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Requests for Interpreting Output Results

Hello,

I am testing emstat pico with STM32f4 controller. Based on the LSV measurements, I got these results. So what does this result mean in terms of diagnosing problem?

const char * Linear_Sweep = "e\n"
							 "var c\n"
							 "var p\n"
							 // Set hardware configuration to high speed mode.
							 "set_pgstat_mode 3\n"
							 // Set maximum bandwith of the signal being measured. Any signal of significant higher frequency than the set bandwidth will be filtered out.
							 // Set the maximum bandwidth to frequency of 200 Hz.
								 "set_max_bandwidth 200\n"
							 // Selects the lowest current range that can measure the 'max value' current without causing an overload. That is 500uA.
							 "set_range ba 100u\n"
							 // Set WE potential to -500mV
							 "set_e -500m\n"
							 // Turn the cell on. The instrument will start applying the configure potential current.
							 "cell_on\n"
							// Wait 1 second
							 "wait 100m\n"
							 // The LSV performs a potential sweep from -500 mV to 500 mV with steps of 50
							 //mV at a rate of 100 mV/s
							 "meas_loop_lsv p c -500m 500m 50m 500m\n"
							// Start measurement data packet.
							 "pck_start\n"
							 // Add variable p to the measurement data package
							 "pck_add p\n"
							 // Add variable c to the measurement data package
							 "pck_add c\n"
							 // Signal the end of a measurement package
							 "pck_end\n"
							 "endloop\n"
		 	 	 	 	 	 "on_finished:\n"
							 "cell_off\n"
							 "\n";

e

Failed to parse package: -5

Failed to parse package: -5

Failed to parse package: -5

Failed to parse package: -5

Failed to parse package: -5

Failed to parse package: -5

Failed to parse package: -5
Pda7F85F3Fu;ba955CB9Cf,14,27

Receiving measurement response:1	E set[V]: -4.999E-01	I[A]: 2.240E-08	status: Underload        	CR: 125 uA               	
2	E set[V]: -4.497E-01	I[A]: 2.240E-08	status: Underload        	CR: 200 uA (High speed)  	
3	E set[V]: -3.995E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
4	E set[V]: -3.493E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
5	E set[V]: -2.992E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
6	E set[V]: -2.490E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
7	E set[V]: -1.988E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
8	E set[V]: -1.486E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
9	E set[V]: -9.840E-02	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
10	E set[V]: -4.821E-02	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
11	E set[V]: 1.976E-03Pd4	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
12	E set[V]: 1.976E-03	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
13	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
14	E set[V]: 1.525E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
15	E set[V]: 2.027E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
16	E set[V]: 2.529E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
17	E set[V]: 3.031E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
18	E set[V]: 3.533E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
19	E set[V]: 4.035E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
20	E set[V]: 4.537E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
21	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
22	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
23	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
24	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
25	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
26	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
27	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
28	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
29	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	
30	E set[V]: 5.039E-01	I[A]: 1.120E-08	status: Underload        	CR: 200 uA (High speed)  	

Parents
  • It appears there is data in your buffer that is not a MethodSCRIPT response. Check that your buffers are clear beforehand.

    There also appears to be MethodSCRIPT output data finding it's way into your data stream to the host (PC?). This should not happen. I would recommend verifying your communication separately from the EmStat Pico.

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  • It appears there is data in your buffer that is not a MethodSCRIPT response. Check that your buffers are clear beforehand.

    There also appears to be MethodSCRIPT output data finding it's way into your data stream to the host (PC?). This should not happen. I would recommend verifying your communication separately from the EmStat Pico.

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