Problem with latest v4l-dvb hg

linux-dvb Mauro Carvalho Chehab 2 participants 6 messages Jun 6, 2008 – Jun 15, 2008 14 messages not in the archive Media (V4L/DVB)

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Mauro Carvalho Chehab

author

2008-06-06 21:36 UTC #2 lore raw

Quoted 120 lines · On Fri, 06 Jun 2008 22:59:10 +0200 hermann pitton <[email protected]>…

Hi,

Am Samstag, den 07.06.2008, 03:00 +0800 schrieb timf:

Quoted 112 lines

Hi,
I just downloaded the latest hg from linuxtv.org/hg/v4l-dvb, installed it, rebooted.
This is the dmesg:

[   37.241810] Linux video capture interface: v2.00
[   37.425032] saa7130/34: v4l2 driver version 0.2.14 loaded
[   37.425559] saa7133[0]: found at 0000:04:08.0, rev: 209, irq: 16, 
latency: 32, mmio: 0xfdbff000
[   37.425566] saa7133[0]: subsystem: 17de:7250, board: KWorld DVB-T 210 
[card=114,autodetected]
[   37.425574] saa7133[0]: board init: gpio is 100
[   37.576692] saa7133[0]: i2c eeprom 00: de 17 50 72 ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576701] saa7133[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576707] saa7133[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576713] saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576718] saa7133[0]: i2c eeprom 40: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576724] saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576729] saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576735] saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576740] saa7133[0]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576745] saa7133[0]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576751] saa7133[0]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576756] saa7133[0]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576762] saa7133[0]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576767] saa7133[0]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576773] saa7133[0]: i2c eeprom e0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.576778] saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   37.644644] saa7133[0]: registered device video0 [v4l2]
[   37.644664] saa7133[0]: registered device vbi0
[   37.644684] saa7133[0]: registered device radio0
[   37.877664] Unable to handle kernel NULL pointer dereference at 
00000000000000b0 RIP:
[   37.877670]  [<ffffffff88ad9909>] :dvb_core:dvb_frontend_detach+0x9/0x90
[   37.877687] PGD 6d09c067 PUD 6d3d2067 PMD 0
[   37.877690] Oops: 0000 [1] SMP
[   37.877693] CPU 0
[   37.877695] Modules linked in: tda1004x saa7134_dvb videobuf_dvb

dvb_core snd_seq_oss snd_seq_midi tuner snd_rawmidi snd_seq_midi_event saa7134 compat_ioctl32 snd_seq snd_timer snd_seq_device videodev v4l1_compat v4l2_common videobuf_dma_sg videobuf_core ir_kbd_i2c ir_common snd tveeprom nvidia(P) button k8temp parport_pc parport soundcore i2c_nforce2 i2c_core evdev shpchp pci_hotplug pcspkr ext3 jbd mbcache sg sd_mod ehci_hcd ohci_hcd pata_amd forcedeth usbcore sata_nv pata_acpi ata_generic libata scsi_mod thermal processor fan fbcon tileblit font bitblit softcursor fuse

