Sojus07/hackrf
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(max2871.c): Set the default values after reset

Browse Source
This commit is contained in:
Tobias Schneider
2015-06-07 13:58:46 +02:00
parent 9e6ae19e10
commit b4b768c76f
5 changed files with 143 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
firmware/common/hackrf_core.h
View File

@ -160,10 +160,10 @@ extern "C"
#define SCU_MIXER_RESETX (P5_5) /* GPIO2[14] on P5_5 */
#endif
#ifdef RAD10
#define SCU_MIXER_ENX (P5_4) /* GPIO2[13] on P5_4 */
#define SCU_MIXER_SCLK (P2_6) /* GPIO5[6] on P2_6 */
#define SCU_MIXER_SDATA (P6_4) /* GPIO3[3] on P6_4 */
#define SCU_MIXER_LE (P5_5) /* GPIO2[14] on P5_5 */
#define SCU_VCO_CE (P5_4) /* GPIO2[13] on P5_4 */
#define SCU_VCO_SCLK (P2_6) /* GPIO5[6] on P2_6 */
#define SCU_VCO_SDATA (P6_4) /* GPIO3[3] on P6_4 */
#define SCU_VCO_LE (P5_5) /* GPIO2[14] on P5_5 */
#define SCU_MIXER_EN (P6_8) /* GPIO5[16] on P6_8 */
#endif
@ -315,14 +315,14 @@ extern "C"
#define PORT_MIXER_RESETX (GPIO2)
#endif
#ifdef RAD10
#define PIN_MIXER_ENX (BIT13) /* GPIO2[13] on P5_4 */
#define PORT_MIXER_ENX (GPIO2)
#define PIN_MIXER_SCLK (BIT6) /* GPIO5[6] on P2_6 */
#define PORT_MIXER_SCLK (GPIO5)
#define PIN_MIXER_SDATA (BIT3) /* GPIO3[3] on P6_4 */
#define PORT_MIXER_SDATA (GPIO3)
#define PIN_MIXER_LE (BIT14) /* GPIO2[14] on P5_5 */
#define PORT_MIXER_LE (GPIO2)
#define PIN_VCO_CE (BIT13) /* GPIO2[13] on P5_4 */
#define PORT_VCO_CE (GPIO2)
#define PIN_VCO_SCLK (BIT6) /* GPIO5[6] on P2_6 */
#define PORT_VCO_SCLK (GPIO5)
#define PIN_VCO_SDATA (BIT3) /* GPIO3[3] on P6_4 */
#define PORT_VCO_SDATA (GPIO3)
#define PIN_VCO_LE (BIT14) /* GPIO2[14] on P5_5 */
#define PORT_VCO_LE (GPIO2)
#define PIN_MIXER_EN (BIT16) /* GPIO5[16] on P6_8 */
#define PORT_MIXER_EN (GPIO5)
#endif

