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64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
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* Copyright (c) 2006-2020, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-07-12 RealThread the first version
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <board.h>
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static void rtthread_startup(void)
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{
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extern int main(void);
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extern int $Super$$main(void);
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extern void clk_init(char *clk_source, int source_freq, int target_freq);
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extern int uart_init();
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clk_init(BSP_CLOCK_SOURCE, BSP_CLOCK_SOURCE_FREQ_MHZ, BSP_CLOCK_SYSTEM_FREQ_MHZ);
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uart_init();
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setbuf(stdout, NULL);
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/* invoke system main function */
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#if defined(__CC_ARM) || defined(__CLANG_ARM)
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$Super$$main(); /* for ARMCC. */
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#elif defined(__ICCARM__) || defined(__GNUC__)
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main();
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#endif
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while(1);
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}
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#if defined(__CC_ARM) || defined(__CLANG_ARM)
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extern int $Super$$main(void);
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/* re-define main function */
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int $Sub$$main(void)
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{
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rtthread_startup();
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return 0;
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}
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#elif defined(__ICCARM__)
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extern int main(void);
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/* __low_level_init will auto called by IAR cstartup */
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extern void __iar_data_init3(void);
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int __low_level_init(void)
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{
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// call IAR table copy function.
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__iar_data_init3();
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rtthread_startup();
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return 0;
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}
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#elif defined(__GNUC__)
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/* Add -eentry to arm-none-eabi-gcc argument */
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int entry(void)
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{
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rtthread_startup();
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return 0;
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}
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#endif
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