Hello,
I'm working on AM335s custom board and trying to boot using UART. My board has
* AM3352 processor
* TPS65217C PMIC
* IS43TR16128A-125KBLI DDR3
serial console used - Minicom
Referred below link to send send file over UART.
http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User%27s_Guide#Boot_Over_UART
- spl/u-boot-spl.bin file is successfully sent using Xmodem.
- Unable to send u-boot-spl.bin file using Ymodem. File trasfer is failed with error message "spl: ymodem err - Cancelled" and minicom says
+-----------[ymodem upload - Press CTRL-C to quit]------------+
|Retry 0: Got 78 for sector ACK |
|Retry 0: NAK on sector |
|Retry 0: Retry Count Exceeded |
| |
|Transfer incomplete |
| |
| READY: press any key to continue... |
+-------------------------------------------------------------+
CCCC3.10 (Oct 08 2015 - 15:04:41) ### Use AM335x_SK V1.2 setting ### Reading eeprom_return0. 5 ### Use AM335x_SK V1.2 setting ### Reading eeprom_return0. inside board_is_evm_sk Entering sdram_init### Use AM335x_SK V1.2 setting ### Reading eeprom_return0. 6 ddr1 ddr2 ddr3 ddr4 ddr3 ddr_inline ddr6 ddr7 ddr8 ddr9 16 7 18 mem malloc timer init 21 23 27 28 30 31 33 34 36 37 38 39 24 25 config usb0 config usb1 26 20 ### Use AM335x_SK V1.2 setting ### Reading eeprom_return0. freq2 freq3 freq4 freq9 i2cgot11 pmic1 pmic2 pmic3 pmic4 clock1 pmic1 pmic2 pmic3 pmic4 clock1 22 spl.0 spl.1.1 boot device is 65 spl.7 Entered spl_ymodem_load_image Cbefore while xyzModem_get_hdr func xyz.tx_ack = [0] xyz.__chan = [1073805700] | c = [18] else -- CAN while hdr_found res = [1] || c = [18] else -- CAN while hdr_found res = [1] || c = [18] xyzModem_cancel -- if stst = [-5] spl: ymodem err - Cancelled ### ERROR ### Please RESET the board ###
Boot sequence used is SYSBOOT[4:0] is 10111b.
I'm not sure DDR configuration is proper or not. PFB DDR timing configuration.
Memory datasheet symbol | Memory Datasheet value |
tCK | 3.3 |
tRP | 13.125 |
tRCD | 13.125 |
tWR | 15 |
tRAS | 35 |
tRC | 48.125 |
tRRD | 4 |
tWTR | 4 |
tXP | 3 |
ODTLon | 3 |
tXS | 170 |
tXSDLL | 512 |
tRTP | 4 |
tCKE | 3 |
tZQCS | 64 |
tRFC | 160 |
tREFI | |
tRASmax |
Please help me in resolving the issue.
Thanks and regards,
Lahari P.