[   37.877729] Pid: 3220, comm: modprobe Tainted: P        
2.6.24-18-generic #1
[   37.877732] RIP: 0010:[<ffffffff88ad9909>]  [<ffffffff88ad9909>] 
:dvb_core:dvb_frontend_detach+0x9/0x90
[   37.877741] RSP: 0018:ffff81006d3fbd68  EFLAGS: 00010292
[   37.877743] RAX: 00000000ffffffea RBX: 00000000ffffffff RCX: 
ffffffff88af99b0
[   37.877745] RDX: 00000000ffffffea RSI: ffffffff88af2135 RDI: 
0000000000000000
[   37.877747] RBP: 0000000000000000 R08: 0000000000000000 R09: 
ffff81006fe35180
[   37.877749] R10: 0000000000000000 R11: 0000000000000001 R12: 
ffffffff88af4b80
[   37.877751] R13: ffff81006b9c8170 R14: ffffffff88af4b80 R15: 
ffffc200008bccc8
[   37.877754] FS:  00007f8528bcf6e0(0000) GS:ffffffff805b9000(0000) 
knlGS:0000000000000000
[   37.877756] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   37.877758] CR2: 00000000000000b0 CR3: 000000006ce31000 CR4: 
00000000000006e0
[   37.877760] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
0000000000000000
[   37.877762] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 
0000000000000400
[   37.877765] Process modprobe (pid: 3220, threadinfo ffff81006d3fa000, 
task ffff81006d82f7a0)
[   37.877767] Stack:  ffff81006b9c8000 00000000ffffffff 
ffff81006b9c8000 ffffffff88aef7a8
[   37.877771]  7fffffff000000d8 ffff81006b9c8000 0000000000000001 
ffff81006d82f7a0
[   37.877775]  ffffffff80233e20 0000000000100100 0000000000200200 
0000000000000001
[   37.877778] Call Trace:
[   37.877786]  [<ffffffff88aef7a8>] :saa7134_dvb:dvb_init+0x178/0x15a0
[   37.877793]  [<ffffffff80233e20>] default_wake_function+0x0/0x10
[   37.877813]  [<ffffffff88a84f8e>] :saa7134:mpeg_ops_attach+0x4e/0x60
[   37.877823]  [<ffffffff88a857eb>] :saa7134:saa7134_ts_register+0x2b/0x80
[   37.877829]  [<ffffffff80263c5e>] sys_init_module+0x18e/0x1a90
[   37.877842]  [<ffffffff80247d30>] msleep+0x0/0x30
[   37.877849]  [<ffffffff8020c37e>] system_call+0x7e/0x83
[   37.877856]
[   37.877857]
[   37.877857] Code: 48 8b 87 b0 00 00 00 48 85 c0 74 0e ff d0 48 8b bd 
b0 00 00
[   37.877865] RIP  [<ffffffff88ad9909>] 
:dvb_core:dvb_frontend_detach+0x9/0x90
[   37.877873]  RSP <ffff81006d3fbd68>
[   37.877874] CR2: 00000000000000b0
[   37.877877] ---[ end trace bbead029e56cc160 ]---

Quoted 4 lines

Any suggestions?
Regards,
Timf

Quoted 8 lines

Tim, on a first shot it looks like you are on an older kernel.
There are issues with the backward compat of the build scripts.
With "make" (all) not all dependencies are resolved, especially the tuner modules are not built. Should compile first of all and you seem not to have the tda827x.

Ok, but you shouldn't be suffering an OOPS. Instead, the driver should just not register dvb.

Tim,

Before upgrading the kernel or trying to fix tda827x, could you please try this small patch? This should fix the OOPS.

linux/drivers/media/video/saa7134/saa7134-dvb.c +2 -1

diff -r 843710c95bf7 linux/drivers/media/video/saa7134/saa7134-dvb.c
@@ -1345,7 +1345,8 @@
 	return ret;
 
 dettach_frontend:
-	dvb_frontend_detach(dev->dvb.frontend);
+	if (dev->dvb.frontend)
+		dvb_frontend_detach(dev->dvb.frontend);
 	dev->dvb.frontend = NULL;
 
 	return -1;

Cheers,
Mauro

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Mauro Carvalho Chehab

author

2008-06-08 10:37 UTC #7 lore raw

Re: [linux-dvb] Problem with latest v4l-dvb hg -Patch?

Quoted 3 lines · On Sun, 08 Jun 2008 10:02:06 +0800 timf <[email protected]> wrote:

Should I send in a patch for this?
I am very close to having a patch ready for Avermedia A16D, Avermedia E506 (both xc2028-saa7134).

Please send us a patch when you finish it.

Cheers,
Mauro

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Mauro Carvalho Chehab

author

2008-06-08 10:40 UTC #8 lore raw

In reply to a message not in the archive

Quoted 69 lines · On Sun, 08 Jun 2008 03:00:03 +0200 hermann pitton <[email protected]>…

Am Samstag, den 07.06.2008, 13:42 +0800 schrieb timf:
Quoted 47 lines
Quoted 7 lines · timf
Quoted 5 lines · Mauro Carvalho Chehab
On Fri, 06 Jun 2008 22:59:10 +0200
hermann pitton <[email protected]> wrote:
Quoted 5 lines
Quoted 5 lines
Quoted 5 lines
Hi,
Am Samstag, den 07.06.2008, 03:00 +0800 schrieb timf:
<snip>
Hi all,
Something very strange:
If in saa7134-dvb.c I do this:
<snip>
static int configure_tda827x_fe_kw210(struct saa7134_dev *dev,
struct tda1004x_config *cdec_conf, struct tda827x_config *tuner_conf)
{
    dev->dvb.frontend = dvb_attach(tda10046_attach, cdec_conf, 
&dev->i2c_adap);
    if (dev->dvb.frontend) {
/*        if (cdec_conf->i2c_gate)
            dev->dvb.frontend->ops.i2c_gate_ctrl = tda8290_i2c_gate_ctrl; */
        if (dvb_attach(tda827x_attach, dev->dvb.frontend,
                   cdec_conf->tuner_address,
                   &dev->i2c_adap, tuner_conf))
            return 0;

