diff options
author | Paul Selkirk <paul@psgd.org> | 2016-04-11 14:44:44 -0400 |
---|---|---|
committer | Paul Selkirk <paul@psgd.org> | 2016-04-11 14:44:44 -0400 |
commit | 79b1ba7104dba52dbfacf11a07305702889f440b (patch) | |
tree | 75a08fdc6e3af427e953f319b3fdb0f9dcfdf80e /self-test/fmc-test.c | |
parent | d5669dac8c7ab2fbf6bd3c7faed7ce050c94ee1a (diff) |
Reorganize Makefile and directory structure, because it's messy, and it's about to get messier.
Diffstat (limited to 'self-test/fmc-test.c')
-rw-r--r-- | self-test/fmc-test.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/self-test/fmc-test.c b/self-test/fmc-test.c deleted file mode 100644 index cf17087..0000000 --- a/self-test/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, 6); - uart_send_string(", addr: "); - uart_send_integer(addr_test_ok, 6); - 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 -//------------------------------------------------------------------------------ |