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Sniffer with ringbuf, works SOMETIMES

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* Sniffer uses phone endpoints for communication and the ringbuffer
    routines the phone communication uses
* Most times the Usart1 interrupt is not triggered, and therefore
    no values are recorded
This commit is contained in:
Christina Quast
2015-04-12 09:31:36 +02:00
parent 5c6a299c71
commit 2b8a18bf3a
11 changed files with 80 additions and 72 deletions
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8
firmware/src_simtrace/simtrace_iso7816.c
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@@ -102,7 +102,6 @@ void USART1_IrqHandler( void )
}
*/
uint32_t csr = USART_PHONE->US_CSR;
// PR("---- stat: %x\n\r", csr);
if (csr & US_CSR_TXRDY) {
/* transmit buffer empty, nothing to transmit */
@@ -111,14 +110,15 @@ void USART1_IrqHandler( void )
stat = (csr&(US_CSR_OVRE|US_CSR_FRAME|
US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK|
(1<<10)));
// int c = (USART_PHONE->US_RHR) & 0xFF;
uint8_t c = (USART_PHONE->US_RHR) & 0xFF;
// printf(" %x", c);
if (stat == 0 ) {
/* Fill char into buffer */
rbuf_write(&sim_rcv_buf, (USART_PHONE->US_RHR) & 0xFF);
rbuf_write(&sim_rcv_buf, c);
} else {
PR("e %x st: %x\n", (USART_PHONE->US_RHR) & 0xFF, stat);
rbuf_write(&sim_rcv_buf, c);
PR("e %x st: %x\n", c, stat);
} /* else: error occured */
char_stat = stat;