Hello,
I am using a Zephyr example that prints "Hello world" on UART1. I added blinking the LED to this code. I can get this running on the MIMXRT1060-EVKB. It uses external SPI flash which is at address 0x60000000. I program this hex file using JTAG and I am monitoring the PC and CycleCnt and they seem to be behaving normally (PC = 60002DEA, CycleCnt = F630B9B9).
I changed the blinking LED to toggling a GPIO (GPIO_AD_B1_03) which is available to probe in both EVKB and our product board configuration, and tested this code on the EVKB.
I am flashing this exact code on our new board. The new board also has an external SPI flash at address 0x60000000. I am programming it exactly the same way as the EVKB. When I look at the PC, the CycleCnt is actually running but the PC is off (PC = 0020ED48, CycleCnt = 9661031E) and hence the code does not do anything.
I have also tried flashing a circuit python hex to this new board and a regular bare-metal example. The flashing works and when I halt the MCU, the PC values seem like what it should be (PC = 60007E36, CycleCnt = DFDEC1A7). Using circuit python I am able to toggle GPIO_AD_B1_03, so I know it is not grounded.
When looking at JLinkFlashLite API, the circuitpython code is as follows:
Selected file: circuitpython_p1_0809.hex
Data file contains 3 memory ranges:
#0: 0x60000000 - 0x600001FF (512 Bytes)
#1: 0x60001000 - 0x6000102F (48 Bytes)
#2: 0x6000C000 - 0x6009958F (578960 Bytes)
The bare-metal example looks like:
Selected file: enet_txrx_transfer.hex
Data file contains 3 memory ranges:
#0: 0x60000000 - 0x600001FF (512 Bytes)
#1: 0x60001000 - 0x6000102F (48 Bytes)
#2: 0x60002000 - 0x6000B69F (38560 Bytes)
And the firmware file from PIO looks like:
Selected file: /home/shruti/Downloads/zephyr-get-started/firmware.hex
Data file contains 1 memory range:
#0: 0x60000000 - 0x60007C49 (31818 Bytes)
Any ideas what could potentially be happening? Again, I can run the code just fine on the EVKB board. Is there an extra configuration I have to do on a chip that is not on an evaluation board?
