73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
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typedef unsigned int uint32_t;
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typedef unsigned char uint8_t;
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typedef void (*rom_t)(unsigned char fboot);
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int main(int argc, char *argv[])
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{
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(void)argv;
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uint32_t timer_start;
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uint32_t cur_pc = (uint32_t)argc;
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rom_t rom = (rom_t)0x20000;
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uint8_t *uart_fifo = (uint8_t*)0x44001000;
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uint32_t *gtmr_reg = (uint32_t *)0x40020000;
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char flag = '3';
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/* kl1 0x00fc1000, kl2 0x0ffd9000, kl3 0x10000800*/
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if (0 == cur_pc >> 24) {
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rom = (rom_t)0x30000;
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uart_fifo = (uint8_t*)0x44001000;
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gtmr_reg = (uint32_t*)0x44003000;
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flag = '1';
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/* apb enable */
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*((uint32_t*)0x44000004) |= 0x1 << 2;
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gtmr_reg[2] = 0xffffffff;
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gtmr_reg[1] |= 0x1 << 4;
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gtmr_reg[1] |= 0x1 << 1;
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} else if (0xf == cur_pc >> 24) {
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rom = (rom_t)0x30000;
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uart_fifo = (uint8_t*)0x44001000;
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gtmr_reg = (uint32_t*)0x44003000;
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flag = '2';
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gtmr_reg[2] = 0xffffffff;
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gtmr_reg[1] |= 0x1 << 4;
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gtmr_reg[1] |= 0x1 << 1;
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} else if (0x10 == cur_pc >> 24) {
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rom = (rom_t)0x20000;
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uart_fifo = (uint8_t*)0x40010000;
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gtmr_reg = (uint32_t*)0x40020000;
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flag = '3';
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} else {
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/* 无法判断时，默认kl3 */
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rom = (rom_t)0x20000;
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uart_fifo = (uint8_t*)0x40010000;
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gtmr_reg = (uint32_t*)0x40020000;
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flag = '3';
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}
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timer_start = gtmr_reg[4];
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while(1000 * 1000 > gtmr_reg[4] - timer_start);
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/* 串口发送数据 */
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uart_fifo[0] = '\r';
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uart_fifo[0] = '\n';
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uart_fifo[0] = 'K';
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uart_fifo[0] = 'L';
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uart_fifo[0] = flag;
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/* version */
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uart_fifo[0] = '-';
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uart_fifo[0] = 'V';
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uart_fifo[0] = '1';
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uart_fifo[0] = '.';
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uart_fifo[0] = '0';
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/* 等待串口发送完成 */
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timer_start = gtmr_reg[4];
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while(1000 * 1000 > gtmr_reg[4] - timer_start);
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rom(0);
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}
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