        wprintk("no tda827x tuner found at addr: %02x\n",
                cdec_conf->tuner_address);
    }
    return -EINVAL;
}
<snip>
    case SAA7134_BOARD_KWORLD_DVBT_210:
/*        if (configure_tda827x_fe(dev, &kworld_dvb_t_210_config, */
        if (configure_tda827x_fe_kw210(dev, &kworld_dvb_t_210_config,
                     &tda827x_cfg_2) < 0)
            goto dettach_frontend;
        break;
Quoted 8 lines
<snip>
then I can scan all available DVB-T channels, and view them. If I leave it as original, it won't scan/view SBS.
Can someone tell me what part does this play?
        if (cdec_conf->i2c_gate)
            dev->dvb.frontend->ops.i2c_gate_ctrl = tda8290_i2c_gate_ctrl;
Tim,
without looking in any detail, choosed to have enough for myself.
Almost all, but not all, use the tda8290 analog IF demodulator within the saa7131e, on prior saa7135 stuff also present as a sepatate chip, as an i2c bridge to control the tuner, also if in DVB-T mode ...
To deminish interference on the bus, it is only opened to send the tuning bytes and then closed again.

Quoted 8 lines

IIRC, on your card are two tda8275a, which could serve as hybrid tuners, but on that early design it was choosen to burn some money in favor to have a first analog and DVB-T at once solution.
Since you have two tuners, you are not depending on the DVB-T gate stuff for DVB-T, which is a point for swichting issues from analog to DVB else on single hybrid tuners. To have a digital tuner controlled from the analog IF demod some still don't get and cause a lot of trouble.

There's another possibility. It might be possible that Viro's patches broke firmware load. Did firmware load worked before (with the same version you're using)?

Cheers,
Mauro

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hermann pitton

2008-06-10 00:24 UTC #11 lore raw

Re: [linux-dvb] Problem with latest v4l-dvb hg -extra question - saa7133[0]: board init: gpio

Hi,

Am Montag, den 09.06.2008, 11:19 +0800 schrieb timf:

Quoted 46 lines

Quoted 45 lines · timf
Quoted 33 lines · Mauro Carvalho Chehab
Quoted 28 lines · On Sun, 08 Jun 2008 03:00:03 +0200 hermann pitton <[email protected]>…
Am Samstag, den 07.06.2008, 13:42 +0800 schrieb timf:
Quoted 25 lines
Quoted 18 lines · timf
Quoted 14 lines · Mauro Carvalho Chehab
Quoted 7 lines · On Fri, 06 Jun 2008 22:59:10 +0200 hermann pitton <[email protected]>…
Hi,
Am Samstag, den 07.06.2008, 03:00 +0800 schrieb timf:
<snip>
<snip>
Quoted 8 lines
There's another possibility. It might be possible that Viro's patches broke firmware load. Did firmware load worked before (with the same version you're using)?
Cheers,
Mauro

Quoted 12 lines

Quoted 2 lines
Hi all,
Further question, I noticed that
saa7133[0]: board init: gpio is xxxxxx
for both cards keeps changing. Is that normal?
Quoted 4 lines
Regards,
Timf

yes, at least to some extend, if all is known.

There is no clean up on exit or something.

If you used the radio last it will come up with 0x0200000 on next load. To suppress that is no help, see a little later.

If you tried other cards, it will show what you have last taken ...

However, within this hybrid device stuff, even better with multiple tuners, multiple DVB-S/DVB-T channel decoders and also analog IF demodulators, almost all have some gpio/port pins too, the manufacturers have reach choices how to do all sort of switching on such a card and can easily deviate from already known solutions.

A card might be wired also like that, that if for example a remote IR receiver is plugged it, a gpio pin changes to output and keypresses can be sampled from there. Also cards which do host mode switching between DVB TS parallel interface and mpeg interface for an mpeg encoder show internally changes of the gpio configuration.

Even an LowNoiseAmplifier might depend on gpio switching, AGC switching between analog and digital tuning and more. The first 8 pins of the 28 gpio pins of the saa713x chips do transmit the TS or mpeg encoder data and permanently change when in operation.

We are not much further else and have been there already.

