forked from xuos/xiuos
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
#include <xizi.h>
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#include <stdint.h>
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/* parameters for sram peripheral */
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// /* stm32f4 Bank3:0X68000000 */
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// #define SRAM_BANK_ADDR ((uint32_t)0X68000000)
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/* OK-1052 semc:0X80000000 */
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#define SRAM_BANK_ADDR ((uint32_t)0X80000000)
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/* data width: 8, 16, 32 */
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#define SRAM_DATA_WIDTH 16
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// /* sram size */
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// #define SRAM_SIZE ((uint32_t)0x00100000)
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/* sram size */
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#define SRAM_SIZE ((uint32_t)0x2000000)
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int sram_test(void)
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{
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int i = 0;
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uint32_t start_time = 0, time_cast = 0;
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#if SRAM_DATA_WIDTH == 8
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char data_width = 1;
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uint8_t data = 0;
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#elif SRAM_DATA_WIDTH == 16
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char data_width = 2;
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uint16_t data = 0;
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#else
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char data_width = 4;
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uint32_t data = 0;
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#endif
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/* write data */
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KPrintf("Writing the %ld bytes data, waiting....", SRAM_SIZE);
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start_time = CurrentTicksGain();
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for (i = 0; i < SRAM_SIZE / data_width; i++)
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{
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#if SRAM_DATA_WIDTH == 8
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*(volatile uint8_t *)(SRAM_BANK_ADDR + i * data_width) = (uint8_t)0x55;
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#elif SRAM_DATA_WIDTH == 16
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*(volatile uint16_t *)(SRAM_BANK_ADDR + i * data_width) = (uint16_t)0x5555;
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#else
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*(volatile uint32_t *)(SRAM_BANK_ADDR + i * data_width) = (uint32_t)0x55555555;
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#endif
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}
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time_cast = CurrentTicksGain() - start_time;
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KPrintf("Write data success, total time: %d.%03dS.\n", time_cast / TICK_PER_SECOND,
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time_cast % TICK_PER_SECOND / ((TICK_PER_SECOND * 1 + 999) / 1000));
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/* read data */
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KPrintf("start Reading and verifying data, waiting....\n");
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for (i = 0; i < SRAM_SIZE / data_width; i++)
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{
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#if SRAM_DATA_WIDTH == 8
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data = *(volatile uint8_t *)(SRAM_BANK_ADDR + i * data_width);
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if (data != 0x55)
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{
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KPrintf("SRAM test failed!");
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break;
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}
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#elif SRAM_DATA_WIDTH == 16
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data = *(volatile uint16_t *)(SRAM_BANK_ADDR + i * data_width);
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if (data != 0x5555)
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{
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KPrintf("SRAM test failed! data = 0x%x\n",data);
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break;
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}
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#else
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data = *(volatile uint32_t *)(SRAM_BANK_ADDR + i * data_width);
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if (data != 0x55555555)
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{
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KPrintf("SRAM test failed!");
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break;
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}
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#endif
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}
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if (i >= SRAM_SIZE / data_width)
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{
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KPrintf("SRAM test success!\n");
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}
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return 0;
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}
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SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0),sram_test, sram_test, sram_test );
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