NXP PCF8576C Segmented LCD Controller Interface Problems

Started by one00100100 in MSP4308 years ago 5 replies

I am using I2C to interface to the lcd controller. We are using the MSP430F5438A chip and the full IAR workbench. I have a scope on the data and...

I am using I2C to interface to the lcd controller. We are using the MSP430F5438A chip and the full IAR workbench. I have a scope on the data and clk lines. The scope seems to verify that start and stop conditions are correct. Further, when I send the slave address, the scope shows data signals l,h,h,h,l,l,l,l when clk is h (high). I am sending 0x70 which is 01110000. This all seems correct, ...


linker overlapping segments

Started by ethernet777 in MSP4308 years ago 2 replies
IAR

I am seeing the linker place code for one module in a location that another module has reserved with the DS directive. Details: - IAR...

I am seeing the linker place code for one module in a location that another module has reserved with the DS directive. Details: - IAR KickStart for MSP430 5.51.3 - project is assembler-only - target is MSP430G2412 Example code: Module A: aseg 0xE1E6 a1: dc16 0x1234 a2: ds16 16 a3: dc16 0x5678 end Module B: rseg CDATA :CODE(1) b1: dc16 0x7654 ...


Proper header file for TI devices

Started by one00100100 in MSP4308 years ago 2 replies

Hi Folks, I am migrating a project from the MSP430F5438 chip to the MSP430F5438A chip because the non-A chip is "not recommended for new...

Hi Folks, I am migrating a project from the MSP430F5438 chip to the MSP430F5438A chip because the non-A chip is "not recommended for new projects". For the non-A version, in my c software I #include . Most things still seem to work, but how do I find out if this is the correct file for the A version? It seems someone awhile ago showed a method that would always ensure the co


Timer A on x2xx parts: SCCI state when in capture mode, not compare mode

Started by Jon Kirwan in MSP4308 years ago

I'm going to find out soon enough (it's not crucial that I know before doing the design and writing the critical part of the software), but I'm...

I'm going to find out soon enough (it's not crucial that I know before doing the design and writing the critical part of the software), but I'm curious if anyone has explored what happens to SCCI during capture mode. Reading the Family Guide's Figure 12-1 on page 365 suggests to me that there is a "possibility" that it is affected (which is slightly nicer for me, if so.) I have a signal c...


Flash Erase Problems When Lose Power -- SOLUTION

Started by one00100100 in MSP4308 years ago 2 replies

Hey Guys, Thanks to all who tried to help me as I have struggled with this problem. I have placed a file in the files section detailing the...

Hey Guys, Thanks to all who tried to help me as I have struggled with this problem. I have placed a file in the files section detailing the algorithm. This was a tough nut for me. The breakthroughs came after I realized that the PMMIFG interrupt could interrupt a flash erase operation. This by itself would not be bad, but it delayed the erase until we lost power, and for those who don't ...


IAR kickstart problems and Win7 64-bit resolved, I think.

Started by Jon Kirwan in MSP4308 years ago 9 replies

I've posted here a couple of times about my problems using IAR Kickstart with the LaunchPad and other devices, when running on my Win7 Ultimate...

I've posted here a couple of times about my problems using IAR Kickstart with the LaunchPad and other devices, when running on my Win7 Ultimate 64-bit machine. I do work hard to keep it fairly clean (it's my work machine and although I keep all of the Microsoft updates rather up-to-date, I don't install much by way of 3rd party software on it and I block a lot of web stuff and ensure that no...


MSP430x2xx clock module w/32kHz DCO PI closed loop control

Started by Jon Kirwan in MSP4308 years ago

I'm curious about taking a look at code for existing, good quality PI or PID control loop control over the DCO vs an external 32kHz crystal. Not...

I'm curious about taking a look at code for existing, good quality PI or PID control loop control over the DCO vs an external 32kHz crystal. Not calibration code for constants to use without change, but code runs continually to track temperature and time variations and allows me to specify the desired DCO rate and will hold the DCO tight up against that. I've been using assembly code I wro...


VBUS on MSP430F5529

Started by John in MSP4308 years ago 12 replies

Hi all, I was just wondering if I have a unit running on a battery how I can swap the supply voltage with the VBUS when the MSP430F5529 is...

Hi all, I was just wondering if I have a unit running on a battery how I can swap the supply voltage with the VBUS when the MSP430F5529 is connected to PC through the USB interface? I know to connect the battery and the VBUS together through diodes. There is a disadvantage this way which drops the battery voltage by 0.4V. Any suggestion would be appreciated. Thanks, John. ----------...


PAN1323 on MSP-Experiment Board 5438A

Started by John in MSP4308 years ago 9 replies

Hi all, I have a MSP-Experiment board and a PAN1323 development board attached. I am trying to find a software to run the Bluetooth Stack on...

Hi all, I have a MSP-Experiment board and a PAN1323 development board attached. I am trying to find a software to run the Bluetooth Stack on it but I cannot find any. I am assuming that TI must have a demo software. Any comment would be appreciated. Thanks, John.


interruptWhileErasingFlashQuestions

Started by one00100100 in MSP4308 years ago 5 replies

Three questions... We have done some scope testing using DIO markers and it seems to indicate that the pMM SVMHIFG interrupt will interrupt...

Three questions... We have done some scope testing using DIO markers and it seems to indicate that the pMM SVMHIFG interrupt will interrupt an ongoing flash erase operation. 1. Is this the expected behavior? 2. if I make the ISR very quick as in the example below where I check a flag and if the flag is set, I return immediately, would the flash erase complete normally, or will...


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