128
firmware/common/max2871.c
View File

@ -1,5 +1,25 @@
#include <stdint.h>
#include "mixer.h"
//#include "max2871.h"
//#include "mac2871_regs.def" // private register def macros
#if (defined DEBUG)
#include <stdio.h>
#define LOG printf
#else
#define LOG(x,...)
#include <libopencm3/lpc43xx/ssp.h>
#include <libopencm3/lpc43xx/scu.h>
#include <libopencm3/lpc43xx/gpio.h>
#include "hackrf_core.h"
#endif
#include <stdint.h>
#include <string.h>
static void max2871_spi_write(uint8_t r, uint32_t v);
static void delay_ms(int ms);
static uint32_t registers[6];
/*
* - The input is fixed to 50 MHz
* f_REF = 50 MHz
@ -116,10 +136,110 @@
*
*/
void mixer_init(void)
{}
void mixer_setup(void)
{}
{
/* Configure GPIO pins. */
scu_pinmux(SCU_VCO_CE, SCU_GPIO_FAST);
//scu_pinmux(SCU_VCO_SCLK, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_VCO_SCLK, SCU_GPIO_FAST);
scu_pinmux(SCU_VCO_SDATA, SCU_GPIO_FAST);
scu_pinmux(SCU_VCO_LE, SCU_GPIO_FAST);
/* Set GPIO pins as outputs. */
GPIO_DIR(PORT_VCO_CE) |= PIN_VCO_CE;
GPIO_DIR(PORT_VCO_SCLK) |= PIN_VCO_SCLK;
GPIO_DIR(PORT_VCO_SDATA) |= PIN_VCO_SDATA;
GPIO_DIR(PORT_VCO_LE) |= PIN_VCO_LE;
/* set to known state */
gpio_set(PORT_VCO_CE, PIN_VCO_CE); /* active high */
gpio_clear(PORT_VCO_SCLK, PIN_VCO_SCLK);
gpio_clear(PORT_VCO_SDATA, PIN_VCO_SDATA);
gpio_set(PORT_VCO_LE, PIN_VCO_LE); /* active low */
registers[0] = 0x007D0000;
registers[1] = 0x2000FFF9;
registers[2] = 0x00004042;
registers[3] = 0x0000000B;
registers[4] = 0x6180B23C;
registers[5] = 0x00400005;
int i;
for(i = 5; i >= 0; i--) {
max2871_spi_write(i, registers[i]);
delay_ms(20);
}
}
static void delay_ms(int ms)
{
uint32_t i;
while(ms--) {
for (i = 0; i < 20000; i++) {
__asm__("nop");
}
}
}
static void serial_delay(void)
{
uint32_t i;
for (i = 0; i < 2; i++)
__asm__("nop");
}
/* SPI register write
*
* Send 32 bits:
* First 29 bits are data
* Last 3 bits are register number
*/
static void max2871_spi_write(uint8_t r, uint32_t v) {
#if DEBUG
LOG("0x%04x -> reg%d\n", v, r);
#else
uint32_t bits = 32;
uint32_t msb = 1 << (bits -1);
uint32_t data = v | r;
/* make sure everything is starting in the correct state */
gpio_set(PORT_VCO_LE, PIN_VCO_LE);
gpio_clear(PORT_VCO_SCLK, PIN_VCO_SCLK);
gpio_clear(PORT_VCO_SDATA, PIN_VCO_SDATA);
/* start transaction by bringing LE low */
gpio_clear(PORT_VCO_LE, PIN_VCO_LE);
while (bits--) {
if (data & msb)
gpio_set(PORT_VCO_SDATA, PIN_VCO_SDATA);
else
gpio_clear(PORT_VCO_SDATA, PIN_VCO_SDATA);
data <<= 1;
serial_delay();
gpio_set(PORT_VCO_SCLK, PIN_VCO_SCLK);
serial_delay();
gpio_clear(PORT_VCO_SCLK, PIN_VCO_SCLK);
}
gpio_set(PORT_VCO_LE, PIN_VCO_LE);
#endif
}
void max2871_write_registers(void)
{
int i;
for(i = 5; i >= 0; i--) {
max2871_spi_write(i, registers[i]);
}
}
/* Set frequency (MHz). */
uint64_t mixer_set_frequency(uint16_t mhz)

2
firmware/common/mixer.h
View File

@ -23,6 +23,8 @@
#ifndef __MIXER_H
#define __MIXER_H
#include <stdint.h>
/* Initialize chip. Call _setup() externally, as it calls _init(). */
extern void mixer_init(void);
extern void mixer_setup(void);

4
firmware/common/rf_path.c
View File

@ -99,9 +99,11 @@ static void switchctrl_set_rad10(uint8_t ctrl) {
if (ctrl & SWITCHCTRL_MIX_BYPASS) {
gpio_clear(PORT_BY_MIX, PIN_BY_MIX);
gpio_set(PORT_BY_MIX_N, PIN_BY_MIX_N);
gpio_clear(PORT_MIXER_EN, PIN_MIXER_EN);
} else {
gpio_set(PORT_BY_MIX, PIN_BY_MIX);
gpio_clear(PORT_BY_MIX_N, PIN_BY_MIX_N);
gpio_set(PORT_MIXER_EN, PIN_MIXER_EN);
}
if (ctrl & SWITCHCTRL_HP) {
@ -301,6 +303,7 @@ void rf_path_pin_setup() {
scu_pinmux(SCU_LOW_HIGH_FILT_N,SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_RX_LNA, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_MIXER_EN, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
/* Configure RF power supply (VAA) switch */
scu_pinmux(SCU_VAA_ENABLE, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
@ -310,6 +313,7 @@ void rf_path_pin_setup() {
GPIO1_DIR |= PIN_BY_AMP | PIN_TX_RX_N | PIN_BY_MIX;
GPIO2_DIR |= PIN_BY_MIX_N | PIN_LOW_HIGH_FILT | PIN_LOW_HIGH_FILT_N | PIN_TX_AMP;
GPIO5_DIR |= PIN_BY_AMP_N | PIN_RX_LNA;
GPIO_DIR(PORT_MIXER_EN) |= PIN_MIXER_EN;
/*
* Safe (initial) switch settings turn off both amplifiers and antenna port

2
firmware/hackrf_usb/hackrf_usb.c
View File

@ -219,7 +219,7 @@ void usb_set_descriptor_by_serial_number(void)
int main(void) {
pin_setup();
enable_1v8_power();
#ifdef HACKRF_ONE
#if (defined HACKRF_ONE || defined RAD10)
enable_rf_power();
#endif
cpu_clock_init();