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got simpletx working but note comment in max2837.c about one weird register

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This commit is contained in:
Michael Ossmann
2012-06-11 22:53:06 -06:00
parent d876ae7e86
commit a47e3fd57d
2 changed files with 18 additions and 5 deletions
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21
firmware/common/max2837.c
View File

@ -67,7 +67,9 @@ void max2837_init(void)
{
LOG("# max2837_init\n");
memcpy(max2837_regs, max2837_regs_default, sizeof(max2837_regs));
max2837_regs_dirty = 0xffffffff;
//max2837_regs_dirty = 0xffffffff;
//FIXME: not sure why, but one register breaks simpletx:
max2837_regs_dirty = 0xffdfffff;
/* Write default register values to chip. */
max2837_regs_commit();
@ -79,6 +81,8 @@ void max2837_init(void)
*/
void max2837_setup(void)
{
LOG("# max2837_setup\n");
#if !defined TEST
/* FIXME speed up once everything is working reliably */
const uint8_t serial_clock_rate = 32;
const uint8_t clock_prescale_rate = 128;
@ -118,13 +122,16 @@ void max2837_setup(void)
SSP_MODE_NORMAL,
SSP_MASTER,
SSP_SLAVE_OUT_ENABLE);
#endif
max2837_init();
LOG("# max2837_init done\n");
/* Use SPI control instead of B1-B7 pins for gain settings. */
set_MAX2837_TXVGA_GAIN_SPI_EN(1);
set_MAX2837_TXVGA_GAIN_MSB_SPI_EN(1);
set_MAX2837_TXVGA_GAIN(0x3f); /* maximum attenuation */
//set_MAX2837_TXVGA_GAIN(0x3f); /* maximum attenuation */
set_MAX2837_TXVGA_GAIN(0x00); /* minimum attenuation */
set_MAX2837_LNAgain_SPI_EN(1);
set_MAX2837_LNAgain(MAX2837_LNAgain_MAX); /* maximum gain */
set_MAX2837_VGAgain_SPI_EN(1);
@ -192,13 +199,17 @@ void max2837_start(void)
LOG("# max2837_start\n");
set_MAX2837_EN_SPI(1);
max2837_regs_commit();
#if !defined TEST
gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_ENABLE);
#endif
}
void max2837_tx(void)
{
LOG("# max2837_tx\n");
#if !defined TEST
gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_TXENABLE);
#endif
}
void max2837_stop(void)
@ -206,8 +217,10 @@ void max2837_stop(void)
LOG("# max2837_stop\n");
set_MAX2837_EN_SPI(0);
max2837_regs_commit();
#if !defined TEST
gpio_clear(PORT_XCVR_ENABLE,
(PIN_XCVR_ENABLE | PIN_XCVR_RXENABLE | PIN_XCVR_TXENABLE));
#endif
}
void max2837_set_frequency(uint32_t freq)
@ -275,10 +288,10 @@ void max2837_set_frequency(uint32_t freq)
#ifdef TEST
int main(int ac, char **av)
{
max2837_init();
max2837_setup();
max2837_set_frequency(2441000000);
max2837_start();
max2837_tx();
max2837_set_frequency(2441000000);
max2837_stop();
}
#endif //TEST

2
firmware/simpletx/simpletx.c
View File

@ -66,8 +66,8 @@ int main(void)
max2837_setup();
gpio_set(PORT_LED1_3, (PIN_LED2)); /* LED2 on */
max2837_set_frequency(freq);
max2837_tx();
max2837_start();
max2837_tx();
gpio_set(PORT_LED1_3, (PIN_LED3)); /* LED3 on */
while (1);
max2837_stop();