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			67 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			67 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /**
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|  * CRC Demo
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| */
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| #include "main.h"
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| #include "py32f0xx_bsp_clock.h"
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| #include "py32f0xx_bsp_printf.h"
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| 
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| #define BUFFER_SIZE    114
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| 
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| const uint32_t data[BUFFER_SIZE] =
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| {
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|   0x00001021, 0x20423063, 0x408450a5, 0x60c670e7, 0x9129a14a, 0xb16bc18c,
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|   0xd1ade1ce, 0xf1ef1231, 0x32732252, 0x52b54294, 0x72f762d6, 0x93398318,
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|   0xa35ad3bd, 0xc39cf3ff, 0xe3de2462, 0x34430420, 0x64e674c7, 0x44a45485,
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|   0xa56ab54b, 0x85289509, 0xf5cfc5ac, 0xd58d3653, 0x26721611, 0x063076d7,
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|   0x569546b4, 0xb75ba77a, 0x97198738, 0xf7dfe7fe, 0xc7bc48c4, 0x58e56886,
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|   0x78a70840, 0x18612802, 0xc9ccd9ed, 0xe98ef9af, 0x89489969, 0xa90ab92b,
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|   0x4ad47ab7, 0x6a961a71, 0x0a503a33, 0x2a12dbfd, 0xfbbfeb9e, 0x9b798b58,
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|   0xbb3bab1a, 0x6ca67c87, 0x5cc52c22, 0x3c030c60, 0x1c41edae, 0xfd8fcdec,
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|   0xad2abd0b, 0x8d689d49, 0x7e976eb6, 0x5ed54ef4, 0x2e321e51, 0x0e70ff9f,
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|   0xefbedfdd, 0xcffcbf1b, 0x9f598f78, 0x918881a9, 0xb1caa1eb, 0xd10cc12d,
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|   0xe16f1080, 0x00a130c2, 0x20e35004, 0x40257046, 0x83b99398, 0xa3fbb3da,
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|   0xc33dd31c, 0xe37ff35e, 0x129022f3, 0x32d24235, 0x52146277, 0x7256b5ea,
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|   0x95a88589, 0xf56ee54f, 0xd52cc50d, 0x34e224c3, 0x04817466, 0x64475424,
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|   0x4405a7db, 0xb7fa8799, 0xe75ff77e, 0xc71dd73c, 0x26d336f2, 0x069116b0,
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|   0x76764615, 0x5634d94c, 0xc96df90e, 0xe92f99c8, 0xb98aa9ab, 0x58444865,
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|   0x78066827, 0x18c008e1, 0x28a3cb7d, 0xdb5ceb3f, 0xfb1e8bf9, 0x9bd8abbb,
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|   0x4a755a54, 0x6a377a16, 0x0af11ad0, 0x2ab33a92, 0xed0fdd6c, 0xcd4dbdaa,
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|   0xad8b9de8, 0x8dc97c26, 0x5c644c45, 0x3ca22c83, 0x1ce00cc1, 0xef1fff3e,
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|   0xdf7caf9b, 0xbfba8fd9, 0x9ff86e17, 0x7e364e55, 0x2e933eb2, 0x0ed11ef0
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| };
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| const uint32_t expected = 0x379E9F06;
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| 
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| int main(void)
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| {
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|   uint32_t index, crc;
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|   // Set system clock to 48MHz
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|   BSP_RCC_HSI_PLL48MConfig();
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|   // Initialize UART on PA2:TX PA3:RX
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|   BSP_USART_Config(115200);
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|   printf("PY32F0 CRC Demo\r\nClock: %ld\r\n", SystemCoreClock);
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|   // Enable CRC clock
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|   LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_CRC);
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|   // Calculate CRC
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|   for (index = 0U; index < BUFFER_SIZE; index++)
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|   {
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|     LL_CRC_FeedData32(CRC, *(data + index));
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|   }
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|   crc = LL_CRC_ReadData32(CRC);
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| 
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|   printf("CRC: 0x%08lx, expected: 0x%08lx\r\n", crc, expected);
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| 
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|   while (1);
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| }
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| 
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| void APP_ErrorHandler(void)
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| {
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|   while (1);
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| }
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| 
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| #ifdef  USE_FULL_ASSERT
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| void assert_failed(uint8_t *file, uint32_t line)
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| {
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|   while (1);
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| }
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| #endif /* USE_FULL_ASSERT */
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