0);
-      uart_send_string(", fail ");
-      uart_send_integer(failed_runs, 0);
-      uart_send_string("\r\n\r\n");
-
-      HAL_Delay(sleep);
-    }
-
-  // should never reach this line
-}
-
-
-//------------------------------------------------------------------------------
-int test_fpga_data_bus(void)
-//------------------------------------------------------------------------------
-{
-  int c, ok;
-  uint32_t rnd, buf;
-  HAL_StatusTypeDef hal_result;
-
-  // run some rounds of data bus test
-  for (c=0; c<TEST_NUM_ROUNDS; c++)
-    {
-      data_diff = 0;
-      // try to generate "random" number
-      hal_result = HAL_RNG_GenerateRandomNumber(&rng_inst, &rnd);
-      if (hal_result != HAL_OK) break;
-
-      // write value to fpga at address 0
-      ok = fmc_write_32(0, &rnd);
-      if (ok != 0) break;
-
-      // read value from fpga
-      ok = fmc_read_32(0, &buf);
-      if (ok != 0) break;
-
-      // compare (abort testing in case of error)
-      if (buf != rnd)
-	{
-	  data_diff = buf;
-	  data_diff ^= rnd;
-
-	  uart_send_string("Data bus fail: expected ");
-	  uart_send_binary(rnd, 32);
-	  uart_send_string(", got ");
-	  uart_send_binary(buf, 32);
-	  uart_send_string(", diff ");
-	  uart_send_binary(data_diff, 32);
-	  uart_send_string("\r\n");
-
-	  break;
-	}
-    }
-
-  // return number of successful tests
-  return c;
-}
-
-
-//------------------------------------------------------------------------------
-int test_fpga_address_bus(void)
-//------------------------------------------------------------------------------
-{
-  int c, ok;
-  uint32_t rnd, buf;
-  HAL_StatusTypeDef hal_result;
-
-  // run some rounds of address bus test
-  for (c=0; c<TEST_NUM_ROUNDS; c++)
-    {
-      addr_diff = 0;
-      // try to generate "random" number
-      hal_result = HAL_RNG_GenerateRandomNumber(&rng_inst, &rnd);
-      if (hal_result != HAL_OK) break;
-
-      // we only have 2^22 32-bit words
-      //rnd &= 0x00FFFFFC;
-      rnd &= 0x0007FFFC;
-
-      // don't test zero addresses (fpga will store data, not address)
-      if (rnd == 0) continue;
-
-      // write dummy value to fpga at some non-zero address
-      ok = fmc_write_32(rnd, &buf);
-      if (ok != 0) break;
-
-      // read value from fpga
-      ok = fmc_read_32(0, &buf);
-      if (ok != 0) break;
-
-      // fpga receives address of 32-bit word, while we need
-      // byte address here to compare
-      buf <<= 2;
-
-      // compare (abort testing in case of error)
-      if (buf != rnd)
-	{
-	  addr_diff = buf;
-	  addr_diff ^= rnd;
-
-	  uart_send_string("Addr bus fail: expected ");
-	  uart_send_binary(rnd, 32);
-	  uart_send_string(", got ");
-	  uart_send_binary(buf, 32);
-	  uart_send_string(", diff ");
-	  uart_send_binary(addr_diff, 32);
-	  uart_send_string("\r\n");
-
-	  break;
-	}
-    }
-
-  return c;
-}
-
-
-//------------------------------------------------------------------------------
-static void MX_RNG_Init(void)
-//------------------------------------------------------------------------------
-{
-  rng_inst.Instance = RNG;
-  HAL_RNG_Init(&rng_inst);
-}
-
-
-//------------------------------------------------------------------------------
-// EOF
-//------------------------------------------------------------------------------
-- 
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