#define GPIO_FUNC_SEL0 0x80000018 /* GPIO 15 - 0; 2 bit blocks */ #define BASE_UART1 0x80005000 #define UART1_CON 0x80005000 #define UART1_STAT 0x80005004 #define UART1_DATA 0x80005008 #define UR1CON 0x8000500c #define UT1CON 0x80005010 #define UART1_CTS 0x80005014 #define UART1_BR 0x80005018 #define GPIO_PAD_DIR0 0x80000000 #define GPIO_DATA0 0x80000008 #include "maca.h" #include "embedded_types.h" #define reg(x) (*(volatile uint32_t *)(x)) #define DELAY 400000 #define DATA 0x00401000; #define NL "\033[K\r\n" void putc(uint8_t c); void puts(uint8_t *s); void put_hex(uint8_t x); void put_hex16(uint16_t x); void put_hex32(uint32_t x); const uint8_t hex[16]={'0','1','2','3','4','5','6','7', '8','9','a','b','c','d','e','f'}; uint32_t ackBox[10]; #define MAX_PAYLOAD 128 volatile uint8_t data[MAX_PAYLOAD]; /* maca_rxlen is very important */ #define command_xcvr_rx() \ do { \ maca_txlen = ((0xff)<<16); \ maca_dmatx = (uint32_t)&ackBox; \ maca_dmarx = data; \ maca_tmren = (maca_cpl_clk | maca_soft_clk); \ maca_control = (control_prm | control_asap | control_seq_rx); \ }while(FALSE) void dump_regs(uint32_t base, uint32_t len) { volatile uint32_t i; puts("base +0 +4 +8 +c +10 +14 +18 +1c \n\r"); for (i = 0; i < len; i ++) { if ((i & 7) == 0) { put_hex16(4 * i); } puts(" "); put_hex32(reg(base+(4*i))); if ((i & 7) == 7) puts(NL); } puts(NL); } volatile uint8_t led; #define led_on() do { led = 1; reg(GPIO_DATA0) = 0x00000200; } while(0); #define led_off() do { led = 0; reg(GPIO_DATA0) = 0x00000000; } while(0); void toggle_led(void) { if(0 == led) { led_on(); led = 1; } else { led_off(); } } #include "isr.h" no_isrs(); __attribute__ ((section ("startup"))) void main(void) { uint8_t c; volatile uint32_t i; uint32_t tmp; uint16_t status; *(volatile uint32_t *)GPIO_PAD_DIR0 = 0x00000200; led_on(); /* Restore UART regs. to default */ /* in case there is still bootloader state leftover */ reg(UART1_CON) = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */ /* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */ #define INC 767 #define MOD 9999 reg(UART1_BR) = INC<<16 | MOD; /* see Section 11.5.1.2 Alternate Modes */ /* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */ /* From the datasheet: "The peripheral function will control operation of the pad IF */ /* THE PERIPHERAL IS ENABLED. */ reg(UART1_CON) = 0x00000003; /* enable receive and transmit */ reg(GPIO_FUNC_SEL0) = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/ reset_maca(); radio_init(); flyback_init(); vreg_init(); init_phy(); set_power(0x0f); /* 0dbm */ set_channel(0); /* channel 11 */ reg(MACA_CONTROL) = SMAC_MACA_CNTL_INIT_STATE; for(i=0; i> 4]); putc(hex[x & 15]); } void put_hex16(uint16_t x) { put_hex((x >> 8) & 0xFF); put_hex((x) & 0xFF); } void put_hex32(uint32_t x) { put_hex((x >> 24) & 0xFF); put_hex((x >> 16) & 0xFF); put_hex((x >> 8) & 0xFF); put_hex((x) & 0xFF); }