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enc28j60: Print the status vector in case of transmit error

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This makes debugging easier.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
This commit is contained in:
Benoît Thébaudeau 2015-07-14 22:29:51 +02:00
parent 8c6e3e348a
commit 8615b77da0
1 changed files with 20 additions and 4 deletions
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24
dev/enc28j60/enc28j60.c
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@ -498,6 +498,8 @@ enc28j60_init(uint8_t *mac_addr)
int
enc28j60_send(uint8_t *data, uint16_t datalen)
{
uint16_t dataend;
if(!initialized) {
return -1;
}
@ -538,8 +540,9 @@ enc28j60_send(uint8_t *data, uint16_t datalen)
writedata(data, datalen);
/* Write a pointer to the last data byte. */
writereg(ETXNDL, (TX_BUF_START + datalen + 0) & 0xff);
writereg(ETXNDH, (TX_BUF_START + datalen + 0) >> 8);
dataend = TX_BUF_START + datalen;
writereg(ETXNDL, dataend & 0xff);
writereg(ETXNDH, dataend >> 8);
/* Clear EIR.TXIF */
clearregbitfield(EIR, EIR_TXIF);
@ -550,15 +553,28 @@ enc28j60_send(uint8_t *data, uint16_t datalen)
setregbitfield(ECON1, ECON1_TXRTS);
while((readreg(ECON1) & ECON1_TXRTS) > 0);
#if DEBUG
if((readreg(ESTAT) & ESTAT_TXABRT) != 0) {
PRINTF("enc28j60: tx err: %d: %02x:%02x:%02x:%02x:%02x:%02x\n", datalen,
uint16_t erdpt;
uint8_t tsv[7];
erdpt = (readreg(ERDPTH) << 8) | readreg(ERDPTL);
writereg(ERDPTL, (dataend + 1) & 0xff);
writereg(ERDPTH, (dataend + 1) >> 8);
readdata(tsv, sizeof(tsv));
writereg(ERDPTL, erdpt & 0xff);
writereg(ERDPTH, erdpt >> 8);
PRINTF("enc28j60: tx err: %d: %02x:%02x:%02x:%02x:%02x:%02x\n"
" tsv: %02x%02x%02x%02x%02x%02x%02x\n", datalen,
0xff & data[0], 0xff & data[1], 0xff & data[2],
0xff & data[3], 0xff & data[4], 0xff & data[5]);
0xff & data[3], 0xff & data[4], 0xff & data[5],
tsv[6], tsv[5], tsv[4], tsv[3], tsv[2], tsv[1], tsv[0]);
} else {
PRINTF("enc28j60: tx: %d: %02x:%02x:%02x:%02x:%02x:%02x\n", datalen,
0xff & data[0], 0xff & data[1], 0xff & data[2],
0xff & data[3], 0xff & data[4], 0xff & data[5]);
}
#endif
sent_packets++;
PRINTF("enc28j60: sent_packets %d\n", sent_packets);
return datalen;