Since I can't reproduce it, and I'm for sure not the firmware expert, since never in trouble, find others and try to reach the original contributors of the card, that you can get some confirmation to come out of this random for you alone.

Confirm that you have no second firmware eeprom, as I already asked for. If present and not functional it could be already a reason for the trouble.

Take this up with the LNA, disable it in saa7134-dvb for your card and see what happens. If it has an impact, noticeable worse or even no tuning on DVB-T anymore, you should have config_tuner = 2 in your saa7134-cards.c entry too for proper switching.

Or to disable it might even improve all, how can one know without reports of what it does and just have it there with "three more cards added" ;)

If you are running with private patches, include a hg diff > my.patch.

Anyone else in problems with loading tda10046 firmware on saa713x from file?

Cheers,
Hermann

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Mauro Carvalho Chehab

author

2008-06-14 11:59 UTC #14 lore raw

Hi Tim,

I'm not sure if it is the same bug, but, on a device I have with tda10046, I need to slow firmware load, otherwise, it will fail. This happens on an AMD 64 dual core notebook @1.8GHz. The same board, on an Intel single core @1.1GHz works without troubles.

Please test the enclosed patch.

Quoted 4 lines · On Mon, 09 Jun 2008 20:24:19 +0800 timf <[email protected]> wrote:

Quoted 4 lines

[   38.194402] tuner' 2-004b: chip found @ 0x96 (saa7133[0])
[   38.286214] tda829x 2-004b: setting tuner address to 61
[   38.370076] tda829x 2-004b: type set to tda8290+75a
[   42.195417] saa7133[0]: registered device video0 [v4l2]

Quoted 8 lines

[   42.195437] saa7133[0]: registered device vbi0
[   42.195461] saa7133[0]: registered device radio0
[   42.355808] DVB: registering new adapter (saa7133[0])
[   42.355815] DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
[   42.427655] tda1004x: setting up plls for 48MHz sampling clock
[   44.678388] tda1004x: timeout waiting for DSP ready
[   44.718322] tda1004x: found firmware revision 0 -- invalid
[   44.718326] tda1004x: trying to boot from eeprom

linux/drivers/media/dvb/frontends/tda1004x.c +3 -0

diff -r 000ffc33cb89 linux/drivers/media/dvb/frontends/tda1004x.c
@@ -135,6 +135,9 @@
 
 	msg.addr = state->config->demod_address;
 	ret = i2c_transfer(state->i2c, &msg, 1);
+
+	if (state->config->xtal_freq == TDA10046_XTAL_16M)
+		msleep(1);
 
 	if (ret != 1)
 		dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",

Cheers,
Mauro

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Mauro Carvalho Chehab

author

2008-06-15 11:23 UTC #19 lore raw

Quoted 158 lines · On Sun, 15 Jun 2008 14:38:20 +0800 timf <[email protected]> wrote:

Quoted 157 lines · timf

Quoted 126 lines · timf

Quoted 92 lines · timf

Quoted 48 lines · Mauro Carvalho Chehab
Hi Tim,
I'm not sure if it is the same bug, but, on a device I have with tda10046, I need to slow firmware load, otherwise, it will fail. This happens on an AMD 64 dual core notebook @1.8GHz. The same board, on an Intel single core @1.1GHz works without troubles.
Please test the enclosed patch.
Quoted 8 lines · On Mon, 09 Jun 2008 20:24:19 +0800 timf <[email protected]> wrote:
Quoted 8 lines
[   38.194402] tuner' 2-004b: chip found @ 0x96 (saa7133[0])
[   38.286214] tda829x 2-004b: setting tuner address to 61
[   38.370076] tda829x 2-004b: type set to tda8290+75a
[   42.195417] saa7133[0]: registered device video0 [v4l2]
[   42.195437] saa7133[0]: registered device vbi0
[   42.195461] saa7133[0]: registered device radio0
[   42.355808] DVB: registering new adapter (saa7133[0])
[   42.355815] DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
Quoted 8 lines
Quoted 8 lines
[   42.427655] tda1004x: setting up plls for 48MHz sampling clock
[   44.678388] tda1004x: timeout waiting for DSP ready
[   44.718322] tda1004x: found firmware revision 0 -- invalid
[   44.718326] tda1004x: trying to boot from eeprom
diff -r 000ffc33cb89 linux/drivers/media/dvb/frontends/tda1004x.c
linux/drivers/media/dvb/frontends/tda1004x.c +3 -0
@@ -135,6 +135,9 @@
 
