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Better fix for hardware FCS error on JTAG reset

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Correct silly error introduced by trying to save two bytes.
This commit is contained in:
David Kopf 2011-11-15 13:24:58 -05:00
parent 63e40d195e
commit fb977cb9ef
3 changed files with 27 additions and 23 deletions
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19
cpu/avr/radio/rf230bb/rf230bb.c
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@ -721,18 +721,29 @@ 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);
// calibrate_rc_osc_32k();
// printf_P(PSTR("After calibration OSCCAL=%x\n"),OSCCAL);
/* Initialize Hardware Abstraction Layer */
hal_init();
/* Set receive buffers empty and point to the first */
for (i=0;i<RF230_CONF_RX_BUFFERS;i++) rxframe[i].length=0;
rxframe_head=0;rxframe_tail=0;