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rf230bb updates: involves setting the 801.15.4 pending bit,

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0x800000 cpu clock, and a jtag reset bugfix
This commit is contained in:
David Kopf 2012-02-01 14:16:39 -07:00 • committed by Ivan Delamer
parent 57e686179c
commit 987906be97
3 changed files with 25 additions and 16 deletions
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32
cpu/avr/radio/rf230bb/rf230bb.c
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@ -594,6 +594,11 @@ set_txpower(uint8_t power)
hal_subregister_write(SR_TX_PWR, power);
}
}
void rf230_setpendingbit(uint8_t value)
{
hal_subregister_write(SR_AACK_SET_PD, value);
}
#if 0
/*----------------------------------------------------------------------------*/
/**
\brief Calibrate the internal RC oscillator
@ -609,7 +614,6 @@ set_txpower(uint8_t power)
void
calibrate_rc_osc_32k(void)
{
#if 0
/* Calibrate RC Oscillator: The calibration routine is done by clocking TIMER2
* from the external 32kHz crystal while running an internal timer simultaneously.
@ -699,31 +703,18 @@ calibrate_rc_osc_32k(void)
// PRR0 |= (1 << PRTIM2);/* |(1 << PRTIM1); */
AVR_LEAVE_CRITICAL_REGION();
#endif
}
#endif
/*---------------------------------------------------------------------------*/
int
rf230_init(void)
{
uint8_t i;
DEBUGFLOW('i');
/* A jtag or brownout reset of the mcu tristates the RF230 control pins while
* it is in operation, which can result in a mulfunctioning condition when the
* radio is later re-initialized.
* This manifests as an incorrectly computed hardware FCS checksum.
* Setting up the pins before the poweron time delay seems to fix this.
*/
#if 1 //this works after a brownout or jtag reset
/* Initialize Hardware Abstraction Layer */
hal_init();
/* Wait in case VCC just applied */
delay_us(TIME_TO_ENTER_P_ON);
#else //this gives FCS errors 5 out of 6 times
/* Wait in case VCC just applied */
delay_us(TIME_TO_ENTER_P_ON);
/* Initialize Hardware Abstraction Layer */
hal_init();
#endif
/* Calibrate oscillator */
// printf_P(PSTR("\nBefore calibration OSCCAL=%x\n"),OSCCAL);
@ -737,7 +728,18 @@ rf230_init(void)
/* Do full rf230 Reset */
hal_set_rst_low();
hal_set_slptr_low();
#if 1
/* On powerup a TIME_RESET delay is needed here, however on some other MCU reset
* (JTAG, WDT, Brownout) the radio may be sleeping. It can enter an uncertain
* state (sending wrong hardware FCS for example) unless the full wakeup delay
* is done.
* Wake time depends on board capacitance; use 2x the nominal delay for safety.
* See www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=78725
*/
delay_us(2*TIME_SLEEP_TO_TRX_OFF);
#else
delay_us(TIME_RESET);
#endif
hal_set_rst_high();
/* Force transition to TRX_OFF */