 	msg.addr = state->config->demod_address;
 	ret = i2c_transfer(state->i2c, &msg, 1);
+
+	if (state->config->xtal_freq == TDA10046_XTAL_16M)
+		msleep(1);
 
 	if (ret != 1)
 		dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",
Quoted 7 lines
Cheers,
Mauro
Hi Mauro,
Patch applied, hard to tell if improved.
Prior to patch:
Strange thing, maybe useful info, seems if boot from shutdown overnight, never loads firmware, always "revision ff"
Always have to restart, sometimes a few times, for firmware to load.
dmesg after patch, reboot:
[   41.504805] saa7133[0]: registered device vbi0
[   41.504836] saa7133[0]: registered device radio0
[   41.504913] tuner' 2-004b: Cmd TUNER_SET_STANDBY accepted for analog TV
[   41.673243] DVB: registering new adapter (saa7133[0])
[   41.673249] DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
[   41.784037] tda1004x: setting up plls for 48MHz sampling clock
[   44.123523] tda1004x: timeout waiting for DSP ready
[   44.179434] tda1004x: found firmware revision 0 -- invalid
[   44.179436] tda1004x: trying to boot from eeprom
<snip>
[   46.511807] tda1004x: timeout waiting for DSP ready
[   46.567659] tda1004x: found firmware revision 0 -- invalid
[   46.567665] tda1004x: waiting for firmware upload...
[   47.166298] tuner' 2-004b: Cmd AUDC_SET_RADIO accepted for radio
[   47.166307] tuner' 2-004b: radio freq set to 87.50
[   59.147648] tda1004x: found firmware revision 29 -- ok
[   59.675203] tda827x_probe_version: could not read from tuner at addr: 
0xc2
[   60.099525] tuner' 2-004b: Cmd TUNER_SET_STANDBY accepted for radio
sysinfo:
AMD Athlon(tm) 64 X2 Dual Core Processor 3600+

Quoted 11 lines

Regards,
Timf
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Woops!
Just tried dvb - not good!

dmesg:

[   76.110517] eth0: no IPv6 routers present
[ 1122.615680] tda1004x: setting up plls for 48MHz sampling clock
[ 1122.810922] tda1004x: found firmware revision ff -- invalid
[ 1122.810926] tda1004x: trying to boot from eeprom
[ 1123.122401] tda1004x: found firmware revision ff -- invalid
[ 1123.122405] tda1004x: waiting for firmware upload...
[ 1123.131383] tda1004x: Error during firmware upload
[ 1123.139410] tda1004x: found firmware revision ff -- invalid
[ 1123.139414] tda1004x: firmware upload failed
[ 1123.161822] tda827x_probe_version: could not read from tuner at addr: 
0xc2
[ 1125.135952] tda827xo_set_params: could not write to tuner at addr: 0xc2
[ 1126.005563] tda827xo_set_params: could not write to tuner at addr: 0xc2
[ 1126.876173] tda827xo_set_params: could not write to tuner at addr: 0xc2

[

Quoted 10 lines

Regards,
Timf
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Tried power cycle, no, then restart, no
dmesg now:

[   38.427001] saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff
[   38.427976] ACPI: PCI Interrupt Link [APC7] enabled at IRQ 16
[   38.427979] ACPI: PCI Interrupt 0000:00:05.0[A] -> Link [APC7] -> GSI 
16 (level, low) -> IRQ 16
[   38.427986] PCI: Setting latency timer of device 0000:00:05.0 to 64
[   38.542753] saa7133[0]: registered device video0 [v4l2]
[   38.542775] saa7133[0]: registered device vbi0
[   38.542797] saa7133[0]: registered device radio0
[   38.575763] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  169.12  
Thu Feb 14 17:51:09 PST 2008
[   38.718512] tda10046: chip is not answering. Giving up.

[

Regards,
Timf

Quoted 8 lines

Quoted 6 lines
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OK, I re-installed a v4l-dvb I downloaded 12-june-2008, and now dvb works fine!

It seems that sometimes tda10046 firmware loading doesn't work. I've tried here other approaches, but still not working fine. Sometimes, firmware loads, sometimes don't. If you enable debug for tda1004x, you'll see that, sometimes, you get return -5 from write subroutine. Before the last patches I've merged, you'll "get invalid ff", since tda1004x weren't handling errors on most write or read ops.

Now, it will print a better message: "chip is not answering. Giving up."

Yet, firmware won't load always. I didn't go to datasheet yet, but maybe it has something to do with XTAL frequency.

Cheers,
Mauro

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