Mesa modbus and pktUart

vre
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14 Mar 2025 00:50 - 14 Mar 2025 00:54 #323880 by vre

Replied by vre on topic Mesa modbus and pktUart

Seems to be related also to this
forum.linuxcnc.org/27-driver-boards/5432...v2d-firmware?start=0

If after startup set update-hz to 0.0001 or something non zero problem seem to stops..
Is this division by zero bug?

#define MAX_MSG_LEN 16 // may be increased if necessary to max 251
#define DEBUG 2
static const hm2_modbus_chan_descriptor_t channels = {
/* {TYPE, FUNC, ADDR, COUNT, pin_name} */
{HAL_BIT, 2, 0x0000, 32, "in"},
{HAL_BIT, 15, 0x0000, 32, "out"},
// {HAL_U32, 6, 0x00FE, 1, "setbaud"},
// {HAL_U32, 3, 0x00FE, 1, "baud"},
};

Last edit: 14 Mar 2025 00:54 by vre.

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PCW
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14 Mar 2025 00:55 #323882 by PCW

Replied by PCW on topic Mesa modbus and pktUart

Yes, this is a long known bug, never set the update rate to 0.

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vre
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14 Mar 2025 00:57 - 14 Mar 2025 09:59 #323883 by vre

Replied by vre on topic Mesa modbus and pktUart

This is the reason for crazy data readings on encoders ?
I make now a config that encoder.count and encoder.velocity goes crazy to see if it stops by setting update-hz to non zero

Yes problem of noise in encoders resolves by non zero value to update-hz
verified by different configs that produced random data to different encoders.
All random data stop to encoders if update-hz is non zero but stop and modbus device to work.

Last edit: 14 Mar 2025 09:59 by vre.

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vre
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14 Mar 2025 09:58 #323901 by vre

Replied by vre on topic Mesa modbus and pktUart

If i set non zero update-hz problem of crazy data reading on encoders stop
but also stops working modbus device so no solution here..

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